Description

Dif CAS NO 27737-75-3 is a specialized organosilicon compound, specifically a difunctional silane, valued for its role as a key coupling agent and surface modifier. Its bifunctional structure enables it to form durable bonds between inorganic materials and organic polymers, significantly enhancing composite performance. This product is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced materials and electronics, seeking to improve adhesion, mechanical strength, and environmental resistance.

Application

• As a coupling agent in mineral-filled composites (e.g., glass fiber, silica, talc) to improve interfacial adhesion and mechanical properties.
• As a surface treatment agent for pigments and fillers to enhance dispersion and stability in polymer matrices.
• In the formulation of adhesives and sealants to promote bonding to difficult substrates like glass, metals, and ceramics.
• As a crosslinking agent or modifier in silicone rubber and other elastomers to tailor properties such as hardness and tensile strength.
• In the production of moisture-curable systems, where it acts as a crosslinker upon exposure to atmospheric humidity.
• For primer formulations to prepare surfaces for subsequent coating or bonding applications.
• In electronics encapsulation and potting compounds to improve adhesion and moisture resistance.

Basic Information

Product Name	Dif CAS NO 27737-75-3
CAS No.	27737-75-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Difunctional Silane; Silane Coupling Agent; Organofunctional Silane; Bis(triethoxysilyl)ethane (common representative structure for this CAS category); 1,2-Bis(triethoxysilyl)ethane; BTESE; Ethylene bridged silane; Adhesion Promoter; Surface Modifier
EINECS	Contact for details

Quality Control

Our Dif CAS NO 27737-75-3 is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. We provide comprehensive Certificates of Analysis (COA) with key parameters such as assay, identity, and impurity profiles. Our quality commitment supports compliance with relevant industry standards for material traceability and reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 95.0%
Density (at 20°C)	Contact for details
Refractive Index (n20D)	Contact for details

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