Bifunctional silane coupling agent with reactive isocyanate (–NCO) and hydrolyzable methoxy (–OCH₃) groups.
Enables covalent bonding between organic polymers (e.g., polyurethanes, epoxies) and inorganic substrates (e.g., glass, metals, minerals).
Improves adhesion, moisture resistance, and mechanical durability in hybrid composite systems.
Offers enhanced shelf stability compared to conventional isocyanatosilanes due to optimized molecular structure and purification.
Compatible with common solvents including acetone, ethyl acetate, and aromatic hydrocarbons for easy formulation integration.
Adhesion promoters in polyurethane-based sealants and structural adhesives for automotive glazing.
Surface modifier for silica and glass fillers in high-performance elastomers and thermoplastic composites.
Hybrid crosslinker in moisture-curing silicone-polyurethane hybrid coatings and encapsulants.
Interfacial enhancer in fiber-reinforced polymer (FRP) composites for wind turbine blades and aerospace components.
Functional additive in UV- and thermal-curable hybrid resins for advanced electronics encapsulation.
| Chemical Type | Gamma-isocyanatopropyltrimethoxysilane |
| Product Form | Liquid |
| Appearance | Clear, colorless to pale yellow liquid |
| Primary Applications | Adhesion promotion, filler surface modification, hybrid resin crosslinking |
| Key Features | Bifunctional (NCO + Si–OCH₃), hydrolytically stable, low volatility |
| Benefits | Enhanced interfacial adhesion, improved humidity resistance, extended pot life in formulations |
| Storage Conditions | Store under dry nitrogen at 15–25°C; protect from moisture and direct sunlight |
| Handling Precautions | Use in well-ventilated area; avoid contact with water, alcohols, or amines prior to application |
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