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

DOW DOWSIL SS-2802

DOW DOWSIL SS-2802 is a high-performance silicone sealant from Dow’s DOWSIL™ construction series offering excellent adhesion to glass, aluminum, and coated substrates. It cures rapidly via moisture cure with low VOC emissions, delivers superior UV resistance and long-term elasticity. Ideal for structural glazing and façade applications where durability and weatherproofing are critical.
  • dow dowsil ss 2802_55fee49f
  • dow dowsil ss 2802_55fee49f

Features Of DOW DOWSIL SS-2802

  1. High-performance silicone sealant with excellent adhesion to glass, aluminum, anodized metals, and painted surfaces without primer.

  2. Outstanding resistance to UV radiation, ozone, and extreme temperature fluctuations (–40 °C to +150 °C continuous).

  3. Low modulus formulation provides superior joint movement capability (±50% joint movement per ASTM C719).

  4. Non-corrosive, acetoxy-cure chemistry suitable for sensitive electronic and architectural applications.

  5. Meets ASTM C920 Type S, Grade NS, Class 50, Use T, M, O, G, A, and I requirements.

Typical Applications Of DOW DOWSIL SS-2802

  1. Structural glazing in commercial curtain walls and storefront systems.

  2. Weathersealing of aluminum-framed windows, skylights, and façade panels.

  3. Bonding and sealing of solar panel frames and photovoltaic mounting systems.

  4. Sealing of HVAC enclosures and precision instrumentation housings requiring long-term environmental stability.

  5. Interior and exterior architectural joints where high clarity, non-staining performance, and paintability are required.

Specifications Of DOW DOWSIL SS-2802

Chemical TypeAcetoxy-cure silicone elastomer
Product FormThixotropic paste, single-component
AppearanceTranslucent to light amber, smooth uniform consistency
Primary ApplicationsStructural glazing, architectural weathersealing, solar frame bonding
Key FeaturesPrimerless adhesion, UV/ozone resistance, low modulus, non-corrosive
Shore A Hardness (7 days, 23°C/50% RH)25–35
Cure Speed (Surface Dry Time)15–30 minutes (dependent on humidity)
VOC Content<10 g/L (ASTM D3960 compliant)


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