Buildmix-PVA is a chemically engineered product specifically designed to be used as a bonding agent or as an admixture to grouts, mortars, stuccos, Portland cement or gypsum based plasters and compounds. Buildmix-PVA is a PVA based bonding agent and comes as a thick milky white liquid. When used as a bonding agent, it forms a glue line type coating that helps create a chemical bond between a compatible substrate and a suitable top layer.