硅酮胶 技术手册
西卡WS201S硅酮密封胶说明书
▪易于施工
▪抗下垂性能好
▪优异的耐候和耐老化性能
▪与多种基材粘接良好
适用范围
Sikasil®WS-201 S用于各种门窗的耐候密封。
仅供有专业技能的用户使用。为了保证粘结效果及与材料的相容性,事先应在实际的基材和环境下做试验。西卡WSBiblioteka 201 S硅酮密封胶技术数据
化学基础
单组分硅酮胶
颜色( CQP001-1)
黑、白、灰
固化机理
湿气固化
固化类型
中性
密度( 未固化)
1.4 kg/l
抗下垂性(CQP061-4 / ISO 7390)
好
施工温度
5 – 40 ℃
表干时间(CQP019-1)
40 分钟 A
固化速率(CQP049-1)
-40 – 150 ℃
CQP = Corporate Quality Procedure A) 23 ℃/50 % r.h. B) 28天C) 25 ℃以下储存
描述
Sikasil®WS-201 S是单组份、弹性、中性固化密封胶。它具有中低模量,是专为各种门窗耐候密封而设计的硅酮密封胶。有较强和持久的粘接力,对各种门窗形成优异的耐候密封。
参见图 1
邵 A 硬度( CQP023-1 / ISO 868)
40 B
拉伸强度(CQP036-1 / ISO 37)
0.7 MPa
100%弹性模量( CQP036-1 / ISO 37)
0.6 MPa
撕裂强度(CQP045-1 / ISO 34)
7.0 N/mm
工作温度(CQP509-1 / CQP513-1)
双组份硅酮中空玻璃密封胶使用手册
固化后方能搬运。 • 2.9每片玻璃封胶后,应有产品标识。
双组份硅酮中空玻璃胶使用手册
三、粘结性检测 对于密封胶应用中空玻璃制作的最关键的要求,就是密封
胶固化后对玻璃基材的粘结性。检测方法可以按照下列进行: 1、随批剥离粘结性试验
气排尽。
双组份硅酮中空玻璃密封胶使用手册
❖ 解决措施: 3、A、B组分按正确的使用比例进行混合。
A、B组分比例不正确导致密封胶固化过快,使得胶体未能完全浸 润基材,同时密封胶反应释放的小分子副产物不能及时排放出来,从而 在密封胶中聚集形成气泡,造成与基材的粘接强度降低。
பைடு நூலகம்
双组份硅酮中空玻璃密封胶使用手册
适用期、表干时间的检测对中空玻璃制造过程密封胶质量的 控制非常有效,对密封胶的使用是否有异常可以起到快速反映。 涂胶密实度的检测是保证密封完整性。
事前预防!
双组份硅酮中空玻璃密封胶使用手册
❖ 混合均匀性检测方法: 检查A组份即主剂和和B组份即固化剂是否充分混合均匀可以通 过蝴蝶试验进行检测。蝴蝶试验在每次开机,包括间断后的开机都应进 行。
双组份硅酮中空玻璃密封胶使用手册
1.6密封胶使用前需检测AB组份混合均匀性、适用期、表干时间、 下垂度、涂胶密实度检测
a、混合均匀性是指在由机械打胶时,初期混合过程将判断其 是否均匀,混合均匀后才能在中空玻璃上施打密封胶。其试验 方法为通行的“蝴蝶试验”。
b、这些指标按照标准进行检测,适用期、表干时间可以反映 固化速度是否正常,混合比例是否有波动。适用期的检验在生 产现场可以按照通行的“扯断时间”试验方法进行;下垂度、 涂胶密实度的检测可以观察施打于中空玻璃的密封胶。
西卡 西卡硅酮密封胶 SIKASIL N PLUS CN 技术手册说明书
产品技术说明书 版本(06/2013)Sikasil ®-N Plus CNC o n s t r u c t i o nSikasil ®-N Plus CN单组份中性硅酮密封胶产品简介Sikasil ®-N Plus CN 为单组分,湿气固化硅酮密封胶。
Sikasil ®-N Plus CN 在室温下通过与空气中的湿气反应实现固化,形成具有永久弹性的硅酮体,适用于室外及室内。
用途Sikasil ®-N Plus CN 在诸多基材上粘接及密封性能优异,适用于玻璃、金属、油漆面层、木材、瓷砖等材料间的接缝密封。
特征特征//优点在绝大多数基材上粘接无需底涂 抗UV 及耐候性能优异 无异味 无腐蚀产品产品数据数据形态颜色 黑色,白色,灰色 包装 590ml 软装 (20 支/箱) 储存储存条件储存条件//保质期原装密封包装,储存在(在+10℃和+25℃之间)干燥环境下,保质期为自生产日期开始的12个月,避免阳光直射。
技术数据主要化学成分 酸性硅酮,湿气固化 密度 ~ 1.25 kg/l(ISO 1183 )表干时间 ~ 10 分钟 (+23°C ,相对湿度50%) approx. 使用温度-40°C-120°C机械机械//物理性能拉伸强度 ~ 1.7 N/mm 2(+23°C / 50% r.h.) (ISO 8339) 撕裂强度撕裂强度 ~ 1.0 N/mm 2 (+23°C / 50% r.h.) (ISO 34) 邵A 硬度~ 25 (28 天后)(ISO 868)产品技术说明书 版本(06/2013)Sikasil ®-N Plus CNE -模量 ~ 0.5 N/mm 2(+23°C / 50% r.h.) (ISO 8339) 弹性恢复率> 80% (+23°C / 50% r.h.)(ISO 7389)系统信息 施工详述用量用量说明说明用量说明:接缝宽度 6 mm 9 mm 12 mm 接缝深度4 mm5 mm6 mm 300 ml 可施工长度~ 12.5 m~ 6.5 m~ 4 m基材要求 基材需干净、干燥、无尘、无油、结构均一,水泥浮浆需清理干净。
硅酮凝胶说明书
硅酮凝胶说明书引言:硅酮凝胶是一种常见的材料,广泛应用于许多领域。
本文将详细介绍硅酮凝胶的特性、制备方法、应用领域以及使用注意事项,帮助读者全面了解和正确使用硅酮凝胶。
一、硅酮凝胶的特性硅酮凝胶是一种无机凝胶材料,具有以下特性:1. 高温稳定性:硅酮凝胶可以在高温环境下保持稳定性,不会发生明显的体积变化或失去凝胶特性。
2. 低热导率:硅酮凝胶具有较低的热导率,可用于隔热材料的制备。
3. 高表面积:硅酮凝胶具有较高的比表面积,可以应用于催化剂的载体、气体吸附、分离等领域。
4. 可控孔径:硅酮凝胶的孔径大小可以通过制备方法和条件进行调控,具有一定的可定制性。
二、硅酮凝胶的制备方法硅酮凝胶的制备方法主要包括溶胶-凝胶法和模板法等。
1. 溶胶-凝胶法:该方法通常以硅源溶胶为主要原料,通过水解和缩合反应形成凝胶结构。
具体步骤包括溶胶制备、凝胶形成、成型和热处理等。
2. 模板法:该方法利用模板剂的存在,在硅源溶胶中形成孔道结构。
具体步骤包括模板剂的选择和溶胶-凝胶法制备过程。
三、硅酮凝胶的应用领域硅酮凝胶具有广泛的应用领域,以下列举几个常见的应用领域:1. 隔热材料:由于硅酮凝胶具有低热导率和高温稳定性,可用于制备隔热材料,如建筑保温材料、航空航天隔热材料等。
2. 催化剂载体:硅酮凝胶的高比表面积和可调控孔径使其成为理想的催化剂载体,可应用于化学反应中的催化剂制备。
3. 气体吸附与分离:硅酮凝胶的孔道结构可用于吸附和分离气体分子,如空气净化、天然气脱水等领域。
4. 生物医学领域:硅酮凝胶具有良好的生物相容性,可用于制备生物传感器、药物载体等。
四、硅酮凝胶的使用注意事项在使用硅酮凝胶时,需要注意以下事项:1. 避免长时间暴露在湿气环境中,以防止凝胶吸湿。
2. 注意避免与强酸、强碱等化学物质接触,以免发生化学反应。
3. 根据具体应用,选择合适的硅酮凝胶孔径大小和比表面积。
4. 在制备硅酮凝胶载体时,注意控制载体的孔径和分布,以满足特定催化剂的要求。
道康宁DC991硅酮密封胶说明书
道康宁DC991硅酮耐候密封胶——上海连宝道康宁991高性能硅酮密封胶特性1、高性能硅酮密封胶 50HM等级;满足美国ASTM C920-2010弹性封缝料规格标准 S型,NS类,50级、国标GB23261-2009 石材用建筑密封胶标准1 SR 50HM等级;2、中模量弹性体密封胶,特为敏感的天然石材、玻璃及金属板等材料设计生产;3、不会污染天然石材,并能有效减少在金属和玻璃面板上出现脏污垂流现象;4、中模量,高承受变位能力—在适当设计的接缝上可承受±50%原来接缝尺寸的变位;5、无需底漆即可与大部分建筑材料,如天然石材、玻璃、金属、瓷砖、含氟碳涂料表面涂层的材质及阳极电镀铝材具有优良的粘结力;6、优越的抗紫外线性能和耐候性能;7、良好的表面固化时间,有利于施工休整;道康宁991高性能硅酮密封胶说明1.道康宁991高性能硅酮密封胶对防止天然石材等多孔性材料的污染及大限度地减少金属板和玻璃的脏污垂流现象有良好效果,可用于新建或修缮建筑工程。
2.道康宁991高性能硅酮密封胶可与大多数建筑材料形成耐久,富弹性的防水接口。
经测试符合,美国ASTM C920-2010和国标GB23261-2009的各项性能指标。
3.储存方式:在27℃以下的干燥通风阴凉处贮存,贮存期为12个月。
4.使用前的准备工作:按照要求安装衬垫材料或接口填补剂,垫杆隔离物和胶带。
同接口相联的区域应采用遮蔽带,以确保密封胶密封线的整洁。
5.为确保在多孔性或非多孔性表面的粘结性,在工程开工前都应做粘结性测试。
6.注胶时应均匀施力,使胶充满被黏缝内然后修整:7.注意事项:不能作为结构密封胶使用;施工时应保持通风,因为密封胶需吸收空气中的水份固化。
8.切勿让小孩接触,若眼睛直接接触到未固化的胶黏剂应及时用大量的清水清洗并向医生求助。
双组份硅酮胶技术使用说明
双组份硅酮胶技术使用说明1. 前言嘿,朋友们!今天咱们聊聊一种神器——双组份硅酮胶。
这玩意儿可不是随便说说的,它在家装、汽车、电子产品等领域简直是个“百事通”。
听说过吧?这东西能帮你修补、密封、粘合,简直就像是工艺界的“超级英雄”。
所以,别犹豫了,快来一起看看怎么用它,让我们生活得更方便、更快乐吧!2. 什么是双组份硅酮胶?2.1 定义说白了,双组份硅酮胶就是由两部分组成的胶水,一般是“基础组分”和“固化剂”。
这两部分一旦混合,反应就开始了,慢慢地,它就能变成一种超强的固体粘合剂。
想象一下,就像是你和朋友一起煮火锅,材料混在一起后,最后出来的锅底可好吃了!而且,硅酮胶耐高温、抗紫外线,感觉就像它有了自己的超能力。
2.2 特点它的特点可真不少!首先,它的柔韧性好,不容易断裂,就像你身边那位百折不挠的朋友;其次,它的耐候性强,风吹雨打都不怕,简直是“风雨无阻”;最后,胶水本身不含有害物质,环保又安全,家里有小朋友的家庭尤为重要。
3. 如何使用双组份硅酮胶?3.1 准备工作开始之前,咱们先得做好准备。
首先,确保你的工作环境干净整洁,最好是在通风良好的地方。
这可不是说说而已,做工艺时,一些小细节可别忽视哦!接着,把要粘合的表面清理干净,确保没有灰尘、油污,就像洗脸前得先把脏东西洗掉,不然可就麻烦了。
3.2 混合与涂抹好了,准备工作做好了,就可以开始混合了。
取适量的基础组分和固化剂,按说明书上的比例混合,记得搅拌均匀哦,像调色盘上的颜料,得混合得当才能出彩。
然后,拿起刮刀或者枪头,均匀涂抹在要粘合的地方。
这里有个小窍门,别一次性涂太多,慢慢来,控制好用量,免得出现溢出,弄得一团糟。
4. 注意事项4.1 干燥时间使用完胶水后,耐心是关键!一般来说,它的干燥时间在24小时左右,这段时间最好别碰。
想象一下,你刚做完的蛋糕,心急想切,结果弄得乱七八糟,最后美味也没了。
所以,等待是个好品质!4.2 使用环境最后,使用双组份硅酮胶时,环境温度和湿度也很重要。
硅酮胶安全技术说明书
产品名称:硅酮胶版本:1.0编制日期:2018-07-15修订日期:2018-07-15第1部分化学品及企业标识化学品标识:中文名称:硅酮胶英文名称:Silicone Sealant企业标识:企业名称:浙江中天氟硅材料有限公司企业地址:浙江省衢州市柯城区高新技术产业园区孵化大楼内邮政编码:324000电话号码:+86-570-8598059传真号码:+86-570-8598000电子邮件:****************应急咨询电话:+86-570-8598050化学品的推荐用途和限制用途:推荐用途:主要用于干洁的金属、玻璃,大多数不含油脂的木材、硅酮树脂、加硫硅橡胶、陶瓷、天然及合成纤维,以及许多油漆塑料表面的粘接限制用途:无资料。
第2部分危险性概述紧急情况概述:可燃液体。
内装加压气体,遇热可能爆炸。
长期或反复接触(如果最终证明没有其他途径会产生这一危害,则说明接触途径)可能对器官造成伤害GHS危险性类别:易燃液体-类别4,皮肤腐蚀/刺激-类别2严重眼损伤/眼刺激-类别2B皮肤致敏-类别1生殖细胞致突变性-类别2生殖毒性-类别1A危害水生环境-急性危险-类别3GHS标签要素:产品名称:硅酮胶版本:1.0编制日期:2018-07-15修订日期:2018-07-15象形图:信号词:危险危险性说明:H227-可燃液体H315-造成皮肤刺激H320-造成眼刺激H317-可能造成皮肤过敏反应H341-怀疑可能造成遗传性缺陷H402-对水生生物有害防范说明:预防措施:P210-远离热源/火花/明火/热表面。
-禁止吸烟。
P280-戴防护手套/戴防护眼罩/戴防护面具P264-作业后彻底清洗P272-受沾染的工作服不得带出工作场地P260-避免吸入粉尘/烟气/气体/烟雾/蒸汽/喷雾。
P201-使用前获取特别指示P202-在读懂所有安全防范措施之前切勿搬动P273-避免释放到环境中事故响应:P370+P378-火灾时:使用干粉灭火器或泡沫灭火剂灭火P302+P352-如皮肤沾染:用大量肥皂和水清洗P333+P313-如发生皮肤刺激或皮疹:求医/就诊P305+P351+P338-如进入眼睛:用水小心冲洗几分钟。
道康宁产品应用技术手册
第一章 产品
第一章 产品
道康宁具有配套齐全的高性能硅酮结构密封胶,这些密封胶可以根据其各自具有的独特性能 被用于不同的应用中。具体的产品数据信息例如物理性能、应用和限制等都能在产品数据表 中找到或登录公司网站查询。
结构性装配硅酮密封胶
道康宁 993N结构性装配硅酮密封胶
道康宁产品应用技术手册
目录
道康宁产品应用技术手册
