Rust-Oleum Concrete Interior Wall Paint Charcoal is a specially designed wall paint that creates a textured, concrete effect to ordinary drywall, wood, and hardboard surfaces. Concrete Wall Paint avoids the hassle of contractors and creates the concrete effect without the cost and inconvenience of expensive concrete. