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

Shin-Etsu KBM-1403 p-Styryltrimethoxysilane

Shin-Etsu KBM-1403 p-Styryltrimethoxysilane is a reactive organosilane coupling agent featuring styrenic vinyl functionality and three hydrolyzable methoxy groups. It enhances interfacial adhesion between organic polymers and inorganic substrates like glass, silica, or metals—widely used in rubber reinforcement, composite resins, and functional coatings for improved mechanical strength and durability.
  • shin etsu kbm 1403 p styryltrimethoxysilane_69de72ca
  • shin etsu kbm 1403 p styryltrimethoxysilane_69de72ca

Features Of Shin-Etsu KBM-1403 p-Styryltrimethoxysilane

  1. Reactive bifunctional molecule featuring both vinyl (styryl) and hydrolyzable methoxy silane groups.

  2. Enables covalent bonding between organic polymers and inorganic substrates such as glass, silica, and metals.

  3. Enhances interfacial adhesion, mechanical strength, and moisture resistance in composite systems.

  4. Compatible with free-radical polymerization processes, allowing incorporation into acrylic, styrenic, and unsaturated polyester resins.

  5. Offers superior hydrolytic stability compared to triethoxysilane analogues due to optimized methoxy group reactivity.

Typical Applications Of Shin-Etsu KBM-1403 p-Styryltrimethoxysilane

  1. Adhesion promoter in rubber-to-metal bonding for automotive components.

  2. Surface modifier for silica and glass fillers in high-performance thermoset composites.

  3. Functional additive in UV-curable coatings and inks for improved substrate wetting and crosslink density.

  4. Interfacial coupling agent in fiber-reinforced plastics (FRP) and pultruded profiles.

Specifications Of Shin-Etsu KBM-1403 p-Styryltrimethoxysilane

Chemical Typep-Styryltrimethoxysilane
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous liquid, free from visible impurities
Molecular Weight236.3 g/mol
Boiling Point (760 mmHg)250–260 °C (decomposes)
Density at 25 °C1.09–1.11 g/cm³
Refractive Index (n20D)1.525–1.535
Storage ConditionStore under dry nitrogen, at 2–8 °C, protected from moisture and light


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