第一章 产品 ................................................................................................................................. 1 结构性装配硅硐密封胶 ......................................................................................................................................................................................................................... 2 中空玻璃专用硅酮密封胶 ................................................................................................................. 3 底涂液 ................................................................................................................................................. 4 表面处理指南 ..................................................................................................................................... 5
GE2000N硅酮密封胶说明书
GE SCS2000N硅酮耐候密封胶
适用于结构及非结构性玻璃幕墙间的错接或对接接点;
混凝土、石材及铝板间的伸缩接点;
GE Lexan Sheet 及聚碳酸酯板(Polycarbonate Sheet)户外采光棚的粘接;
阳极氧化或烤漆处理、镀锌的金属表面,陶制品及大部分塑胶板的粘接。
1. GESCS2000N中性硅酮耐候密封胶是一种中性固化、低模量的硅酮密封胶,专为建筑伸缩性接点密封而设计,同时适用于户外采光棚粘结和阳极氧化或烤漆处理、镀锌的金属表面,陶制品及大部分塑胶板的粘接。
2.采用标准:GE2000N中性硅酮耐候密封胶具有优异的耐候密封性能和位移性能,满足美国ASTM C-920、中国GB14683-2003、
JC/T882 -2001、日本JIS A5778各项性能指标。
3.储存方式:在27℃以下的干燥通风阴凉处贮存,贮存期为12个月。
4.使用前的准备工作:按照要求安装衬垫材料或接口填补剂,垫杆隔离物和胶带。
同接口相联的区域应采用遮蔽带,以确保密封胶密封线的整洁。
5.为确保在多孔性或非多孔性表面的最佳粘结性,在工程开工前都应做粘结性测试。
6. 注胶时应均匀施力,使胶充满被黏缝内然后修整:
7.注意事项:不能作为结构密封胶使用;使用时应保持通风,因为密封胶需吸收空气中的水份固化,同时会有挥发性气体产生。
8.切勿让小孩接触,若眼睛直接接触到未固化的胶黏剂应及时用大量的清水清洗并向医生求助。
DC tech_manual_asia[1] 道康宁 技术手册 硅酮胶
Introduction 2 Product Offering 3Sealants 3 GlazingStructuralWeatherproofing Sealants 3Sealants 4WeatherproofingPerformanceHighPrimers 4Guide 5 PreparationSurfaceGlazing 6 StructuralSiliconeIntroduction 6Structural Joint Design 6Structural Bite 7Deadload 7Glueline Thickness 8Structural Glazing Guidelines 10SubstrateSuitability 11 Project Review Services 12 Recommendations 12 ProductGlazing 14 ClassificationStructuralofSiliconeApplication Methods for Structural Glazing Systems 16SealantandApplication 19 PreparationSurfaceGlazing 24RemedialandReplacementApplications 25Structural-QualityAssuranceDocumentation 31 Weatherproofing 37 Introduction 37Joint Movement 37Joint Types 38Joint Design 39 JointConsiderations 40 MovingShear 41inmovementJointCure 41 MovementDuringBacker Materials 42EIFS Consideration 43Examples 43 WeathersealDesignApplication 51andSealantSurfacePreparationRemoval and Replacement of Existing Weatherseals 55Quality Assurance - General 57Documentation 61Dow Corning Asia Technical ManualIntroductionThis manual is intended to provide instructions to the development of a quality assurance program for the application of Dow Corning silicone sealants for structural and weathersealing systems. As construction projects vary in many aspects, such as design, customer requirements, and environment, this manual cannot be considered a comprehensive quality assurance program for all situations.Product OfferingStructural Glazing SealantsDow Corning has a full line of high performance silicone structural sealants. These sealants should be selected based upon the unique properties that each has for specific applications:DOW CORNING 983 Silicone Glazing and Curtainwall Adhesive/SealantDescriptionDOW CORNING 983 Silicone Glazing and Curtainwall Adhesive/Sealant for structural bonding of glass, metal, and other building components. DOW CORNING 983 Silicone Glazing and Curtainwall Adhesive/ Sealant cures to a high modulus adhesive sealant with excellent adhesion to a wide range of substrates. Available in black. DOW CORNING 993 Structural Glazing SealantDescriptionDOW CORNING 993 Structural Glazing Sealant for structural bonding of glass, metal, and other building components. Meets ASTM, ISO, GB and European standard for structural glazing applications. DOW CORNING 993 Structural Glazing Sealant cures to a high modulus adhesive sealant with excellent adhesion to a wide range of substrates. Available in black.DOW CORNING 995 Silicone Structural SealantDescriptionDOW CORNING995 Silicone Structural Sealant is a one-part, medium modulus, neutral curing silicone sealant with superior unprimed adhesion for structural glazing applications. Available in black, gray and white.DOW CORNING 795 Silicone Building SealantDescriptionDOW CORNING 795 Silicone Building Sealant is a one-part, medium modulus, neutral curing silicone sealant for structural glazing and weathersealing. Available in a wide variety of colors.Weatherproofing SealantsDow Corning has a full line of high performance weatherproofing sealants. These sealants should be selected based upon the unique properties that each has for specific applications:DOW CORNING 791 Silicone Weatherproofing SealantDescriptionDOW CORNING 791 Silicone Building Sealant is a one-part, medium modulus, neutral curing silicone sealant for general weathersealing applications. Available in a wide variety of colors.DOW CORNING 790 Silicone Building SealantDescriptionDOW CORNING 790 Silicone Building Sealant is a one-part, low modulus, neutral curing silicone sealant for use in high movement weathersealing applications. DOW CORNING 790 Silicone Building Sealant has excellentprimerless adhesion to concrete and most porous substrates. Available in a wide variety of colors.DOW CORNING 793T Silicone Glazing SealantDescriptionDOW CORNING 793T Silicone Glazing Sealant is a one-part, neutral curing silicone sealant for use in bolted glazing application or any non-structural applications that translucent color is required. Available only in translucent color.High Performance Weatherproofing SealantsDOW CORNING 991 Silicone Building Sealant H. P.DescriptionDOW CORNING 991 Silicone Building Sealant H. P. is a one-part, medium modulus, neutral curing silicone sealant designed specifically for the weathersealing of sensitive substrates where the aesthetic performance of the sealant is important. The sealant is intended for porous natural stone and panels systems where staining and residue rundown streaking must be minimized.PrimersDow Corning has a full line of high performance primers for sealants. Primers are used to enhance adhesion of sealants to specific substrates.DOW CORNING 1200 Prime CoatDescriptionDOW CORNING 1200 Prime Coat is a one part, solvent based, silane primer for use with Dow Corning Sealants in many applications. Available in clear and red.DOW CORNING 1205 Prime CoatDescriptionDOW CORNING 1205 Prime Coat is a one part, solvent based, film-forming primer for use with Dow Corning Sealant on plastics and other substrates.DOW CORNING Primer CDescriptionDOW CORNING Primer C is a one-part, film forming primer for use with Dow Corning Sealants on painted and plastic surfaces to promote fast adhesion.Surface Preparation