| Silicones - Condensation Cure
RTVS 287
LOW TEMPERATURE FLEXIBILITY PRIMERLESS ADHESION
DESCRIPTION
RTVS 287 is a two part self-adhesive silicone compound with a low temperature brittle point. RTVS 287 is a methyl phenyl encapsulant formulated primarily for potting or encapsulating military and aerospace power supplies.
| PROPERTIES-UNCURED: |
|
Part A |
Part B |
|
| Color, visual |
Gray or Neutral |
Clear Amber |
|
| Viscosity, cps |
16,000 |
50 |
ASTM D 1084 |
| Specific Gravity |
1.42 |
.98 |
|
| Mix Ratio (by weight) |
100:2-3 |
|
| Mixed Viscosity, cps |
14,00 |
|
| Pot Life @25°C, hours |
30 |
|
| Shelf Life @25°C, months |
12 |
6 |
|
| PROPERTIES-CURED: |
| PHYSICAL: |
| Hardness, Durometer (Shore A) |
45-55 |
ASTM D 2240 |
| Tensile Strength, psi |
350 |
ASTM D 412 |
| Tensile Elongation, % |
160 |
ASTM D 412 |
| Tear Strength, Die B lb/in |
23 |
ASTM D 624 |
| Coefficient of Thermal Expansion |
20 x 10-5
|
|
| Shrinkage, % |
0.2 to 0.6
|
|
| Thermal Conductivity, BTU-ft/(ft2)(hr)(°F) |
0.18
|
|
| Thermal Conductivity, BTU-in/(ft2)(hr)(°F) |
2.16
|
|
| Useful Temperature Range, °C |
-115 to 260
|
|
| ELECTRICAL: |
| Dielectric Strength, volts/mil |
525 |
ASTM D 149 |
| Dielectric Constant, 1 KHz |
4.0 |
ASTM D 150 |
| Dissipation Factor, 1 KHz |
0.01 |
ASTM D 150 |
| Volume Resistivity, ohm-cm |
1.0 x 1015 |
ASTM D 257 |
MIXING INSTRUCTIONS:
1. Premix RTVS 287 in original container prior to use to reincorporate any filler that may have settled.
2. Weigh out required amount of Part A.
3. Measure 2-3 parts of Part B for each 100 parts of Part A.
4. Mix thoroughly, scraping the sides and bottom of the container.
5. Evacuate at 29 in. Hg for 3-4 minutes to ensure a void-free casting.
6. Pour into unit or mold.
CURE SCHEDULES:
Overnight at room temperature (12-16 hours at 25°C.)
NOTE: Accelerated cure accomplished by applying temperatures not exceeding 55°C.
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.
HANDLING PRECAUTIONS:
RTV silicone rubber base compounds and the curing agents for addition cure products are non-hazardous and practically non-toxic. Curing agents for condensation cure products contain tin soaps which can irritate eyes and skin of some individuals. Avoid contact with skin; if contact occurs, wash affected areas at once with soap and water. Avoid contact with eyes. In case of contact with eyes, flush with water for 15 minutes; call a physician.
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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