SurePrep 3 in 1 Acrylic Primer/Sealer/Undercoat is a premium quality, fast drying, water based, interior and exterior multipurpose primer/sealer/undercoat. Formulated primarily to provide a sealed and sandable surface for acrylic and solvent based topcoats. Combines the qualities desired in an interior/exterior primer: Excellent adhesion, and filling properties, low spatter, sandability, minimal odour, excellent flow and levelling. May be applied by brush, roller or spray. Contain anti fungicidal additives and may be tinted to facilitate contrasting colours. Complies with APAS Standard APAS 0172 and is environmentally friendly, non-toxic, nonhazardous and non-flammable.