单组份热固化环氧树脂灌封胶

Description

SLONT 2781is a clear,one-component,flexible,heat cure epoxy system designed for coil

impregnation,and potting applications requiring low viscosity and minimal thermal stress.

Uncured

COLOR,VISUAL:Clear VISCOSITY,cps:1,350ASTM D2393

SPECIFIC GRAVITY:

1.04POT LIFE @70o

C.,hours:

24POT LIFE @100o

C.,hours:

1.5-2POT LIFE @110o

C.,hours:

1-1.5POT LIFE @115o

C.,hours:

3/4SHELF LIFE @25o

C,months:

3

Cured

PHYSICAL

HARDNESS,DUROMETER (Shore D):40ASTM D 2240TENSILE STRENGTH,psi:5,500ASTM D 638TENSILE ELONGATION,%:

40

ASTM D 638

COEFFICIENT OF THERMAL EXPANSION,o

C:

77x 10-6

THERMAL CONDUCTIVITY,BTU-in/(ft 2)(hr)(o

F):

1.8

USEFUL TEMPERATURE RANGE,o

C:

-55to 155*

DIELECTRIC STRENGTH,volts/mil:410ASTM D 149DIELECTRIC CONSTANT,1KHz:4ASTM D 150DISSIPATION FACTOR,1KHz:0.01

ASTM D 150VOLUME RESISTIVITY,ohm-cm:

3.4x 10

14

ASTM D 257

*NOTE:See Cure Schedule for requirements to achieve high temperature resistance properties.

Instructions

1.Preheat coil,transformer or unit for 1-2hours @120o

C -135o

C.Allow to cool to approximately 50o C.

2.Any surfaces such as terminal leads or mounting brackets were bonding is impractical,should be coated with a suitable epoxy release agent.

3.

Pour SLONT 2781into a unit or tank.If dipping application,units should be drained prior to

curing.

SLONT 2781

Hardener One Component,Flexible,Heat

Cure Epoxy System

Dipped Units

6-8hours@95o C–lowest shrinkage

3-5hours@105o C

2-3hours@120o C

*Post cure2hours@150o C for optimum high temperature properties.

One component epoxies are pre-catalyzed and have a limited shelf-life.Storage at elevated temperatures will result in a shortened shelf-life and premature gelation.Store material in a cool place.

08/2006

IMPORTANT:

The following supersedes any provision in your company’s forms,letters and papers.ITW POLYMER TECHNOLOGIES makes NO WARRANTY,WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE FOR THIS PRODUCT.No statements or recommendations contained in the product literature are to be construed as inducements to infringe any relevant patent,now or thereafter in existence.UNDER NO CIRCUMSTANCES SHALL ITW POLYMER TECHNOLOGIES BE LIABLE FOR INCIDENTAL,CONSEQUENTIAL OR OTHER DAMAGES FROM ALLEGED NEGLIGENCE,BREACH OF WARRANTY,STRICT LIABILITY OR ANY OTHER THEORY,ARISING OUT OF THE USE OR HANDLING OF THIS PRODUCT.The sole liability of ITW POLYMER TECHNOLOGIES for any claims arising out of the manufacture,use or sale of its products shall be to refund the buyer’s purchase price,provided such products have been demonstrated in ITW POLYMER TECHNOLOGIES sole opinion,to justify such refund.HEALTH CAUTION:

Avoid breathing possible fumes,mists and vapors which can cause severe respiratory e of NIOSH approved breathing apparatus is required for more than minimal exposure.Always work in areas with adequate ventilation to allow dissipation of polyamine and other chemical fumes,and where applicable, solvent e of goggles,protective garments, rubber gloves,protective cream is required.If material gets into eyes,flush thoroughly with clean water for twenty(20)minutes;then seek medical treatment. Avoid skin contact.Material can cause contact dermatitis.Always wash exposed areas immediately, using warm water and soap,followed by rinsing with clean water.Observe all safety precautions,It is important when using solvent based materials or solvents to keep away from open flame or ignition source.