GuideSubstrate DC791 DC795 DC991 DC983 DC993 DC995 BrickNP-1 NP-1 NP-1 NA NA NA ConcreteP-1 P-1 P-3 NA NA NA MortarP-1P-1P-3NANA NA EIFS NP-1 NP-1 NP-1 NA NA NA Granite NP-1 NP-1 NP-1 NP-1 NP-1 NP-1 Travertine P-1 P-1 P-1 NA NA NA Marble P-1 P-1 P-1 NA NA NA Limestone P-1 P-1 P-1 NA NA NA GlassNP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Ceramic Tile NP-2 NP-2NP-2NP-2 NP-2 NP-2 Reflective Glass NP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Acrylic PaintNP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Silicone Polyester NP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Polyurethane Paint NP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Polyester Powder Coating NP-2 NP-2 NP-2 NP-2 NP-2 NP-2 PVDF PaintNP-2P-2NP-2P-2P-2NP-2Alodine Aluminum NP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Anodized Aluminum NP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Mill Finish Aluminum NP-2NP-2NP-2NP-2NP-2 NP-2 Copper NP-2 NP-2 NP-2 NP-2NP-2NP-2LeadNP-2 NP-2 NP-2 NP-2 NP-2 NP-2 Stainless Steel P-1 P-1 NP-2 P-1 P-1 NP-2 Galvanized SteelP-1P-1NP-2 P-1P-1NP-2Surface Preparation GuideNote: Dow Corning must test all materials for adhesion in Structural applications Note: Field Adhesion Tests must be performed at the jobsite to verify sealant adhesion NP-1 = Abrade/DustNP-2 = Solvent Clean using the Two-Cloth Cleaning Method P-1 = Prime with Dow Corning 1200P-2 = Prime with Dow Corning 1200 or Primer C for Structural Applications/Test for Weatherseal ApplicationsP-3 = Prime with Dow Corning 1205 NA - Not Applicable or Not Tested DNU = Do Not UseStructural Silicone GlazingIntroductionSilicone structural glazing utilizes a high performance silicone sealant to attach glass, metal, or other panel materials to a metal frame in lieu of gaskets and mechanical attachments. The windload stresses on the facade are transferred through the structural silicone sealant to the structure of the building. The structural silicone sealant must maintain its adhesive and cohesive properties in order to support the panels under windload.Only silicone sealants are suitable for use in structural glazing applications. A considerable amount of time has been spent developing and testing silicone sealants to meet the needs of structural glazing application. Whenever a silicone sealant is used to structurally bond facade panels, a comprehensive quality control procedure must be established to assure the smooth, efficient, trouble-free completion of the project.Specific quality control procedures must be followed on all structural glazing projects in order to obtain a Dow Corning Structural Warranty.Structural Joint DesignStructural BiteStructural bite is the minimum width or contact surface of the silicone sealant on both the panel and the frame. The structural bite requirement is directly proportional to the windload on the building and the size of the glass. The higher the design windload and the larger the size of the glass, the greater the structural bite requirement. The structural bite must be sized appropriately to allow the windload on the glass or panel to be transferred to the structure. The structural bite for windload (live load) is calculated using the specified windload, glass or panel dimension and sealant design strength of 20 psi (140 kPa).Structural Bite CalculationFollowing is the calculation used to determine the required structural bite dimension:Bite (in) = 0.5 x short span length (ft) x windload (psf)12 in/ft x sealant design strength (20 psi)For example, a 4' x 8' lite of glass, exposed to a 60 psf windload requires a silicone bite of 1/2". Always round up to the nearest 1/16" and never round down.Bite (mm) = 0.5 x short span length (mm) x windload (kPa)strength(140kPa)designSealantFor example, a 1219 mm x 2438 mm lite of glass, exposed to a 2.87 kPa windload requires a silicone bite of 13 mm. Always round up to the nearest millimeter and never round down. DeadloadIn unsupported deadload designs, the weight of the panel places constant load on the sealant. Dow Corning structural sealants can support the weight of the panel or glass when used within the following guidelines:* For DOW CORNING795 Silicone Building Sealant, DOW CORNING 983 Silicone Glazing and Curtainwall Adhesive/Sealant, DOW CORNING 993 Structural Glazing Sealant and DOW CORNING 995 Silicone Structural Sealant the allowable deadload design strength is 1 psi or 7 kPa (700kg/m2)The weight of the panel divided by the total silicone contact area must not exceed 1psi, the deadload design strength of the sealant. Insulating glass unit manufacturers require deadload support for their insulating glass units.The deadload structural bite requirement (for 4 sided structural glazing case) is calculated asfollows:Bite= weight of glass in lbsglass perimeter in inches x sealant deadload design strength (1 psi)For example, a 4' by 8' lite of monolithic glass at a weight of 3.3 psf will have a weight of 105.6 lbs and a glass perimeter 288 inches. Based on a 1 psi deadload design strength, a bite of 3/8" is required.Bite= weight of glass in kgglass perimeter in meters x sealant deadload design strength (700 kg/m2)For example, a 1.219 meter by 2.438 meter lite of monolithic glass at a weight of14.8 kg/m2 will have a weight of 43.97 kg and a glass perimeter of 7.314 meters.Based on 700 kg/m2 deadload design strength, a bite of 9 mm is required.DEAD LOAD FORCEGlueline ThicknessProper glueline thickness facilitates the installation of sealant and allows reduced stress on the structural joint resulting from differential thermal movement. A minimum glueline of 6mm (1/4") is required, but as the structural bite increases, the glueline should be increased to allow the sealant to be applied easily and the panel to expand and contract when subjected to thermal movement. If structural bite requirements exceed 19mm (3/4") , the glueline thickness should be increased to a dimension greater than 6mm (1/4"). To facilitate filling of the structural joint, the bite to glueline thickness ratio should be maintained at 3 to 1 or less.All panels that are structurally glazed undergo repeated expansion and contraction due to variation in temperature. Glueline thickness must be properly designed to accommodate these movements. The thermal movement can be