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

Shin-Etsu KBM-5103 3-Acryloxypropyltrimethoxysilane

Shin-Etsu KBM-5103 is a 3-acryloxypropyltrimethoxysilane coupling agent from Shin-Etsu’s KBM series. It enhances adhesion between organic polymers and inorganic substrates like glass or silica. Widely used in UV-curable coatings, adhesives, and composites for improved crosslinking, durability, and moisture resistance. Highly reactive due to dual functionality: acrylate group for radical polymerization and methoxy silane for hydrolysis/condensation.
  • shin etsu kbm 5103 3 acryloxypropyltrimethoxysilane_22f489c1
  • shin etsu kbm 5103 3 acryloxypropyltrimethoxysilane_22f489c1

Features Of Shin-Etsu KBM-5103 3-Acryloxypropyltrimethoxysilane

  1. Bifunctional silane coupling agent with acrylate reactivity for UV-curable systems.

  2. Enables strong covalent bonding between organic polymers and inorganic substrates (e.g., glass, silica, metals).

  3. High hydrolytic stability due to methoxy groups offering controlled condensation kinetics.

  4. Low volatility and favorable handling characteristics compared to ethoxy analogues.

  5. Enhances adhesion, scratch resistance, and durability in radiation-cured coatings and composites.

Typical Applications Of Shin-Etsu KBM-5103 3-Acryloxypropyltrimethoxysilane

  1. UV-curable adhesives for optical bonding and electronic encapsulation.

  2. Hard-coat formulations for plastic lenses, displays, and touch panels.

  3. Reinforced composites using silica or glass fillers in acrylic-based matrices.

  4. Surface modification of pigments and nanoparticles for dispersion stability in radiation-curable inks.

  5. Primers for improving interfacial adhesion in fiber-reinforced polymer laminates.

Specifications Of Shin-Etsu KBM-5103 3-Acryloxypropyltrimethoxysilane

Chemical TypeOrganofunctional silane coupling agent
Product FormLiquid
AppearanceColorless to pale yellow clear liquid
Molecular FormulaC7H14O5Si
Functional GroupsMethoxy (–OCH3) and acryloyloxy (–OCOC(CH2)=CH2)
Primary ApplicationsCoupling agent for UV-curable resins, adhesives, coatings and composites
Key FeaturesBifunctional, hydrolyzable, radiation-reactive, substrate-adhesive
Storage ConditionStore under dry, cool conditions (<25°C), protected from moisture and light


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