3-Mercaptopropylmethyldimethoxysilane (CAS 31001-77-1), commonly abbreviated as MPS or referred to by trade names like KBM-802 and HD-105, is a bifunctional organosilane compound developed by Symb ChemTech. With its unique combination of a hydrolyzable methoxysilyl group and a reactive mercapto (-SH) moiety, this colorless to light yellow liquid serves as a cornerstone in advanced material science, particularly in adhesion promotion and polymer modification.
Chemical Properties
- Molecular Formula: C₆H₁₆O₂SSi
- Molecular Weight: 180.34 g/mol
- Physical State: Colorless liquid (slight sulfide odor)
- Key Properties:
- Boiling Point: 96°C at 30 mmHg
- Density: 1.0 g/mL at 25°C
- Refractive Index: 1.45 (n²⁰/D)
- Water Solubility: Insoluble; hydrolyzes slowly in moist conditions
- Flash Point: 93°C (199°F)
Applications
- Adhesives & Sealants:
MPS acts as a coupling agent to improve adhesion between organic polymers (e.g., polysulfides, polyurethanes) and inorganic substrates like glass, metals, and silica. It enhances tensile strength and reduces cure time in sealants. - Coatings & Surface Modification:
By modifying surfaces of fillers (clay, talc) or fibers, MPS improves dispersion and wettability in coatings, reducing viscosity and enhancing durability. - Rubber & Tire Manufacturing:
In silica-reinforced tire treads, MPS lowers rolling resistance while maintaining abrasion resistance, critical for fuel-efficient tires. - Polymer Crosslinking:
The mercapto group enables covalent bonding in UV-curable systems and silicone-based polymers, boosting thermal stability and mechanical properties.
Advantages of Symb ChemTech’s MPS
- High Purity: Available in 95–99% purity grades.
- Custom Packaging: Options include 10 mL to 1,000 L containers (PE pails, steel drums, IBCs).
- Regulatory Compliance: TSCA-listed and compliant with global safety standards (UN2924, GHS).
Technical Support & Safety
Symb ChemTech provides comprehensive SDS and handling guidelines. MPS is moisture-sensitive; store in sealed containers at ambient temperatures. Safety measures include using PPE (gloves, goggles) and avoiding skin/eye contact due to mild irritancy.
Unlock Enhanced Performance with Our Advanced Organosilane
At Symb ChemTech, we are proud to offer 3-Mercaptopropylmethyldimethoxysilane (CAS No. 31001-77-1) – a high-performance silane coupling agent designed for demanding industrial applications. Our product is formulated to deliver outstanding adhesion and surface modification, making it the preferred choice for manufacturers seeking quality and reliability.
Why Choose 3-Mercaptopropylmethyldimethoxysilane?
- Superior Adhesion & Bonding: Our silane improves the bond strength between organic and inorganic materials, enhancing product durability.
- Exceptional Purity: Manufactured under stringent quality control, this product meets the highest industry standards.
- Versatile Applications: Ideal for surface treatment, adhesion promotion, and acting as a coupling agent in various composite and coating applications.
- Innovative Formulation: Engineered with advanced chemical properties, ensuring excellent performance in a wide range of environments.
Key Features and Benefits
- Enhanced Surface Compatibility: Optimizes the adhesion between diverse substrates.
- Chemical Stability: Ensures consistent performance over extended periods.
- Cost-Effective Solution: A reliable product that adds value to your manufacturing process by reducing failure rates.
- User-Friendly Application: Easily integrates into existing production lines, minimizing downtime during implementation.
Applications
3-Mercaptopropylmethyldimethoxysilane is used across multiple sectors, including:
- Coatings & Adhesives: Promotes robust bonding in high-performance coatings.
- Composite Materials: Enhances mechanical strength and chemical resistance.
- Electronics & Semiconductors: Provides essential surface modification for improved insulation and connectivity.
- Automotive & Aerospace: Boosts the durability and performance of advanced composite structures.
Quality and Compliance
At Symb ChemTech, quality is paramount. Our products are developed under strict compliance with international quality standards and are subject to rigorous testing protocols. This ensures that our 3-Mercaptopropylmethyldimethoxysilane not only meets but exceeds your expectations in every application.
Get in Touch
Ready to enhance your production with a reliable and innovative chemical solution? Contact us today to learn more about 3-Mercaptopropylmethyldimethoxysilane and how it can be integrated into your processes for superior performance.