CONTRACT PVA is a poly-vinyl acetate homo-polymer, formulated as a high viscosity emulsion. It is a safe to use, multi-purpose, water based primer, sealer & bonding agent, which can be applied to a wide range of porous masonry based building materials to improve the initial bond; adhesion and durability of a subsequently applied render, screed or adhesive coating.
Primer for porous worn surfaces
Seals porous gypsum plaster
Reduces suction on porous substrates
Adhesion promoting admixture for renders & screeds
Bonds well to porous surfaces