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

Domestic D-11 Di-Tert-Butoxydiacetoxysilane

Domestic D-11 Di-Tert-Butoxydiacetoxysilane is a high-purity silane coupling agent from Domestic’s D-series, featuring dual acetate and tert-butoxy groups for enhanced hydrolytic stability and adhesion promotion in silicone sealants and RTV formulations. It offers low volatility, controlled reactivity, and superior compatibility with fillers and polymers—ideal for moisture-cure systems requiring consistent performance and shelf-life extension.
  • domestic d 11 di tert butoxydiacetoxysilane_a0f06927
  • domestic d 11 di tert butoxydiacetoxysilane_a0f06927

Features Of Domestic D-11 Di-Tert-Butoxydiacetoxysilane

  1. Highly selective hydrolysis kinetics enabling controlled crosslinking in moisture-cure systems.

  2. Low volatility and reduced acetic acid emission compared to conventional diacetoxysilanes.

  3. Excellent compatibility with silicone polymers, alkyds, and acrylic resins.

  4. Enhanced shelf stability due to steric hindrance from tert-butoxy groups.

  5. Non-corrosive to metals and sensitive substrates under ambient storage conditions.

Typical Applications Of Domestic D-11 Di-Tert-Butoxydiacetoxysilane

  1. Moisture-curing sealants for architectural glazing and façade joints.

  2. Crosslinker in RTV-2 silicone elastomer formulations.

  3. Adhesion promoter in hybrid polymer coatings for metal and concrete substrates.

  4. Functional additive in UV/moisture dual-cure hybrid inks and adhesives.

  5. Stabilized silane coupling agent in mineral-filled composites and sealant pastes.

Specifications Of Domestic D-11 Di-Tert-Butoxydiacetoxysilane

Chemical TypeAlkoxy-acetoxysilane (bis(tert-butoxy)diacetoxysilane)
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
Density (25°C)1.02–1.06 g/cm³
Refractive Index (25°C)1.410–1.425
Flash Point (PMCC)≥ 75°C
Storage Stability≥ 12 months at ≤ 30°C, sealed container, dry conditions
Primary ApplicationsMoisture-cure sealants, RTV silicones, hybrid coatings, adhesion promoters


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