| Epoxies - 2 Component
INSULCAST 42
ROOM TEMPERATURE CURE, EQUAL RATIO CASTING COMPOUND
AVAILABLE WITH REGULAR AND FAST CURE HARDENERS
DESCRIPTION
INSULCAST 42 is a low viscosity unique silicone-epoxy co-polymer formulated to withstand severe
thermal shock, low moisture absorption and excellent dielectric insulation.
INSULCAST 42 bonds well to most metals and plastics.
| PROPERTIES-UNCURED: |
| Color, visual |
BLACK |
|
| Viscosity, cps mixed |
12,000 - 18,000 |
ASTM D 1084 |
| Specific Gravity |
1.64 |
|
| Mix Ratio (by weight) |
100:10 |
|
| Mix Ratio (by volume) |
100:15 |
|
| Pot Life @25°C, minutes |
20-30 |
|
| Shelf Life @25°C, months |
6 |
|
| PROPERTIES UNCURED: |
| PHYSICAL |
| Hardness, Durometer, Shore A @25°C |
75-80 |
ASTM D 2240 |
| Hardness, Durometer, Shore D @25°C |
10-15 |
ASTM D 2240 |
| Tensile Strength, psi @25°C |
900 |
ASTM D 412 |
| Tensile Elongation, % @25°C |
175 |
ASTM D 412 |
| Tear Strength, Die B lb./in. @25°C |
40 |
ASTM D 624 |
| Shrinkage, % @25°C |
0.2-0.5 |
|
| Flammability, UL 94V-0 |
PASSES |
|
| Coefficient of Thermal Expansion °C |
45 x 10-6 |
|
| Thermal Conductivity, BTU in/(ft2)(hr) °F |
4.2 |
|
| Useful Temperature Range °C |
-55 to 125 |
|
| ELECTRICAL: |
| Dielectric Strength, volts/mil @25°C |
500 |
ASTM D 149 |
| Dielectric Constant, 1 KHz |
4.0 |
ASTM D 150 |
| Dissipation Factor 1 KHz |
0.0006 |
ASTM D 150 |
| Volume Resistivity, ohm-cm |
1.0x 1015 |
ASTM D 257 |
*Time to reach 10,000 cps - Gel-time dependent on casting size.
MIXING INSTRUCTIONS:
1. Pre-mix Insulcast 42 base before use to be sure any settled filler is reincorporated.
2. Weigh out amount of base component required. Weigh into the 10 parts base to one part of catalyst.
3. Mix thoroughly, scraping both the bottom and side of the mixing container.
4. To ensure void free castings Insulcast 42 may be placed in a vacuum chamber and at about 29 inches of mercury. Vacuum for 5-10 minutes. Caution - Excessive vacuuming will lengthen cure time.
5. Proceed to use material.
CURE SCHEDULES:
Important: Insulcast 42 must be cured at ambient temperatures prior to heat curing or cycling.
24 hours at 25oC or 8 hours at 25oC plus 2 hours @ 65oC.
STORAGE REQUIREMENTS:
NThe Part B is sensitive to moisture in the air. Keep Part B in a tightly closed container. Purge with dry
nitrogen in automatic filling equipment to prevent pre-mature skinning of the Part B. If precipitate forms in
Part B during storage, mix or shake container vigorously under Nitrogen to make uniform. Store material in a cool dry 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.
For Technical Bulletins Click Here...
|
