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

DOW XIAMETER OFS-6925 Silane

DOW XIAMETER OFS-6925 Silane is a reactive organosilane coupling agent from Dow’s XIAMETER specialty silicones portfolio. It enhances adhesion between inorganic substrates (e.g., glass, metals) and organic polymers in composites, sealants, and coatings. Featuring methoxy groups and a vinyl functional group, it offers excellent hydrolytic stability and rapid cure kinetics without tin catalysts.
  • dow xiameter ofs 6925 silane_2fb41a01
  • dow xiameter ofs 6925 silane_2fb41a01

Features Of DOW XIAMETER OFS-6925 Silane

  1. Highly reactive alkoxy silane designed for rapid condensation with hydroxyl groups on surfaces and polymers.

  2. Offers excellent hydrolytic stability in formulated systems prior to cure, enabling extended shelf life.

  3. Delivers strong covalent bonding to glass, metals, and mineral fillers, enhancing interfacial adhesion.

  4. Low volatility and favorable handling characteristics support safe industrial processing.

  5. Compatible with a broad range of resins including epoxies, polyurethanes, acrylics, and silicones.

Typical Applications Of DOW XIAMETER OFS-6925 Silane

  1. Adhesion promoters in structural adhesives and sealants for automotive assembly.

  2. Surface modifiers for silica and calcium carbonate fillers in thermoset composites.

  3. Primers for glass-fiber reinforcement in wind turbine blade resins.

  4. Performance enhancers in high-durability architectural coatings and protective topcoats.

  5. Functional additives in moisture-cure polyurethane elastomers and casting compounds.

Specifications Of DOW XIAMETER OFS-6925 Silane

Chemical TypeAlkoxy silane (3-glycidoxypropyltrimethoxysilane derivative)
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
Density (25 °C)Approx. 0.97 g/cm³
Refractive Index (25 °C)1.42–1.44
pH (1% aqueous solution)4.0–5.5
SolubilityMiscible with common organic solvents; partially hydrolyzable in water
Storage Stability12 months unopened at 5–25 °C


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