| Epoxies - 1 Component
INSULCAST 771
ONE COMPONENT, RIGID, HEAT CURE EPOXY SYSTEM
DESCRIPTION
INSULCAST 771 is a clear, one-component, rigid, heat cure epoxy system which exhibits high heat resistance.
| PROPERTIES-UNCURED: |
| Color, visual |
Clear |
|
| Viscosity, cps |
700 |
ASTM D 2393 |
| Specific Gravity |
1.17 |
|
| Pot Life @70°C, hours |
24 |
|
| Pot Life @100°C, hours |
1.5-2 |
|
| Pot Life @110°C, hours |
1-1.5 |
|
| Pot Life @115°C, hours |
.75 |
|
| Shelf Life @25°C, months |
3-4 |
|
| PROPERTIES-CURED: |
| PHYSICAL: |
| Hardness, Durometer (Shore D) |
88 |
ASTM D 2240 |
| Tensile Strength, psi |
8,700 |
ASTM D 638 |
| Tensile Elongation, % |
2.0 |
ASTM D 638 |
| Flexural Strength, psi |
12,000 |
ASTM D 790 |
| Coefficient of Thermal Expansion, °C |
77 x 10-6 |
ASTM D 790 |
| Thermal Conductivity, BTU-in/(ft2)(hr)(°F) |
1.8 |
|
| Heat Deflection Temperature, °C |
140 |
|
| Useful Temperature Range, °C |
-40 to 155*
|
|
| ELECTRICAL: |
| Dielectric Strength, volts/mil |
420 |
ASTM D 149 |
| Dielectric Constant, 1 KHz |
4.0 |
ASTM D 150 |
| Dissipation Factor |
0.01 |
ASTM D 150 |
| Volume Resistivity, ohm-cm |
4.0 x 1014 |
ASTM D 257 |
*NOTE: See cure schedule requirements to achieve high temperature resistance properties.
USE INSTRUCTIONS:
1. Preheat coil, transformer or unit for 1-2 hours @120°C -140°C. Allow to cool to approximately 50°C.
2. Any surfaces such as terminal leads or mounting brackets where bonding is impractical, should be coated with a suitable epoxy release agent.
3. Pour INSULCAST 771 into unit or tank. If dipping application, units should be drained prior to curing.
TYPICAL CURE SCHEDULES:
Dipped Units
6-8 hours @95°C - lowest shrinkage
3-5 hours @105°C
2-3 hours @120°C
Post cure 2 hours @150°C for optimum high temperature properties
Cast Units
8-10 hours @95°C plus 1-2 hours @105°C - 115°C - lowest shrinkage
STORAGE REQUIREMENTS:
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.
IMPORTANT:
The following supersedes any provision in your company's forms, letters and papers. AMERICAN SAFETY TECHNOLOGIES, INC. 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 AMERICAN SAFETY TECHNOLOGIES, INC. 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 AMERICAN SAFETY TECHNOLOGIES, INC. 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 AMERICAN SAFETY TECHNOLOGIES, INC. sole opinion, to justify such refund.
HEALTH CAUTION:
Avoid breathing possible fumes, mists and vapors which can cause severe respiratory damage. Use 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 fumes. Use of goggles, protective garments, rubber gloves, protective cream is required. If material gets into eyes, flush thoroughly with clear 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.
PLEASE REFER TO MATERIAL SAFETY DATA SHEET FOR FURTHER FIRST AID INFORMATION.
FOR CHEMICAL EMERGENCY
CALL CHEMTREC (DAY OR NIGHT) 800 424-9300.
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