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

Dow DOWSIL EA-3500 Silicone Sealant

Dow DOWSIL EA-3500 Silicone Sealant is a high-performance, acetoxy-cure silicone adhesive sealant engineered for durable bonding and sealing of glass, metal, and plastics. It offers rapid cure, excellent adhesion without primer, UV resistance, and stable performance from -40°C to 200°C. Ideal for architectural glazing, automotive assembly, and electronics encapsulation.
  • dow dowsil ea 3500 silicone sealant_a5af48b1
  • dow dowsil ea 3500 silicone sealant_a5af48b1

Features Of Dow DOWSIL EA-3500 Silicone Sealant

  1. High-performance, acetoxy-cure silicone sealant offering rapid skin-over and excellent adhesion to glass, aluminum, and common construction substrates.

  2. Low modulus formulation provides superior elasticity and long-term movement capability (±25% joint movement).

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

  4. Non-staining and non-corrosive—safe for use with sensitive metals and anodized aluminum.

  5. Meets ASTM C920 Type S, Grade NS, Class 25, Use NT, T1, M1, O1 for architectural glazing applications.

Typical Applications Of Dow DOWSIL EA-3500 Silicone Sealant

  1. Structural and perimeter sealing of insulating glass units (IGUs) in commercial façades.

  2. Weatherproofing of curtain wall systems and aluminum-framed windows.

  3. Joint sealing in precast concrete cladding and metal composite panels.

  4. Secondary sealing of solar panel frames and photovoltaic mounting systems.

  5. General-purpose bonding and sealing in HVAC enclosures and industrial enclosures requiring elastomeric performance.

Specifications Of Dow DOWSIL EA-3500 Silicone Sealant

Chemical TypeAcetoxy-cure silicone polymer
Product FormThixotropic paste, single-component
AppearanceOpaque white or clear, smooth uniform consistency
Primary ApplicationsArchitectural glazing, curtain walls, IGU secondary seal, metal and concrete joint sealing
Key FeaturesRapid cure, high elasticity, UV stable, non-corrosive, low modulus
BenefitsReduced assembly time, long-term joint integrity, compatibility with sensitive substrates, no primer required on most surfaces
Shelf Life12 months from date of manufacture when stored unopened at ≤25 °C in dry conditions
VOC Content<5 g/L (meets South Coast AQMD Rule 1168)


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