calculated for any panel or framing member if the length of the material, material type, (e.g. glass, aluminum) and coefficient of thermal expansion (CTE) is known.Joint movement for a particular panel can be calculated as follows:Movement (mm) = panel length (mm) x CTE (mm./mm./ o C) x temperature change (o C)For example, for a 2000mm by 2000mm high lite of glass fixed at the sill and a temperature change of 60o C, glass with a CTE of 9 x 10 -6 will show movement of 1.08 mm. Aluminum with a CTE of 23.2 x 10 -6 will move 2.78mm Differential movement between the glass and aluminum will be 2.78mm minus 1.08mm or 1.7mm.The dimension of glueline required (a) for the differential movement (b) can be calculated using the Pythagoras Theorem. Likewise, the allowable movement (b) for a particular glueline dimension (b) can also be calculated. The new glueline thickness (c) is limited by the movement capability of the sealant in shear in a structural joint configurationFor the example discussed above where differential movement of 1.7mm (b) is expected, and the sealant has an original glueline thickness of 6mm (a), the sealant will elongate to a new glueline thickness of 6.236mm (c). Extension of the sealant from 6mm to 6.236mm will be 4%.For DOW CORNING 995 Silicone Structural Adhesive and DOW CORNING 795 Silicone Building Sealant, maximum extension from thermal expansion is 15% in any structural silicone joint. For Dow CORNING 983 Silicone Glazing and Curtainwall Adhesive/ Sealant and Dow CORNING 993 Structural Glazing Sealant, maximum extension from thermal expansion is 10% in any structural silicone joint. The lower allowable movement capability in structural joints is due to the joint design, where the joint width, or glueline is less than the joint depth or structural bite. This is the reverse situation to weatherseals, which have higher movement capability.Note: Coefficients of Thermal Expansion Values for common building materials are available in the weatherproofing section of this technical manual.Note: The direction of the panel movement would also need to be considered. Consider whether thermal movement will take place in one direction due to the setting blocks preventing any downward movement of the glass panel or in the case of an unsupported system where the thermal movement can be taken by the glass in both directions. This will need to be taken into consideration when designing the sealant joint dimensions.Structural Glazing GuidelinesFollowing are general guidelines that should be followed for all structural glazing applications. All exceptions must be handled on a project specific basis and documented in writing by the Dow Corning Technical Service Representative.* The structural bite must be a minimum of 6mm (1/4").* The glueline thickness must be a minimum of 6mm (1/4").* The structural bite must be equal to or greater than the glueline thickness.* The bite to glueline ratio must be between 1:1 and 3:1.* The structural sealant joint must be able to be filled using standard sealant application procedures.* The joint design must allow the sealant exposure to air so that it can cure and obtain its ultimate physical properties.* The structural sealant joint must be fully cured and adhered prior to removing temporary fasteners in the field or moving curtainwall units in the shop.All exceptions to these guidelines must be reviewed and approved by a Dow Corning Technical Service Representative.Substrate SuitabilityWhen selecting aluminum substrates for structural glazing, the joint design and adhesion of the structural silicone must be considered. A flat surface with no gasket races, key slots, serrations or other irregularities is required. Some off-the-shelf extrusions may not be suitable for all structural glazing applications. The width of the extrusion must be adequate to achieve the calculated minimum structural bite with a suitable spacer attached.Extruded mill finish aluminum is not an appropriate surface for structural silicone application due to poor adhesion. The graphite lubricant used in the extrusion process causes a highly variable surface to which adhesion is not always predictable. Therefore, aluminum must have a minimum of an alodine finish for structural glazing applications. Anodizing and thermal set paints such as fluorocarbon and polyester powder coat, are also suitable aluminum finishes. In addition high-grade stainless steel (316) can also be specified, as verified by past adhesion tests and actual projects.Where substrates with non-typical surface finishes are specified, the customer should contact Dow Corning for specific advice. Discussion will need to take place on the durability of any substrate finish prior to its acceptance and use in structural applications. Independent confirmation of the substrates stability/durability may be required. Dow Corning's adhesion testing procedures, which confirms the adhesion characteristics of the sealant to the substrate, does not in any way verify the durability of that substrate. Contact your Dow Corning representative for further information.In addition to suitability of substrates for adhesion, gasket and accessory materialsmust be compatible with Dow Corning Sealants. The spacer material used in structural glazing must be fully compatible with the structural silicone. Based onhistorical testing, materials such as silicone, alcryn, polyurethane foam tape andmany vinyl extrusions are found to be compatible for full contact with structural silicone. Other materials such as EPDM, neoprene, santoprene, krayton and othersimilar organic materials are found to cause discoloration of light colored sealant.These materials are often approved for incidental contact with the structural siliconebut are not approved for full contact as a structural spacer material. Because slight discoloration of the lighter colored sealant will occur, typically only dark coloredsealants will be recommended for contact with these organic extrusions. Where discoloration is severe, even incidental contact may not be approvedProject Review ServicesDow Corning professionals are available to assist you in selecting the best sealant for your specific application. All Silicone Structural Glazing applications using DOW CORNING Adhesive/Sealants must be reviewed on