3-Mercaptopropyltrimethoxysilane KH-590 / A-189 / Dynasylan MTMO (CAS 4420-74-0)
High-purity silane coupling agent with superior adhesion promotion for rubber, plastics, and coatings. Features a reactive mercapto group for enhanced bonding with sulfur-cured systems like tires and footwear soles. Ideal for improving wet-scrub resistance in paints or modifying silica-filled composites. Optimized molecular structure ensures low volatility and excellent hydrolytic stability. Compatible with epoxy, urethane, and acrylic matrices. Used in automotive sealants, dental materials, and glass fiber sizing. Bulk pricing available for industrial-scale orders. Strict QC guarantees batch-to-batch consistency (≥98% purity). Shelf-stable with moisture-proof packaging. Global logistics support with express documentation.