Description

Silane,(3-Isocyanatopropyl)Dimethoxymethyl is a bifunctional organosilane coupling agent that combines a reactive isocyanate group with hydrolyzable methoxysilane groups. This unique structure makes it a critical component for creating strong, durable bonds between organic polymers and inorganic substrates. It is essential for manufacturers in the adhesives, sealants, coatings, and composite materials industries seeking to enhance product performance, adhesion, and longevity.

Application

• Adhesives & Sealants: Acts as a powerful adhesion promoter, particularly for bonding difficult substrates like metals, glass, and plastics to various polymers.
• Surface Modification: Used to functionalize the surface of inorganic materials (e.g., silica, glass fibers, metals) to improve compatibility and bonding with organic resins.
• Polymer Modification: Incorporated into polyurethane, epoxy, or acrylic systems as a crosslinking agent or to introduce silane functionality for improved moisture resistance and mechanical properties.
• Composite Materials: Enhances the interfacial adhesion between reinforcing fibers (glass, carbon) and the polymer matrix, leading to composites with superior strength and durability.
• Coatings & Inks: Improves the adhesion, scratch resistance, and weather stability of protective coatings, paints, and printing inks on non-porous surfaces.
• Rubber & Tire Industry: Used as a coupling agent in silica-filled rubber compounds to reduce rolling resistance and improve wet grip in tire manufacturing.

Basic Information

Product Name	Silane,(3-Isocyanatopropyl)Dimethoxymethyl
CAS No.	26115-72-0
Molecular Formula	C8H17NO4Si
Molecular Weight	219.31 g/mol
Synonyms	3-Isocyanatopropyldimethoxymethylsilane; Dimethoxymethyl(3-isocyanatopropyl)silane; (3-Isocyanatopropyl)methyldimethoxysilane; Methyldimethoxy(3-isocyanatopropyl)silane; Silane A-Link 35 (Trade Name); Isocyanatopropylmethyldimethoxysilane; γ-Isocyanatopropylmethyldimethoxysilane
EINECS	Contact for details

Quality Control

Our Silane,(3-Isocyanatopropyl)Dimethoxymethyl is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay, purity, and isocyanate content determination, to ensure consistent performance and reliability for your formulations. Certificates of Analysis (COA) documenting full specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation from moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (NCO Content)	≥ 95.0%
Purity (GC)	≥ 97.0%
Density (at 20°C)	~1.01 g/cm³
Refractive Index (n20D)	~1.420

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.