道康宁OE-6635胶水资料

Product InformationLED MaterialsPOTENTIAL USES• Seal and protect LEDs•Discrete lenses for LEDs and optical partsAPPLICATION METHODS • Compatible with commercially available equipment •Dispensed or moldedDow Corning ® OE-66352-part, high viscosity, clear LED resin for fabricated partsTYPICAL PROPERTIESSpecification Writers: Please contact your local Dow Corning sales office or your Global Dow Corning Connection before writing specifications on this product.Property Unit Value Viscosity (Part A or Base)cP mPa-sec Pa-sec 3170031700 31.7Viscosity (Part B or Catalyst)cPmPa-sec Pa-sec 2850 2850 2.9Viscosity (Mixed)cPmPa-sec Pa-sec 5000 5000 5NVC (Non Volatile Content) %99.8Working Time at 25ºC (Pot Life - hours)hr 8Heat Cure Time @ 150ºC minutes 120Durometer Shore D- 33Transparency at 450 nm, 1 mm thick % 100Refractive Index - 1.54Impurity (Cl-)ppm 0.5Impurity (K+) ppm 0.2Impurity (Na+)ppm 0.2Shelf Life at 25ºC months12STORAGE AND SHELF LIFEShelf life is indicated by the “Use Before” date found on the product label. Dow Corning two-part products should be stored at or below 25°C (77°F). Containers should be kept tightly closed at all times to extend shelf life. Check the product label for specific storage conditions. DESCRIPTIONDow Corning® brand silicone LED (light emitting diode) encapsulants are designed to meet the challenging needs of the LED market, including high adhesion, high purity, moisture resistance, thermal stability and optical transmittance. Silicone materials can absorb stresses caused by thermal cycling inside the package, protecting the chip and the bonding wires. And with the electronics industry quickly moving toward lead-free processing, silicone encapsulants, with their demonstrated, excellent stability at reflow temperatures, are a natural fit for LED applications. PREPARING SURFACES Surfaces should be clean and dry. Recommended cleaning methods include Dow Corning® brand OS Fluids, naphtha, mineral spirits, methyl ethyl ketone (MEK) or other suitable solvent. Rougher surfaces tend to promote adhesion of silicones to other surfaces. PROCESSING/CURING These products are also compatible with commercially available equipment and industry standard processes. These materials can be dispensed or molded depending on the product and application. Dow Corning OS Fluids are recommended to clean cured or uncured silicone residue from application equipment. ADHESIONDow Corning LED materials are specially designed for adhesion to commonly used LED substrates. Surface treatments such as chemical etching or plasma treatment mayprovide a reactive surface andimprove adhesion to these types ofsubstrates. In general, increasing thecure temperature and/or cure timewill improve the ultimate adhesion.USEFUL TEMPERATURERANGESFor most uses, silicone encapsulantsand resins should be operational overa temperature range of -45 to 200°C(-49 to 392°F) for long periods oftime. However, at both the low- andhigh-temperature ends of thespectrum, behavior of the materialsand performance in particularapplications can become morecomplex and require additionalconsiderations. For low-temperatureperformance, thermal cycling toconditions such as -55°C (-67°F) maybe possible, but performance shouldbe verified for your parts orassemblies. Factors that mayinfluence performance areconfiguration and stress sensitivity ofcomponents, cooling rates and holdtimes, and prior temperature history.At the high-temperature end, thedurability of the cured siliconeencapsulants and resins is time andtemperature dependent. As expected,the higher the temperature, the shorterthe time the material will remainuseable.COMPATIBILITYCertain materials, chemicals, curingagents and plasticizers can inhibit thecure of addition cure adhesives. Mostnotable of these include: Organotinand other organometallic compounds,Silicone rubber containing organotincatalyst, Sulfur, polysulfides,polysulfones or other sulfurcontaining materials, unsaturatedhydrocarbon plasitcizers, and somesolder flux residues. If a substrate ormaterial is questionable with respectto potentially causing inhibition ofcure, it is recommended that a smallscale compatibility test be run toascertain suitability in a givenapplication. The presence of liquid oruncured product at the interfacebetween the questionable substrateand the cured gel indicatesincompatibility and inhibition of cure.HEALTH ANDENVIRONMENTALINFORMATIONTo support customers in theirproduct safety needs, Dow Corninghas an extensive Product Stewardshiporganization and a team of ProductSafety and Regulatory Compliance(PS&RC) specialists available in eacharea. For further information, pleasesee our website,, or consultyour local Dow Corningrepresentative.LIMITATIONSThese products are neither tested norrepresented as suitable for medical orpharmaceutical uses.LIMITED WARRANTYINFORMATION PLEASEREAD CAREFULLYThe information contained herein isoffered in good faith and is believedto be accurate. However, becauseconditions and methods of use of ourproducts are beyond our control, thisinformation should not be used insubstitution for customer’s tests toensure that Dow Corning’s productsare safe, effective, and fullysatisfactory for the intended end use.Suggestions of use shall not be takenas inducements to infringe any patent.Dow Corning’s sole warranty is thatthe product will meet the DowCorning sales specifications in effectat the time of shipment. Yourexclusive remedy for breach of suchwarranty is limited to refund ofpurchase price or replacement of anyproduct shown to be other than aswarranted. DOW CORNINGSPECIFICALLY DISCLAIMS ANYOTHER EXPRESS OR IMPLIEDWARRANTY OF FITNESS FOR APARTICULAR PURPOSE ORMERCHANTABILITY. DOWCORNING DISCLAIMSLIABILITY FOR ANYINCIDENTAL ORCONSEQUENTIAL DAMAGES.Dow Corning and Sylgard are registered trademarks of Dow Corning Corporation. All other trademarks or brand names are the property of their respective owners. ©2008 Dow Corning Corporation. All rights reserved. Printed in USA Form No. 11-1452A-01SAFE HANDLING INFORMATIONPRODUCT SAFETYINFORMATION REQUIRED FOR SAFE USE IS NOT INCLUDED IN THIS DOCUMENT. BEFORE HANDLING, READ PRODUCT AND MATERIAL SAFETY DATA SHEETS AND CONTAINER LABELS FOR SAFE USE, PHYSICAL AND HEALTHHAZARD INFORMATION. THE MATERIAL SAFETY DATA SHEET IS AVAILABLE ON THEDOW CORNING WEBSITE AT , OR FROM YOUR DOW CORNING REPRESENTATIVE, ORDISTRIBUTOR, OR BY CALLING YOUR GLOBAL DOW CORNING CONNECTION.For More InformationTo learn more about these and other products available from Dow Corning, please visit the Dow Corning Electronics website at / electronics.。