a project specific basis by our technical service staff prior to any product selection. The review and testing must be successfully completed along with factory or site QA documentation before Dow Corning will issue a warranty. A project submission form is included with this manual for your use. Additional forms are available from any Dow Corning representative. The following services are offered by Dow Corning. Product RecommendationsAfter reviewing project drawings and specifications and having performed laboratory testing, Dow Corning will assist in the selection of the correct DOW CORNING sealant/primer and/or surface preparation for the specific application.Print ReviewGuidelines for silicone structural glazing details are provided in this section. Dow Corning must review all structural details before any approval or acceptance is given. Typical horizontal and vertical details, plus any non-typical details should be submitted for review. Also provide elevations indicating glass dimensions and design windload values for the building. Dow Corning has found that a few underlying principles are critical to consider in virtually all joint designs using silicone sealants. Dow Corning will review joints for compliance with these underlying design principles, provide suggestions or changes and/or identify limitations of the designs. It will also allow Dow Corning's technical staff to check that all components that will need to be tested as part of the project review have been supplied. This will include bonding substrates, spacers, setting blocks, gaskets etc.Adhesion TestingDow Corning will evaluate the adhesion of our product to materials representativeof those to be used on the job (i.e., glass, metal, masonry, composites, etc.) using amodified ASTM C794 peel adhesion test. All samples submitted for testing shouldbe a minimum of 200mm (8 in) in length. For example, for aluminum extrusions,supply one 200mm (8 in) sample for each sealant to be tested. For glass, onestandard 300mm by 300mm (12" by 12") sample is sufficient. Upon completion ofthis testing, Dow Corning will forward in writing, product recommendation, surface preparation, and primer recommendation (if needed). Testing takes 4 weeks fromreceipt of samples.Compatibility TestingChemically incompatible glazing accessories (gaskets, spacers, setting blocks, etc.) can lead to sealant discoloration and/or loss of sealant adhesion to the substrate. To ensure a product's suitability, Dow Corning tests the compatibility of job site representative accessory materials with its silicone sealants using ASTM Cl087. For each sealant to be tested, supply 100 mm (4 in.) minimum length of the gasket, spacer or setting block. Results of the compatibility test will be forwarded in writing. Testing takes 4 weeks from receipt of samples.Non-Stain TestingIf natural stone is being used on the project, Dow Corning can test and evaluate the performance of its sealants to determine if fluid in the sealant has the potential to migrate into porous substrates such as granite, marble, travertine and limestone. Job site representative samples of the stone need to be tested using a modified ASTM C1248 procedure. For each stone type and sealant to be tested, supply two samples of the dimension 25mm by 75mm (1" by 3") the thickness of the stone. Larger samples can be cut for testing. Testing takes approximately 35 days from receipt of samples.Other Test RequirementsDow Corning can accommodate special, non-standard testing requirements. Please consult your local Dow Corning Representative at the beginning of the project to determine whether Dow Corning is capable of such testing services. Dow Corning may charge a service fee for non-standard testing.Any review, recommendation, or statement, made on behalf of Dow Corning relating to an engineering design, architectural drawing, product formulation, end-use specification, or similar document is limited to the knowledge of product properties as determined by laboratory testing of material produced by Dow Corning. Any comments or suggestions relating to any subject other than such product properties are offered only to call to the attention of the engineer, architect, formulator, end-user or other person, considerations that may be relevant in his/her independent evaluation and determination of the appropriateness of such design, drawing, specifications, document or formula. Dow Corning assumes no responsibility for the commentsor suggestions relative to subjects other than such product properties, and expressly disclaims any warranty or responsibilities for them.Classification of Silicone Structural GlazingGlazingStructural2-SidedThis method uses structural silicone sealant to support the glass on two sides (eithervertical or horizontal edges) and utilizing mechanical support on the other two sides.Two-sided structural glazing can be fabricated in factory or on site.4-Sided Structural GlazingGlass is supported on all four sides with structural silicone. Structural silicone is used for bonding all four edges of the glass to the support frame, and the deadload can either be supported mechanically by a fin and setting block or by the structural silicone. It is generally recommended that four-sided structural glazing be performed in shop.Application Methods for Structural Glazing SystemsFactory (Shop) GlazingCurtain walls assembled in a factory environment are assembled in individual units. This system is referred to as unitized curtainwall. Factory construction of the curtainwalls provides a controlled environment where proper surface preparation and sealant application procedures can be maintained, and quality control programs can be implemented and documented. After the units are assembled and sealant has been allowed to fully cure and develop adhesion, units are shipped to the construction site where they are erected onto the building structure.Site (Field) GlazingSite glazing is a method that applies structural sealant directly at the construction site. Panels are attached to the mullions and transoms, which are already attached to the structure. Site glazing is suitable for 2-sided structural systems, but it is generally recommended that 4-sided systems are factory glazed.Temporary mechanical fasteners are required to