Description

3-Isocyanatopropyl-[3-Isocyanatopropyl(Dimethyl)Silyl]Oxy-Dimethylsilane is a specialized bifunctional organosilicon compound featuring dual isocyanate groups, designed to serve as a high-performance coupling and crosslinking agent. Its unique structure enables it to form robust covalent bonds between organic polymers and inorganic substrates, significantly enhancing adhesion, mechanical strength, and chemical resistance in composite materials. This product is essential for manufacturers in the advanced adhesives, sealants, coatings, and specialty silicone elastomer industries seeking to improve product durability and performance.

Application

• Adhesive & Sealant Formulation: As a key adhesion promoter and crosslinker in high-performance polyurethane and silicone-based adhesives and sealants for automotive, aerospace, and construction applications.
• Surface Modification & Primers: For chemically priming glass, metals, and mineral surfaces to dramatically improve the bonding of subsequent polymer coatings, paints, or encapsulants.
• Specialty Silicone Elastomers: Acting as a crosslinking agent in the synthesis of moisture-cure RTV (Room Temperature Vulcanizing) silicones and other elastomers with tailored properties.
• Composite Materials: Enhancing the interfacial bonding between organic resin matrices (like epoxies or polyurethanes) and inorganic fillers (glass fibers, silica) in advanced composites.
• Coupling Agent for Fillers: Treating mineral or synthetic fillers to improve their dispersion and compatibility within polymer systems, leading to better mechanical properties.
• Waterproof & Protective Coatings: Formulating durable, chemically resistant coatings for textiles, electronics, and industrial equipment.

Basic Information

Product Name	3-Isocyanatopropyl-[3-Isocyanatopropyl(Dimethyl)Silyl]Oxy-Dimethylsilane
CAS No.	20160-69-4
Molecular Formula	C14H26N2O3Si2
Molecular Weight	326.54 g/mol
Synonyms	Bis(3-isocyanatopropyldimethylsilyl) Ether; 1,3-Bis(3-isocyanatopropyl)-1,1,3,3-tetramethyldisiloxane; Disiloxane, 1,3-bis(3-isocyanatopropyl)-1,1,3,3-tetramethyl-; 3-Isocyanatopropyl Dimethylsilyl Ether; Tetramethyl-1,3-bis(3-isocyanatopropyl)disiloxane; Silane, [3-(dimethyl)(3-isocyanatopropyl)silyl]oxy-3-isocyanatopropyldimethyl-; Silquest A-Link 595 (Potential trade name)
EINECS	243-597-1

Quality Control

Our production of 3-Isocyanatopropyl-[3-Isocyanatopropyl(Dimethyl)Silyl]Oxy-Dimethylsilane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by titration, isocyanate content determination, and impurity profiling by GC or HPLC, to ensure consistency and high purity. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We operate under a quality system aligned with ISO standards to guarantee supply reliability and product integrity for our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C (refrigerated) or as specified on the label to maximize shelf-life and maintain reactivity. This material is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or argon) after initial opening to prevent premature reaction and degradation. Keep away from heat, sparks, open flames, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (Isocyanate Content)	≥ 95.0%
Purity (GC)	≥ 97.0%
Color (APHA)	≤ 50
Density at 25°C	~1.02 g/mL
Refractive Index at 20°C	~1.445
Water Content (KF)	≤ 0.05%

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