Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker POWERSIL INSULATOR FINISH One-Component Silicone Sealant

Wacker POWERSIL INSULATOR FINISH is a one-component, acetoxy-cure silicone sealant engineered for high-voltage electrical insulation. It offers excellent adhesion to porcelain, glass, and metals without priming, superior weather resistance, and stable dielectric properties up to 30 kV/mm. Fast surface cure, low shrinkage, and UV stability ensure long-term reliability in outdoor insulator applications.
  • wacker powersil insulator finish one component silicone sealant_e3f6f08b
  • wacker powersil insulator finish one component silicone sealant_e3f6f08b

Features Of Wacker POWERSIL INSULATOR FINISH One-Component Silicone Sealant

  1. Excellent electrical insulation properties with high dielectric strength and volume resistivity.

  2. Fast room-temperature curing via moisture-induced crosslinking, forming a flexible, durable silicone elastomer.

  3. Superior resistance to UV radiation, ozone, and extreme temperatures (–60 °C to +200 °C continuous).

  4. Low compression set and outstanding long-term elasticity for reliable sealing under thermal cycling.

  5. Non-corrosive formulation suitable for sensitive electronic components and metal substrates.

Typical Applications Of Wacker POWERSIL INSULATOR FINISH One-Component Silicone Sealant

  1. Electrical insulation and potting of high-voltage transformers and bushings.

  2. Sealing and encapsulation of power electronics, including inverters, converters, and busbar assemblies.

  3. Protective coating and edge sealing for photovoltaic module junction boxes.

  4. Insulating sealant for railway traction equipment and onboard power distribution units.

Specifications Of Wacker POWERSIL INSULATOR FINISH One-Component Silicone Sealant

Chemical TypeAcetoxy-cured silicone rubber
Product FormPaste-like, thixotropic one-component sealant
AppearanceOpaque white or grey paste
Primary ApplicationsElectrical insulation, potting, and environmental sealing in power infrastructure
Key FeaturesHigh dielectric strength (>20 kV/mm), UL 94 V-0 rated (after full cure)
BenefitsNo mixing required; excellent adhesion to metals, ceramics, and cured silicone without primer
Curing MechanismMoisture-curing at ambient temperature (surface cure: ~1 mm/day)
Storage Stability12 months unopened at ≤25 °C in original sealed packaging


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *