Silquest™ A-151NT

Silquest™ A-151NT by Momentive Performance Materials is vinyltriethoxy silane. It functions as a crosslinker in systems where greater elongation is required. It acts as an adhesion promoter that bonds to inorganic substrates to provide excellent wet and dry adhesion. It increases the rate of silane hydrolysis and allows free radical addition to polymers. It is also recommended for chain extension of RTV silicones or other silane or OH functional polymers. The resulting Si-O-Si crosslink sites are highly resistant to exposure to moisture, chemicals and UV. Siloxane crosslinks tend not to generate color and are resistant to environmental factors, such as acid rain. Vinyl silanes can also be grafted to unsaturated polymers such as polyethylene, polyester and styrene-butadiene co-polymers, via free radical chemistry. Silquest™ A-151NT can be added as a monomer during emulsion polymerization to form silane-modified latexes.