Paint Master FESTON PLUS Base Coat is a high-performance, dry powder technical undercoat optimized for all cured, porous interior and exterior masonry surfaces. While ordinary white cement base coats shrink, crack, or wash away under heavy moisture, FESTON PLUS is fortified with special mineral additives and advanced molecular binders that fuse directly with cementitious substrates. It operates both as an elite anti-porosity sealer and a luxurious, high-whiteness structural foundation, establishing a perfectly uniform, buttery-smooth matte topography that enhances the true tone of any architectural topcoat.