firmly hold and prevent movement of the panels until the structural sealant is fully cured and adhered.NOTE: Special attention to cleaning and sealant application is required under the following conditions:* Occurrence of severe wind during application may cause undue stress on the curing structural silicone* Extremely high or low temperatures - optimum application temperature range is 10-35o C (50-95o F). For applications below 10o C (50o F), the potential for dew point and frost must be considered. For application in higher temperatures, sealant must not be applied when substrate temperatures are in excess of 50o C (120o F)* Rain contaminated joints - remove all moisture from the substrate surface, then solvent clean, prior to glazing.Structural Glass Systems (Bolted Glazing)The structural glass or bolted glass system generally has holes drilled at each corner of a glass element and a bolt is used to provide mechanical support for the glass and fixes the glass facade to a metallic structure which is secured to the main structural member of the building. A high quality silicone sealant is then used to provide the weatherseal between the glazing elements.As a result of recent developments in silicone sealant technology insulating glass units can also be installed using bolted glass technology. In this system a high performance silicone insulating glass sealant is used to produce the hermetic edge seal of the insulating glass units. Silicones are used due to their excellent resistance to ultra violet, which would attack organic based sealants. Furthermore, high performance, structurally capable silicone insulating glass sealants used as the hermetic edge seal can dispense with the need to drill the external glass element of the insulating glass unit. In this design the internal glass is bolted back to the main structure, while the external glass is structurally bonded to the inner glass around its perimeter.One of the latest developments in structural glass design is the elimination of the bolted system and the need to drill the glass by using structurally bonded patch plates as an alternative. Dow Corning's range of structural adhesive sealants enable the designer to do away with the cost of drilling of holes in glass and the use of very expensive stainless steel spider systems. This results in a system that has a reduced cost of manufacture, increased visibility and improved aesthetics.Structural Glass Systems are often referred to as structural glazing, which is often confused with structural silicone glazing, as both techniques use this generic term. Therefore, architects and specifiers should be sure of which system is being offered.Total Vision Systems (Fin Glazing)Total Vision or fin glazing is a system that is used to maximize the area of glass at the front of the building, reducing the visible mechanical fixings and increasing the unobstructed vision area of the facade. Total vision glazing is a two-sided structural glazing system, in which the glass is normally mechanically fixed at head and sill and the vertical edges are structurally attached to glass fins or mullions. The glass is bonded to the glass fin using Dow Corning structural silicone sealants. The structure is then made watertight using Dow Corning weathersealing sealants. This technique is widely used for lobbies, showrooms and racetracks where the unobstructed visibility is an advantage.Structural Attachment of Non-Glass MaterialsMaterials besides glass have been successfully attached to buildings with silicone sealants for many years. The benefits of structural silicone have been used with materials such as thin stone panels including granite or marble, ceramic tile, plastic and aluminum composite materials. In all cases, Dow Corning has performed extensive testing of specific materials prior to approving the use if its sealant as a structural adhesive. The durability of the non-glass material must be evaluated to determine its suitability for this application.Certain materials such as plastics may have high coefficients of thermal expansion that may cause undue stress on the structural silicone and/or bowing of the panels. Dow Corning must review all designs whether glass or non-glass materials where its sealants are used as structural adhesives.For aluminum composite materials that are mechanically attached around the perimeter and the sealant is used to attach an aluminum stiffener, Dow Corning permits glueline thickness dimensions of less than 6 mm (1/4"). In this application, there is a negligible amount of differential movement between the two aluminum components and shear stress on the sealant is minimal.。
CY230201 硅酮结构胶应用技术手册
十、 工程常见问题分析 ...................................................... 15 1. 常见问题及原因分析 .................................................... 15 2. 减少硅酮结构密封胶失效的方法 .......................................... 15
2
一、
硅酮结构密封胶介绍
硅酮结构密封胶(以下简称硅酮结构胶)是 强度高,能承受较大荷载,且耐老化、耐疲劳、 耐腐蚀,在预期寿命内性能稳定,适用于承受强 力的结构件粘接用胶粘剂。在幕墙中用于板材与 金属构架、板材与板材、板材与玻璃之间的结构 用粘接材料。如隐框玻璃幕墙中玻璃与铝框的结 构部位的粘结(见图 1) ,全玻幕墙中玻璃板块与 玻璃肋之间的粘结,以及中空玻璃的二道粘结密 封等 。
二、
硅酮结构胶分类
图 1 玻璃与铝框的结构部位粘结
1. 按组分分类
通常可分为单组分和双组分两大类。 1.1 单组分
单组分硅酮结构胶使用时可以直接将密封胶挤注到用胶部位,十分方便。一般是通过与空气的水分发 生反应进行固化的, 固化过程由表面逐渐向深层进行。 因此, 其深层固化速度相对较慢, 而且对施工深度、 宽度、环境温度、环境湿度等有一定要求,尤其受环境湿度影响较大。单组分因其使用简便等原因,一般 适用于现场作业。 1.2 双组分 双组分由 A(主剂) 、B(固化剂)两个组分组成,使用时需要先将两个组分混合均匀,然后在一定的 时间内将胶注入用胶部位,混合超过一定时间硅酮结构胶就无法使用。双组分硅酮结构密封胶必须使用双 组分混合设备方能进行施工,手工混胶一方面不均匀,另一方面也会裹入气泡,影响使用效果。因此,双 组分产品在使用时与单组分相比相对复杂。不过双组分硅酮结构密封胶两个组分混合均匀即可固化,在固 化过程中不需要与空气中的水分发生反应,表面与深层同时固化,深层固化速度快,而且固化速度可以通 过调节 A、B 组分的混合比例进行调整,不受施工环境、湿度影响。另外,采用双组分打胶机可以大大提 高效率,幕墙施工单位一般都采用双组分打胶机用于幕墙板块制作。
双组份硅酮中空玻璃密封胶使用手册
双组份硅酮中空玻璃密封胶使用手册
❖适用期检测方法:
拉断时间和主剂与固化剂的混合比例有关,同时可提供胶的 工作时间及胶内部深度固化时间的参考。拉断时间会因主剂与固 化剂的混合比例不同而有所不同。空气中水汽条件、温度、湿度 均会影响到拉断时间。
双组份硅酮中空玻璃胶使用手册
剥离玻剥离粘结性测试测试
对基材进行粘接性测试作为检验实际生产粘接性的一种方法。 • 质量控制所有的粘接性测试不能替代单元板片的切割,但只作为非 • 破坏方式下的连续性监控粘接性的一种可行方法。
取与中空玻璃同批次玻璃试验块,在制作中空玻璃时随工 艺对玻璃试验块进行清洗、干燥,在施打密封胶时随即在玻 璃试验块上施打密封胶,将试验块置于23±2℃的环境下, 双组分胶一般1~2天,待其固化后按图2进行粘结性试验,A) 为粘结破坏;B)为内聚破坏,内聚破坏才为合格。
事中控制!
双组份硅酮中空玻璃胶使用手册
双组份硅酮中空玻璃密封胶使用手册
❖ 解决措施: 4、不与聚硫胶及其它种类的密封胶掺合。
不同类别的密封胶组分不一样,固化体系也不尽相同,不能掺合。
双组份硅酮中空玻璃密封胶使用手册
四、 现象:硅酮密封胶与基材粘接不良。
双组份硅酮中空玻璃密封胶使用手册
❖ 原因分析: 1、 基材表面不干净,残留有油渍、污渍等。 2、A、B组分混合比例不正确。 3、养护时间不足。 4、底漆过多或失效。
适用期、表干时间的检测对中空玻璃制造过程密封胶质量的 控制非常有效,对密封胶的使用是否有异常可以起到快速反映。 涂胶密实度的检测是保证密封完整性。
事前预防!
