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

Wacker SEMICOSIL 988/1K Silicone Rubber

Wacker SEMICOSIL 988/1K is a one-component, addition-cure silicone rubber from Wacker’s SEMICOSIL series—designed for high-precision encapsulation and potting of electronic components. It offers excellent thermal stability, low shrinkage, superior adhesion to substrates, and fast room-temperature curing without by-products. Ideal for automotive, power electronics, and LED applications requiring reliability under harsh conditions.
  • wacker semicosil 988 1k silicone rubber_114f3536
  • wacker semicosil 988 1k silicone rubber_114f3536

Features Of Wacker SEMICOSIL 988/1K Silicone Rubber

  1. One-component, platinum-catalyzed addition-cure silicone rubber requiring no mixing — ready to use straight from the container.

  2. Excellent thermal stability with continuous service capability from –60 °C to +200 °C.

  3. Ultra-low compression set and high elasticity for long-term sealing performance under dynamic stress.

  4. Outstanding electrical insulation properties, including high dielectric strength and volume resistivity.

  5. Meets UL 94 V-0 flammability rating and complies with RoHS and REACH regulations.

Typical Applications Of Wacker SEMICOSIL 988/1K Silicone Rubber

  1. Encapsulation and potting of power electronics, such as IGBT modules and inverters.

  2. Sealing and bonding of LED lighting housings and optical components.

  3. Thermal interface materials (TIM) for heat-sensitive semiconductor assemblies.

  4. Insulating gaskets and vibration-damping elements in automotive EV powertrain systems.

  5. Protective coatings for sensors and control units exposed to harsh environmental conditions.

Specifications Of Wacker SEMICOSIL 988/1K Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormPaste-like, thixotropic one-component compound
AppearanceOpaque white to off-white viscous paste
Primary ApplicationsEncapsulation, potting, sealing, and thermal management
Key FeaturesRoom-temperature cure (with optional heat acceleration), low shrinkage, no by-products
BenefitsImproved process efficiency, excellent adhesion to metals/plastics, long shelf life (unopened)
Curing MechanismPlatinum-catalyzed hydrosilylation reaction
ComplianceRoHS 2011/65/EU, REACH SVHC-free, UL 94 V-0 certified


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

Your Name *

Your Email *

Your Phone

Country

Your Message *