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

DOW XIAMETER OFS-6945 Silane

DOW XIAMETER OFS-6945 Silane is a specialty organofunctional silane from Dow’s XIAMETER portfolio, designed as a coupling agent for silica-filled rubber compounds—especially in high-performance tires—to enhance filler dispersion, reduce rolling resistance, and improve wet traction and durability.
  • dow xiameter ofs 6945 silane_73f1fc3b
  • dow xiameter ofs 6945 silane_73f1fc3b

Features Of DOW XIAMETER OFS-6945 Silane

  1. Highly reactive alkoxy silane designed for efficient surface modification of inorganic fillers and pigments.

  2. Offers excellent hydrolytic stability in non-aqueous systems, enabling extended shelf life and reliable processing.

  3. Delivers strong covalent bonding between organic polymers and silica-based substrates, enhancing composite mechanical performance.

  4. Low volatility and favorable handling characteristics compared to chlorosilanes, supporting safer industrial use.

  5. Compatible with a broad range of thermoset resins including epoxies, phenolics, and polyurethanes.

Typical Applications Of DOW XIAMETER OFS-6945 Silane

  1. Surface treatment of silica, glass fibers, and mineral fillers in high-performance composites.

  2. Adhesion promotion in structural adhesives and sealants for automotive and aerospace assemblies.

  3. Performance enhancement of epoxy molding compounds used in semiconductor packaging.

  4. Moisture resistance improvement in fiberglass-reinforced plastic (FRP) laminates.

  5. Functionalization of nanosilica for advanced coatings requiring scratch resistance and durability.

Specifications Of DOW XIAMETER OFS-6945 Silane

Chemical TypeAlkoxy silane (3-glycidoxypropyltrimethoxysilane derivative)
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous liquid, free from visible particulates or phase separation
Primary ApplicationsFiller surface modification, adhesion promotion, moisture barrier enhancement
Key FeaturesGlycidoxy functionality for epoxy compatibility; methoxy groups for rapid condensation
BenefitsImproved composite strength, reduced moisture uptake, enhanced interfacial adhesion
Storage ConditionsStore in tightly sealed containers under dry, cool conditions (15–25°C), protected from moisture
Handling PrecautionsUse in well-ventilated areas; avoid contact with skin/eyes; refer to SDS for full safety guidance


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