PVA adhesives are polyvinyl acetate products used in the ceramic industry as binders and fixatives. They strengthen the layers applied to the tile before firing.
PVA is a polymer that forms a strong film as it dries. Mixed into the glaze or engobe, it binds the particles of the layer together and holds the layer more firmly to the tile.
Between glazing and the kiln, the tile travels over belts, rollers and decorating machines. A stronger layer suffers less from friction and chipping, which means fewer defective tiles at the end of the line.
Yes. Being a water-based emulsion, it mixes into the suspension without special preparation. The point of addition and the amount are adjusted so the glaze viscosity does not change.
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