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

Wacker ELASTOSIL N294 One-Component Silicone Sealant

Wacker ELASTOSIL® N294 is a one-component, platinum-catalyzed silicone sealant offering excellent adhesion to glass, metals and plastics without primer. It cures rapidly at room temperature with low shrinkage, high elasticity and outstanding UV/weather resistance—ideal for precision bonding and sealing in electronics, optics and medical device assembly.
  • wacker elastosil n294 one component silicone sealant_2198c617
  • wacker elastosil n294 one component silicone sealant_2198c617

Features Of Wacker ELASTOSIL N294 One-Component Silicone Sealant

  1. Room-temperature vulcanizing (RTV) silicone sealant with moisture-cure mechanism.

  2. Excellent adhesion to common substrates including glass, aluminum, stainless steel, and painted surfaces without primer.

  3. High elasticity and permanent flexibility after curing—retains performance across -60 °C to +180 °C.

  4. Low modulus formulation minimizes stress on bonded joints and accommodates dynamic movement.

  5. Non-corrosive, acetoxy-cure chemistry suitable for sensitive electronic and optical assemblies.

Typical Applications Of Wacker ELASTOSIL N294 One-Component Silicone Sealant

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

  2. Assembly of sensors, control units, and automotive electronics requiring environmental protection.

  3. Hermetic sealing of medical device housings compliant with ISO 10993 biocompatibility guidelines.

  4. Encapsulation and potting of precision microelectronics and MEMS components.

  5. Gap-filling and vibration-damping in industrial control panels and instrumentation.

Specifications Of Wacker ELASTOSIL N294 One-Component Silicone Sealant

Chemical TypeAcetoxy-cure, one-component, RTV silicone
Product FormPaste-like, thixotropic paste in cartridge
AppearanceTranslucent, off-white to light beige
Primary ApplicationsElectronic encapsulation, optical sealing, sensor assembly
Key FeaturesLow modulus, high elongation (>200%), non-corrosive cure
Shore A Hardness (7 days, 23 °C/50% RH)15–20
Curing Speed (Surface Dry)~15–20 minutes
Storage Stability (unopened, 25 °C)12 months


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