Description
Insulcast RTVS 8127 is a two-part, thermally conductive RTV silicone potting compound for protecting heat-generating electronics from moisture, vibration, and thermal stress. It pours or pumps around an assembly and cures to a tough, flame-retardant mass that carries heat away from hot-running components and keeps the finished part working in the field.
Insulcast RTVS 8127 Benefits
- Thermal conductivity of 0.75 W/mK moves heat away from power supplies, coils, and other hot-running parts
- UL 94 V0 flame retardant for fire-safety requirements
- Dielectric strength of 500 V/mm for reliable electrical isolation
- Seals out moisture, dust, and contaminants
- Cushions components against shock and vibration
- Wide service range of -55 to 204 C
Common Applications
- Potting power supplies, transformers, and coils
- Sealing sensors, connectors, and control modules
- Protecting LED and lighting electronics
- Encapsulating medical device electronics
- EV and e-mobility power electronics
Typical Properties
- Mix ratio (by weight): 1:1
- Viscosity (Part A): 5,000 cP
- Pot life (25 C): 3 hr
- Cure: 24 hr at 25 C, 2 hr at 60 C, 0.25 hr at 120 C
- Hardness: Shore A 55
- Service temperature: -55 to 204 C
- Thermal conductivity: 0.75 W/mK
- Dielectric strength: 500 V/mm
- Flammability: UL 94 V0
Surface Prep and Use
Mix Part A and Part B at 1:1 by weight until uniform. Pour or pump the mixed compound around the assembly, then degas under vacuum for a void-free pot in critical work. Cure 24 hr at 25 C, 2 hr at 60 C, or 0.25 hr at 120 C.
Ordering and Product Support
Insulcast RTVS 8127 is part of our encapsulants and potting compounds line, manufactured by ITW Performance Polymers.
Call (800) 220-1966 or email [email protected] for pricing, lead time, and technical support.
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