Three Commonly Used Aminosilanes (Direct-to-Production Versions)

Three Commonly Used Aminosilanes (Direct-to-Production Versions)

SF-S550 (γ-Aminopropyltriethoxysilane)

General-purpose aminosilane, offering the best cost-performance ratio and widest applicability.

Suitable for: Epoxy systems, phenolic systems, glass fiber, mineral fillers (silica, talc, aluminum hydroxide/magnesium), metal substrates, anti-corrosion coatings, and general adhesives.

Recommended Dosage:

Coatings/Adhesives: 0.5%–2.0% of total formulation

Fiberboard Filler Surface Treatment: 0.3%–1.5% of filler weight

Glass Fiber Impregnation: Prepare as a 0.3%–1.0% aqueous solution.

SF-S792 (N-β-Aminoethyl-γ-Aminopropyltrimethoxysilane)

Double-amino type, with higher reactivity, stronger adhesion, and enhanced reinforcement.

Suitable for: High-end epoxy adhesives, structural adhesives, electronic potting compounds, fiberglass, glass fiber reinforced nylon/engineering plastics, and coatings requiring high water and salt spray resistance. Recommended Dosage: Adhesives/Electronic Adhesives: 0.5%–2.0% Coatings/Primers: 0.4%–1.5% Fillers/Fiberglass Treatment: 0.3%–1.2%

SF-S540 (γ-Aminopropyltrimethoxysilane)

Trimethoxy type, faster hydrolysis, higher polarity, suitable for rapid curing and water-based systems.

Suitable for: Water-based coatings, water-based adhesives, room temperature fast-curing epoxy systems, inorganic powder activation, and promoting adhesion to metal substrates.

Recommended Dosage:

Water-based systems: 0.3%–1.5%

Adhesives/Sealants: 0.5%–2.0%

Filler Modification: 0.2%–1.0%