Insulcast RTVS 8127 RTV Silicone Potting Compound

Insulcast RTVS 8127 is a rtv silicone potting compound that protects your electronics from heat, moisture, and vibration. Pour or pump it around the assembly and it cures to a tough, protective mass that keeps the finished part working in the field. Sold in multiple sizes and, where the system is two-part, in matched Part A and Part B.

Features

• Seals out moisture, dust, and contaminants
• Cushions components against shock and vibration
• Thermally conductive (0.75 W/mK) to carry heat away from hot-running parts
• Flame retardant (UL 94 V0) for fire-safety requirements
• Strong dielectric protection for reliable electrical isolation
• Backed by ITW Performance Polymers

Intended Uses

• 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

Physical Properties

• Mix ratio (by weight): 1:1
• Viscosity (Part A): 5,000 cP
• Pot life (25C): 3 hr
• Cure: 24 hr @25C / 2 hr @60C / 0.25 hr @120C
• Hardness: Shore A 55
• Service temp: -55 to 204 C
• Thermal conductivity: 0.75 W/mK
• Dielectric strength: 500 V/mm
• Flammability: UL 94 V0

Mix Ratio and Cure

Mix Part A and Part B at 1:1 by weight. Cure: 24 hr @25C / 2 hr @60C / 0.25 hr @120C. Degas under vacuum for a void-free pot in critical assemblies.

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