双组份硅酮中空玻璃密封胶使用手册
❖ 混合均匀性检测方法: 检查A组份即主剂和和B组份即固化剂是否充分混合均匀可以通 过蝴蝶试验进行检测。蝴蝶试验在每次开机,包括间断后的开机都应进 行。
硅酮结构胶质量控制手册
硅酮结构胶装配质量控制手册梦想启动未来前言20世纪中期以来, 由于建筑材料的发展, 最初的混凝土墙体被玻璃, 铝板, 石材等各种材料所取代, 到目前为止幕墙系统得到了长足的发展。
建筑外墙最大的成功是将它的外观表现和使用功能得到完整的结合。
对于使用功能来讲, 多表现为其防雨水, 防气漏, 隔音, 保温等耐候性能。
检验建筑物外墙耐候性能好坏的一个重要因素就是密封胶的性能。
1947年××公司建立了世界上第一个有机硅生产基地, 进行全球性的密封胶研究、生产和销售。
半个多世纪以来, ××公司对于硅酮胶积累了丰富的经验, 不仅提供优质的产品, 而且提供客户完整的解决方案。
在所有结构胶、密封胶使用过程中,××公司都要求客户严格按照产品操作管理手册进行加工和管理。
对于不同项目的需求××公司提供以下服务:●××公司对工程进行合理化建议, 提供正确的密封胶。
●对密封胶的接口图纸设计进行审核。
针对客户的不同应用,××公司的技术人员能够提供适合的产品建议。
在选用××密封胶产品前,××技术人员会对工程内所有使用的硅酮结构胶, 耐候胶的应用进行审核, 在工程开始以前, 图纸审核及实验测试必须完成。
●××公司将对所有与密封胶接触的基材进行粘着性测试, 对与密封胶接触的双面胶条,橡胶垫块,泡沫棒等进行相容性测试, 对石材进行污染性测试。
●××公司对于具体工程进行现场技术支持。
结构胶的施工为了更好地确保结构胶的表现, 请严格遵守下列施工步骤。
同时请记录有关打胶细节, 这也是获得××公司质量保证的必要条件。
由于环境的千差万别, 此施工步骤并不能被视为唯一的质量保证标准, 具体情况请咨询××公司相关技术人员。
夏普化工透明改性硅酮胶M-NB MSC1-26说明书
产品分类单组分湿气固化型改性硅酮密封胶JSIA F☆☆☆☆商品名夏普化工透明改性硅酮胶M-NBMSC1-26夏普化工透明改性硅酮胶是一款单组分湿气固化型改性有机硅酮胶,具有高透明度。
本产品适用于防水密封,你想要利用材料的质地,如附在外墙配电箱、玻璃窗填缝、信箱报箱的防水处理;同时推荐用于木屋和木制室外阳台,可用于多种风格的防水处理。
■特点◇透明材质的改性硅酮胶施胶后与施工表面颜色一致。
与普通透明胶相比,透明度更高。
◇上涂性能良好无渗出性不会对上涂漆材造成渗出性污染。
◇施工部位保持整洁防水处理不易弄脏施工面。
■用途●外墙各种配件与墙面的粘接●防水处理例如配电箱、窗框、管道连接、信箱的防水●室内各种接缝处的粘接●想保持施工前原样的防水粘接。
■性状·性能·一般性状·固化速度(预计所需天数)·固化物特性(JIS K 6251哑铃状3号型)·基于JIS A 5758或JIS A 1439的性能使用底漆:底漆P32施工材料:铝■涂料兼容性如下数据仅供参考,因涂饰材料成分・生产厂家不同,其结果可能存在差异。
施胶前请按需确认兼容性。
商品名夏普化工透明改性硅酮胶M-NB 产品号MSC1-26主要成分改性硅酮树脂外观膏状颜色淡灰色粘性(Pa ·s )300~500/23℃有效期12个月施工温度5℃~35℃适应温度-20℃~80℃上涂性能良好固化条件固化皮膜厚度(mm)2510155℃、50%RH 26以上——23℃、50%RH 1.526—50℃、50%RH0.513650%拉伸应力(N/mm 2)0.70最大拉伸应力(N/mm 2) 3.00破坏伸长率(%)300硬度(邵尔A 硬度)35体积变化(%)5密度(g/cm 3) 1.05挤出性(s)23℃3~5表干时间(min)23℃30拉伸粘结性(JIS A1439)拉伸条件50%拉伸应力(N/mm2)最大拉伸应力(N/mm2)最大载荷伸长率(%)断裂伸长率(%)标准处理后23℃0.79 1.81152159加热后(80℃)23℃0.65 1.20143150浸水后23℃0.851.97136145分类通用例粘结性污染性薄浆型涂料树脂砂浆○◎弹性砂壁漆○◎*上涂水性涂料时,注意疏水效应・粘结性…与涂料的附着程度○:良好、△:一般×:差・污染性…涂料的软化或变色等污染情况◎良好、△略有污染,但不影响实际使用、×:差*上涂油性或含邻苯二甲酸氧化聚合型涂料时,可能无法固化。
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安全须知
本产品完全固化后无毒性,但在固化之前应避免与眼睛接触,若与眼睛接触,请用大量水冲洗,并找医生处理;
未固化的产品应避免小孩接触;
本产品在固化过程中释放醇类物质,在施工及固化区应注意通风,以免醇类物质浓度太大对人0在挤出接触空气后,即开始从表至里发生固化反应,表干时间在60min左右,完全固化产生最大粘结力在21天以后;
4.3如果不发生断裂,重复步骤4.2,直至发生突然断裂,并记录拉断的时间。
5
此程序用来检验结构胶与基材粘结能力及其发展情况。
5.1清洁待测试基材的表面;
5.2施用硅酮结构胶;
5.3让结构胶完全固化(7~21d)
5.4用手拉结构胶条,并观察是否发生内聚破坏或脱胶,并记录内聚破坏的百分比。
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6.1所有基材被粘部分都必须进行清洗,除去灰尘、油污或其它污物。
1.4使用本产品的用户必要时应尽早将幕墙的工程设计节点图纸送到本公司,由专人对使用结构胶的各节点进行审查,出具可以使用的审查报告后,方能进行施工。
1.5硅酮结构胶应在10~40℃,相对湿度40~60%的清洁环境条件下使用,养护固化区必须整洁,通风良好。若相对湿度低于50%应延长单元件的养护时间。
1.6在施工过程中必须具有完整的操作及试验记录。
HC-9000在两组分混合后,整个胶体开始发生交联反应,不受外界湿度的影响,其表干时间与两组分的混合比有关。
使用者注意
本手册提供的都是我们认为可靠的资料,由于实际情况千差万别,我们不可能对所有情况一概了解,所以不能保证我们的产品在某些用途与用法上的正确性和适用性。用户在使用产品之前应仔细阅读本手册,自行决定最佳使用方法。
2
2.1双组分结构胶在每天开泵注胶装配之前都应该进行蝴蝶测试,以检查是否混合均匀,方法见后文;在使用中每天都必须至少进行一次拉断时间测试。
2.2注胶完成后,应将单元件水平搬放到固定区进行养护,在搬放过程中不允许铝框与玻璃之间产生丝毫的位移和错位,否则会影响结构胶的粘结质量,单元件必须在静止和不受力的条件下养护足够的时间,其中单组分胶至少21天,双组分胶至少14天,以使结构胶产生足够的粘合力,经过切胶检测合格后的单元件产品才能装运和安装。
7
7.1正确使用底漆或助粘剂有助于使原本不易粘合的表面产生强而持续的密封粘结。它能够加速密封胶粘结的进展,特别是在低温施工的情况下。
7.2材料表面须清洁、干燥,用遮蔽胶带遮盖接口边缘。
7.3在小容器内倒入足够立即使用的底漆,确保拧紧原包装底漆盖子。
7.4用自然硬毛刷或一块干净的无绒毛棉布在接口表面涂上一层薄而均匀的底漆,对于难以抹到或粗糙的表面,可使用刷子。切勿倾倒或过多使用底漆。
安全须知
本产品完全固化后无毒性,但在固化之前应避免与眼睛接触,若与眼睛接触,请用大量水冲洗,并找医生处理;
