3-Isocyanatopropyl(trimethoxy)silane

Product Overview

3-Isocyanatopropyl(trimethoxy)silane is a bifunctional organosilane that combines a reactive isocyanate group with hydrolyzable trimethoxysilyl functionality. This unique molecular architecture enables it to act as a molecular bridge between organic polymers and inorganic substrates, making it indispensable in high-performance adhesive, sealant, and coating formulations.

Specifications

Industrial Applications

This specialty silane is widely employed in advanced material systems requiring robust interfacial adhesion and environmental durability. Key applications include:

• As a crosslinker in one-component, moisture-curable polyurethane adhesives, sealants, and coatings, enabling ambient-cure performance without added catalysts.
• As an adhesion promoter in both one-part moisture-cured and two-part reactive urethane systems, significantly enhancing bond strength to metals, glass, and plastics.
• In silicone-based sealants and coatings to improve adhesion to organic substrates containing active hydrogen groups (e.g., –OH, –NH₂).
• Providing excellent wet adhesion and long-term resistance to thermal stress, UV exposure, and chemical degradation on inorganic surfaces such as aluminum, steel, and glass.

Stored in a cool, well-ventilated area away from moisture and heat sources, 3-Isocyanatopropyl(trimethoxy)silane is typically supplied in 200 kg drums or customized packaging to meet industrial-scale requirements.