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

Evonik Dynasylan ETA Ethyltriacetoxysilane

Evonik Dynasylan ETA Ethyltriacetoxysilane is a reactive silane coupling agent enhancing adhesion between organic polymers and inorganic substrates like glass, metals, or minerals. It improves moisture resistance, mechanical strength, and durability in sealants, adhesives, and coatings. Widely used as a crosslinker in RTV silicones and primer formulations for automotive and construction applications.
  • evonik dynasylan eta ethyltriacetoxysilane_6f2a599b
  • evonik dynasylan eta ethyltriacetoxysilane_6f2a599b

Features Of Evonik Dynasylan ETA Ethyltriacetoxysilane

  1. Highly reactive triacetoxysilane offering rapid room-temperature condensation with moisture.

  2. Excellent compatibility with organic polymers, resins, and fillers for enhanced interfacial adhesion.

  3. Acts as an effective crosslinker and coupling agent in one-component (1K) silicone sealants and adhesives.

  4. Low volatility and favorable handling characteristics compared to traditional acetoxysilanes.

  5. Enables formulation of non-corrosive, acetic acid–free curing systems for sensitive substrates.

Typical Applications Of Evonik Dynasylan ETA Ethyltriacetoxysilane

  1. One-component moisture-curing silicone sealants for construction and automotive glazing.

  2. High-performance adhesives for bonding glass, metal, and painted surfaces.

  3. Reinforced elastomer composites requiring improved filler–polymer interaction.

  4. Weather-resistant coatings and protective surface treatments.

  5. Crosslinking agent in RTV-1 (room temperature vulcanizing) silicone formulations.

Specifications Of Evonik Dynasylan ETA Ethyltriacetoxysilane

Chemical TypeOrganofunctional silane – ethyltriacetoxysilane
Product FormLiquid
AppearanceColorless to pale yellow, clear liquid
Primary ApplicationsCoupling agent, crosslinker, adhesion promoter
Key FeaturesMoisture-curable, non-corrosive, low-odor, polymer-compatible
Storage ConditionsStore in tightly closed containers under dry conditions at 5–30 °C
Shelf Life12 months from date of manufacture when stored properly
Regulatory StatusREACH registered; compliant with EU CLP regulation (non-classified for major hazards)


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