Name: Generic D-120 Silane Coupling Agent Tetrapropoxysilane (Propyl silicate)
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Generic D-120 Silane Coupling Agent Tetrapropoxysilane (Propyl silicate)

High hydrolytic stability due to sterically hindered propoxy groups, enabling extended shelf life and controlled reactivity.
Excellent compatibility with both organic polymers and inorganic substrates such as glass, silica, and metal oxides.
Low volatility and favorable handling safety profile compared to methoxy- or ethoxy-silanes.
Acts as an effective precursor for sol-gel derived silica coatings and hybrid organic-inorganic matrices.
Enables strong covalent interfacial bonding, improving mechanical strength and moisture resistance in composite systems.

Typical Applications Of Generic D-120 Silane Coupling Agent Tetrapropoxysilane (Propyl silicate)

Surface modification of fillers (e.g., silica, calcium carbonate) in rubber and thermoplastic composites.
Adhesion promotion in automotive sealants, structural adhesives, and aerospace bonding primers.
Hybrid sol-gel formulation for anti-corrosion and self-cleaning coatings on metals and glass.
Crosslinking agent in silicone-modified alkyds and hybrid acrylic-silica architectural coatings.
Reinforcement interface enhancer in fiber-reinforced polymer (FRP) composites and pultrusion resins.

Chemical Type	Tetrapropoxysilane (Propyl silicate)
Product Form	Clear, colorless to pale yellow liquid
Appearance	Homogeneous, mobile liquid at room temperature
Molecular Formula	C₁₂H₂₈O₄Si
Molecular Weight	280.4 g/mol
Density (25°C)	0.93–0.95 g/cm³
Refractive Index (20°C)	1.390–1.395
Flash Point (Closed Cup)	65–70°C

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