Speciality Chemicals

Divinyltetramethyldisiloxane

  • CAS No.2627-95-4
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity Divinyltetramethyldisiloxane serves as a premium linear inhibitor for two-part silicone RTV-2 addition curing systems, ensuring controlled reaction rates.

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Product Technical Details

Product Overview

Divinyltetramethyldisiloxane is a specialized vinyl-functional siloxane compound designed for high-performance silicone applications. As a critical component in the polymer chemistry industry, this substance acts primarily as a linear inhibitor within two-part addition curing systems. Our manufacturing process ensures exceptional purity levels, making it an ideal choice for formulators requiring precise control over pot life and curing kinetics. The chemical stability and consistent quality of this product support reliable production outcomes in diverse industrial settings.

Key Performance Features

Utilizing advanced synthesis techniques, we deliver a product that meets rigorous international standards. The unique molecular structure provides effective inhibition without compromising the final mechanical properties of the cured silicone elastomer. Key advantages include superior thermal stability, low volatility, and excellent compatibility with platinum catalysts. These characteristics make it a preferred choice for manufacturers seeking to optimize their formulation efficiency.

  • High purity grade ensuring consistent reaction control
  • Effective inhibition for extended pot life in RTV-2 systems
  • Excellent compatibility with platinum-based catalysts
  • Low viscosity for easy handling and mixing
  • Stable performance under varying storage conditions

Technical Specifications

ParameterSpecification
CAS Number2627-95-4
Molecular FormulaC8H18OSi2
Molecular Weight186.40 g/mol
AppearanceColorless or yellowish transparent liquid
Purity≥99.0%
Density0.81 g/cm3
Boiling Point139oC
Flash Point19oC
Refractive Index1.411

Industrial Applications

This compound is extensively used as a linear inhibitor in the formulating of two-part Silicone RTV-2 Addition Curing systems. It plays a vital role in regulating the crosslinking density and curing speed, which is essential for applications such as mold making, electronic encapsulation, and potting compounds. By preventing premature curing, it allows manufacturers sufficient working time to process complex shapes and ensure complete filling of molds. Additionally, it serves as a valuable building block in the synthesis of modified silicone fluids and specialty polymers.

Storage and Handling

To maintain optimal quality, store this product in a cool, ventilated place away from direct sunlight and heat sources. The container should remain tightly closed when not in use to prevent moisture contamination. Given the flash point, appropriate fire safety measures must be observed during storage and transportation. We offer flexible packaging options including 160 kg drums or customized solutions based on specific customer requirements. Each batch is accompanied by a Certificate of Analysis to verify compliance with stated specifications.