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

Dow DOWSIL Q5-8401 Adhesive Kit

Dow DOWSIL Q5-8401 Adhesive Kit is a two-part silicone adhesive system from Dow’s DOWSIL portfolio offering rapid room-temperature cure high bond strength and excellent flexibility for demanding industrial assembly applications across electronics automotive and aerospace sectors.
  • dow dowsil q5 8401 adhesive kit_f949324e
  • dow dowsil q5 8401 adhesive kit_f949324e

Features Of Dow DOWSIL Q5-8401 Adhesive Kit

  1. Two-part, platinum-cured silicone adhesive system offering rapid room-temperature cure with excellent depth of cure.

  2. High adhesion to challenging substrates including plastics, metals, glass, and silicone elastomers without primer.

  3. Outstanding thermal stability across –60 °C to +200 °C continuous service range.

  4. Low modulus and high elongation provide superior stress relief and vibration damping in dynamic assemblies.

  5. UL 94 V-0 rated for flame resistance; meets RoHS and REACH compliance requirements.

Typical Applications Of Dow DOWSIL Q5-8401 Adhesive Kit

  1. LED lighting module encapsulation and lens bonding in outdoor and high-heat environments.

  2. Automotive sensor assembly and electronic control unit (ECU) potting where thermal cycling resistance is critical.

  3. Medical device housing bonding requiring biocompatibility support and sterilization compatibility.

  4. Industrial power electronics bonding, including IGBT modules and power converters.

  5. Consumer electronics structural bonding for wearables and portable devices exposed to temperature extremes.

Specifications Of Dow DOWSIL Q5-8401 Adhesive Kit

Chemical TypePlatinum-cured addition-cure silicone
Product FormTwo-component kit (Part A: base, Part B: catalyst)
AppearancePart A: translucent viscous liquid; Part B: translucent low-viscosity liquid
Mix Ratio (by weight)10:1 (A:B)
Cure Schedule24 hours at 25 °C or 30 minutes at 100 °C
Shore A Hardness (7 days, 25 °C)35–40
Elongation at Break≥250%
Primary ApplicationsStructural bonding, encapsulation, and potting of electronics and precision assemblies


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