Low Viscosity Silicone Potting Compound 1:1 Deep Section Waterproof for Electronic Components

Low Viscosity Silicone Potting Compound 1:1 Deep Section Waterproof for Electronic Components

This two-component addition-cure silicone potting compound features a low-viscosity, high-flowability formulation that penetrates narrow gaps and cures reliably in deep sections without voids. Supplied in a 1:1 mix ratio, it cures into a flexible grey elastomer at 50±5 Shore A that is waterproof and highly moisture resistant, providing durable protection for LED, PCB and battery electronics. With 0.76 W/m·K thermal conductivity, excellent electrical insulation and a wide -50°C to +250°C range, it seals components against moisture, humidity and thermal stress while releasing no heat or corrosive by-products.

Key Features

• Low Viscosity & High Flowability — thoroughly wets and fills fine gaps and dense component layouts
• Cures in Deep Sections — reliable through-cure even in thick or deep potting cavities, no trapped voids
• Waterproof & Moisture Resistant — tight sealing against water, humidity and damp environments (low moisture absorption 0.01-0.02%)
• Flexible 50±5 Shore A — elastic cushioning absorbs thermal expansion and mechanical stress
• Thermally Conductive 0.76 W/m·K — transfers heat away from power components for longer service life
• Excellent Electrical Insulation — dielectric strength 18-25 kV/mm, volume resistivity 1.0x10¹⁶ ohm.cm
• Low Shrinkage, No By-products — addition cure releases no heat or corrosive by-products, RoHS compliant
• Wide Temperature Range -50°C to +250°C — stable in both cold outdoor and hot operating conditions

Applications

• Deep-section potting of LED drivers and power modules
• PCB and control board waterproofing and moisture protection
• Battery pack and electronic component encapsulation
• Devices requiring gap filling and moisture-proof sealing

Supplied as Part A (grey fluid) and Part B (white fluid) in 10 KG, 20 KG and 50 KG sets with 6-month shelf life. Contact us for samples and OEM/ODM bulk pricing.