未固化的产品应避免小孩接触;
本产品在固化过程中释放醇类物质,在施工及固化区应注意通风,以免醇类物质浓度太大对人体产生不良影响。
固化时间
HC-7000在挤出接触空气后,即开始从表至里发生固化反应,表干时间在60min左右,完全固化产生最大粘结力在21天以后;
相容性测试
泡沫条,双面胶条等装配用辅助材料如果与硅酮密封胶不相容,会导致密封胶变色,甚至丧失粘结性。为避免此类问题发生,客户可以将工程中选用的辅助材料邮寄(或以其他方式)给我们,本公司实验室为客户提供相容性测试服务,并将测试结果以书面形式呈交客户。
污染性测试
本公司可为客户提供污染性测试服务,客户可以将工程中选用的基材邮寄(或以其他形式)给我们,本公司实验室将进行污染性测试,并出具书面测试报告。
HC-9000的A组分用200L铁桶(净容量190L),B组分用20L塑料桶(净容量19L)包装。
贮存运输
27℃下阴凉、通风、干燥处,从出产之日起贮存9个月;
本产品为非危险品,可通过汽车、火车、轮船、飞机运输。运输中防日晒、雨淋,防撞击、挤压产品包装。
使用限制
不宜用于所有会渗出油脂、增塑剂或溶剂的材料,如浸油木材的表面;
HC-9000在两组分混合后,整个胶体开始发生交联反应,不受外界湿度的影响,其表干时间与两组分的混合比有关。
使用者注意
本手册提供的都是我们认为可靠的资料,由于实际情况千差万别,我们不可能对所有情况一概了解,所以不能保证我们的产品在某些用途与用法上的正确性和适用性。用户在使用产品之前应仔细阅读本手册,自行决定最佳使用方法。
6.2洗涤液应使用粘结性试验报告中注明的溶剂,在未指明时可用干净的异丙醇(IPA),甲乙酮(MEK)或二甲苯(XYLENE)等溶剂,其中后者毒性较大。
6.3基本的洗涤方法是“两块抹布法”:先用经溶剂润湿的不脱毛的纯棉白布擦洗基材的表面,在溶剂挥发之前立即用另一块洁净的同种抹布将溶剂和污物从基材表面擦去。不应使溶剂自然晾干,以免污物重新附着基材表面。
HC-9000的A组分为白色,B组分为黑色,混合后为黑色。
包装规格
塑料管装:每管300mL,每箱25管。
铝箔包装:每支590mL,每箱12支。
贮存运输
27℃下阴凉、通风、干燥处,从出产之日起贮存9个月;
本产品为非危险品,可通过汽车、火车、轮船、飞机运输。运输中防日晒、雨淋,防撞击、挤压产品包装。
使用限制
2.5必须保留所有单元件完整的装配记录(施工日期、结构胶的类型和批号等)和所进行的质量控制试验记录(蝴蝶测试、拉断时间测试、随批剥离粘结性测试、切装配框测试等)。
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该程序是为了确定双组分结构胶是否已彻底混合均匀。混合不均会引起产品性能的极大变化。
3.1将混合后的结构胶涂在白纸上;
3.2将纸折叠使结构胶平整;
1.7所有的单元件都必须具有识别标记,它们可用来追踪单元件制作人员、日期、密封胶的批号以及单元件在幕墙上的实际安装位置。
1.8用户在结构胶的使用过程中,若遇到任何质量或操作方面的问题,应以最快的方式通知本公司技术部,我们将提供热情、及时、周到的技术服务;若遇到重大质量问题,在未得到建议继续使用和通知前,应停止结构胶的使用。
8.2从玻璃与铝框之间的结构胶中间用刀切开,使玻璃与铝框分开,用刀切断结构胶并沿着基材水平方向切出长约75mm的胶条。
8.3用手紧握结构胶胶条以大于90º方向剥离,检查结构胶发生内聚破坏或脱胶的情况,记录内聚破坏的百分比。
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9.1所有结构性装配设计中的基材应送到本公司进行粘结试验,每一次试验需要用到宽度不小于25mm,长度不小于250mm的铝框型材4条,尺寸不小于150mm×150mm的玻璃或其他装饰板材2块。
9.2所有结构性装配设计中与结构胶接触的辅助材料如双面胶条,泡沫棒等都应送到本公司进行相容性试验,一次试验所用的每一种材料长度不小于600mm。
HC-7000不宜用于密不通风的场所,单组分硅酮胶需吸收空气中的水分固化;
不宜用于结霜或潮湿的表面;
材料表面温度低于4℃或高于40℃时,不宜施工。
技术服务
提供完整的产品技术资料
粘结性测试:
“华成硅”硅酮结构密封胶系列产品对多数建筑材料,如玻璃、阳极处理铝材、瓷砖、花岗石、砖石、木材、钢铁及大部分塑料具有优异的粘结性。但由于新的建筑材料不断出现和新的表面处理技术应用,我们无法保证密封胶对所有材料都适用,在某些情况下需对密封胶和工程中采用的材料进行粘结性测试。本公司实验室为客户提供粘结性测试服务,评定本公司的密封胶产品与客户工程上所选用的材料的粘结性能,并将测试结果、产品推荐、表面清理方式和是否使用底涂等内容以书面形式呈交客户。
7.5必须在底漆完全干化后,才能施用密封胶,否则会使粘结能力下降。底漆干化时间取决于环境温度和湿度。大多数底漆含有快速蒸发溶剂,因此干燥时间多介于15~30min之间。
7.6仅对将于1h之内进行粘结密封的表面施用底漆,当灰尘较多时,密封胶应在底漆干燥后立即施用。
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8.1从100个单元件中随机抽取一件,抽取试验的单元件上结构胶应完全固化。
主要用途
玻璃幕墙、铝板幕墙和玻璃采光顶及金属结构工程的结构粘结密封;
中空玻璃二道粘结密封;
其他许多建筑及工业用途。
符合标准
华成硅企业标准
企业标准符合甚至超过下列标准:
中国GB16776-1997建筑用硅酮结构密封胶
美国ASTMC1184-00硅酮结构密封胶
典型技术指标
颜色
HC-7000为黑色、灰色、白色或者用户要求的其他颜色;
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1.1所有使用“华成硅”硅酮结构胶的用户都必须直接到本公司或本公司指定的销售商处定购,以便获得质量可靠的产品,并得到强有力的技术援助。
1.2所有使用本产品的隐框、半隐框玻璃幕墙在设计制作及安装过程中都必须严格遵守JGJ102-96《玻璃幕墙工程技术规范》,胶缝的设计按规范所给的公式进行。
1.3所有幕墙设计中选用的基材和附件都必须送到本公司进行粘结性和相容性试验,在我公司出具可以使用的报告后才能投入实际施工。
3.3打开纸,检查结构胶,如果结构胶上出现白色条纹表示混合不充分。如果没有条纹出现则表明已充分混合,并在纸上记录试验日期及结构胶基胶与固化剂批号。
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此程序用来测定结构胶的固化速率。不正常的拉断时间(或长或短)表明混合过程中基胶/固化剂的比例存在问题。
4.1将小棍浸入混合后的结构胶,并开始计时;
4.2固化周期内每隔5min将小棍从结构胶内拉出并观察结构胶扯起的部分是否发生突然断裂;
典型技术指标
序号
性能
标准
实测值
试验方法
1
下垂度(垂直)
2
3
4
5
6
7
颜色
HC-7000为黑色、灰色、白色或者用户要求的其他颜色;
HC-9000的A组分为白色,B组分为黑色,混合后为黑色。
包装规格
HC-7000用350mL塑料筒(净容量300mL)、600mL复合袋(净容量592mL)或20L塑料桶(净容量18L)包装;