Ureido silane coupling agent series

Ureido silane coupling agent contains ureido functional groups and hydrolyzable alkoxy groups. It provides excellent polar‑interface bonding capacity. It modifies surfaces of inorganic fillers and glass fibers, greatly improving adhesion strength between fillers and polar resins such as epoxy, phenolic and polyurethane. It enhances hot‑humid resistance, peel strength and impact resistance of composites. With good hydrolysis stability, it fits applications requiring high weathering and moisture resistance.

• 1. Glass fiber treatment: Sizing agent for glass fiber
• enhance interfacial strength of epoxy & phenolic composites.
• 2. Powder modification: Surface activation for aluminum hydroxide
• silica
• kaolin and other inorganic fillers.
• 3. Adhesives & sealants: For epoxy and PU adhesives
• boost adhesion on glass and metal substrates.
• 4. Electronic potting compounds: Improve filler dispersion
• enhance hot‑humid resistance and insulation performance.
• 5. Coating systems: Improve water resistance
• salt‑spray resistance and substrate bonding of coatings.