| Silicones - Condensation Cure
RTVS 12
GENERAL PURPOSE RTV SILICONE SEALANT/ENCAPSULANT
DESCRIPTION
RTVS 12 is a multi-purpose compound designed for use as an encapsulant, sealant, potting and mold making material. RTVS 12 exhibits excellent electrical properties, low temperature flexibility and high temperature stability. A variety of catalysts are available for different cure situations. (See RTVS Catalyst Selector Guide).
| PROPERTIES-UNCURED: |
| Color, visual |
Pink |
|
| Viscosity, cps |
15,000 |
ASTM D 1084 |
| Specific Gravity |
1.33 |
|
| Mix Ratio |
0.1 to 0.5 % CAT 2 (DBT) |
|
| Mixed Viscosity |
Varies with % of CAT-2 |
|
| Pot Life @25°C, min. |
15-120 |
|
| Shelf Life @25°C, months |
6 |
|
| PROPERTIES-CURED: |
| PHYSICAL: |
| Hardness, Durometer (Shore A) |
47 |
ASTM D 2240 |
| Tensile Strength, psi |
450 |
ASTM D 412 |
| Tensile Elongation, % |
175 |
ASTM D 412 |
| Tear Strength, Die B lb/in |
25 |
ASTM D 624 |
| Shrinkage, % |
0.2-0.5 |
|
| Coefficient of Thermal Expansion |
21 x 10-5
|
|
| Thermal Conductivity, BTU-ft/(ft2)(hr)(°F) |
0.18
|
|
| Thermal Conductivity, BTU-in/(ft2)(hr)(°F) |
2.16
|
|
| Service Temperature Range, °C |
-55 to 204
|
|
| ELECTRICAL: |
| Dielectric Strength, volts/mil |
500 |
ASTM D 149 |
| Dielectric Constant, 1 KHz |
3.4 |
ASTM D 150 |
| Dissipation Factor, 1 KHz |
0.02 |
ASTM D 150 |
| Volume Resistivity, ohm-cm |
10 x 1015 |
ASTM D 257 |
MIXING INSTRUCTIONS:
1. Weigh out the required amount of RTVS 12.
2. Measure the required amount of catalyst. See RTVS Catalyst Selector Guide.
3. Mix thoroughly, scraping both the bottom and sides of the mixing container.
4. Evacuate mixture @29 in Hg for 3-4 minutes to insure a void-free casting.
CURE SCHEDULES:
Overnight at room temperature (24 hours at 25°C).
Faster tack-free surfaces achieved using varied catalysts.
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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