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

Wacker ELASTOSIL E43 N BLACK One-Component Silicone Sealant

Wacker ELASTOSIL E43 N BLACK is a one-component, heat-curing silicone sealant offering excellent adhesion to metals and plastics, high thermal stability up to 200°C, low compression set, and outstanding electrical insulation. Ideal for automotive, electronics, and industrial bonding/sealing applications requiring reliability under harsh conditions.
  • wacker elastosil e43 n black one component silicone sealant_ced7e8d6
  • wacker elastosil e43 n black one component silicone sealant_ced7e8d6

Features Of Wacker ELASTOSIL E43 N BLACK One-Component Silicone Sealant

  1. Fast room-temperature curing via moisture absorption from ambient air — no mixing or additional catalyst required.

  2. Excellent adhesion to common substrates including glass, aluminum, anodized metals, and many plastics without primer.

  3. High elasticity and permanent flexibility over a wide temperature range (–60 °C to +180 °C).

  4. UV-, ozone-, and weather-resistant formulation ensuring long-term performance in outdoor applications.

  5. Non-corrosive, neutral-cure chemistry — safe for sensitive electronics and non-metallic substrates.

Typical Applications Of Wacker ELASTOSIL E43 N BLACK One-Component Silicone Sealant

  1. Sealing and bonding in LED lighting housings and optical assemblies.

  2. Gasketing and encapsulation of automotive electronic control units (ECUs) and sensors.

  3. Hermetic sealing of industrial instrumentation and process equipment enclosures.

  4. Assembly of medical device housings requiring biocompatibility-compliant silicone materials.

  5. Structural bonding and sealing in solar photovoltaic module frames and junction boxes.

Specifications Of Wacker ELASTOSIL E43 N BLACK One-Component Silicone Sealant

Chemical TypeNeutral-cure, acetoxy-free, one-component addition-cure silicone
Product FormPaste-like, thixotropic sealant in cartridge
AppearanceJet-black, homogeneous paste
Primary ApplicationsElectronic encapsulation, optical sealing, industrial gasketing
Key FeaturesRoom-temperature vulcanization, high elongation (>400%), low compression set
BenefitsNo by-products, low shrinkage, excellent dielectric properties, RoHS compliant
Curing MechanismMoisture-cured (condensation-type)
Shelf Life (unopened)12 months at ≤25 °C in original sealed packaging


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