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

Dow DOWSIL 994 Ultra Fast Bonding Base and Catalyst

Dow DOWSIL 994 Ultra Fast Bonding Base and Catalyst is a high-performance silicone adhesive system delivering rapid room-temperature cure, exceptional adhesion to diverse substrates, and outstanding thermal/chemical resistance—ideal for demanding industrial bonding, sealing, and assembly applications requiring speed and reliability.
  • dow dowsil 994 ultra fast bonding base and catalyst_6dbc2a60
  • dow dowsil 994 ultra fast bonding base and catalyst_6dbc2a60

Features Of Dow DOWSIL 994 Ultra Fast Bonding Base and Catalyst

  1. Ultra-fast room-temperature cure — achieves handling strength in under 60 seconds.

  2. Two-component silicone system with precise base-to-catalyst mixing ratio (10:1 by weight).

  3. Excellent adhesion to challenging substrates including metals, plastics, glass, and painted surfaces.

  4. Low modulus and high flexibility post-cure — maintains integrity under thermal cycling and vibration.

  5. UL 94 HB rated — meets basic flammability requirements for electronic and industrial assemblies.

Typical Applications Of Dow DOWSIL 994 Ultra Fast Bonding Base and Catalyst

  1. Fast-assembly bonding of electronic enclosures and housings.

  2. Structural attachment of automotive interior trim and sensors.

  3. Sealing and bonding of LED lighting modules and heat sinks.

  4. Repair and rework of medical device components requiring rapid turnaround.

  5. Industrial fixture assembly where high-speed production line throughput is critical.

Specifications Of Dow DOWSIL 994 Ultra Fast Bonding Base and Catalyst

Chemical TypePlatinum-cured addition-cure silicone
Product FormTwo-component liquid system (Base + Catalyst)
Appearance (Base)Translucent, low-viscosity liquid
Appearance (Catalyst)Clear to pale yellow liquid
Mix Ratio (Base:Catalyst)10:1 by weight
Cure MechanismRoom temperature addition cure (no by-products)
Shelf Life (Unopened)12 months at 25°C in original sealed containers
Primary ApplicationsFast structural bonding, sealing, and gasketing in electronics and transportation


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