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

Dow DOWSIL 866 Non-Slump Silicone Adhesive

Dow DOWSIL 866 Non-Slump Silicone Adhesive is a high-performance, acetoxy-cured silicone sealant designed for vertical and overhead applications. It offers excellent non-sag properties, rapid tack-free time, strong adhesion to glass, metal, and ceramics, and superior weather resistance. Ideal for architectural glazing and industrial bonding where slump resistance is critical.
  • dow dowsil 866 non slump silicone adhesive_9952055d
  • dow dowsil 866 non slump silicone adhesive_9952055d

Features Of Dow DOWSIL 866 Non-Slump Silicone Adhesive

  1. Non-slump formulation ensures zero sag or slump on vertical and overhead surfaces during cure.

  2. High-performance acetoxy-cure silicone chemistry delivers rapid surface tack-free time and strong adhesion to common construction substrates.

  3. Excellent resistance to weathering, UV exposure, and thermal cycling (-40 °C to +150 °C continuous service).

  4. Low modulus design accommodates joint movement without loss of adhesion or cohesive failure.

  5. Ready-to-use in standard sausage cartridges; no mixing required.

Typical Applications Of Dow DOWSIL 866 Non-Slump Silicone Adhesive

  1. Structural glazing perimeter sealing for insulating glass units (IGUs) in curtain walls.

  2. Non-structural bonding of aluminum composite panels (ACP), metal cladding, and stone veneers.

  3. Sealing and bonding of expansion joints in precast concrete façade systems.

  4. Interior architectural assembly of decorative metal trims, signage substrates, and suspended ceiling components.

Specifications Of Dow DOWSIL 866 Non-Slump Silicone Adhesive

Chemical TypeAcetoxy-cure silicone elastomer
Product FormThixotropic paste, single-component
AppearanceOpaque white or translucent beige, smooth uniform consistency
Primary ApplicationsNon-structural bonding and sealing in architectural façades and interior assemblies
Key FeaturesNon-slump, low modulus, fast surface cure, excellent substrate adhesion
BenefitsEnables vertical/overhead application without support; reduces labor and installation time
Curing MechanismMoisture-cured at ambient temperature
Shelf Life (unopened)12 months from date of manufacture when stored at ≤25 °C and ≤50% RH


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