This Contract Pva is 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 and features:
- 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
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