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

Dow DOWSIL 737 Neutral Cure Silicone Sealant

Dow DOWSIL 737 Neutral Cure Silicone Sealant is a high-performance, acetoxy-free silicone adhesive sealant offering excellent adhesion to glass, aluminum, ceramics and plastics without corrosion. It cures rapidly at room temperature with low VOC emissions, delivering superior weather resistance, UV stability and long-term flexibility for architectural and industrial applications.
  • dow dowsil 737 neutral cure silicone sealant_36ff6745
  • dow dowsil 737 neutral cure silicone sealant_36ff6745

Features Of Dow DOWSIL 737 Neutral Cure Silicone Sealant

  1. Neutral-cure chemistry eliminates corrosive by-products, making it safe for sensitive substrates including metals, glass, and coated surfaces.

  2. Excellent adhesion to common construction materials without primer, including aluminum, anodized aluminum, glass, ceramics, and many plastics.

  3. High movement capability (±25% joint movement) ensures long-term performance in dynamic joints subject to thermal expansion and contraction.

  4. Superior weather resistance — UV stable, rain-resistant, and maintains elasticity across wide temperature ranges (–40 °C to +150 °C).

  5. Low VOC formulation complies with stringent global environmental regulations, including ASTM C1184 and ISO 11600 Class 25LM.

Typical Applications Of Dow DOWSIL 737 Neutral Cure Silicone Sealant

  1. Structural and perimeter glazing for commercial curtain walls and storefront systems.

  2. Sealing of insulating glass (IG) units, especially where neutral cure is required to protect edge seals and spacers.

  3. Weatherproofing of aluminum composite panels (ACP), metal cladding, and architectural precast concrete façades.

  4. Joint sealing in cleanroom environments and pharmaceutical facilities where low-emission, non-corrosive sealants are mandated.

  5. Interior and exterior expansion joints in high-rise buildings and infrastructure projects requiring durable, maintenance-free performance.

Specifications Of Dow DOWSIL 737 Neutral Cure Silicone Sealant

Chemical TypeAcetoxy-neutral silicone polymer
Product FormThixotropic paste, single-component
AppearanceOpaque white or translucent beige, smooth uniform consistency
Primary ApplicationsArchitectural glazing, IG unit secondary seal, metal and glass façade sealing
Key FeaturesNeutral cure, primerless adhesion, high movement capability, UV resistant
BenefitsNo substrate corrosion, reduced labor cost (no priming), long service life, low maintenance
Curing MechanismMoisture-cured at ambient temperature and humidity
Shelf Life12 months from date of manufacture when stored unopened at ≤25 °C


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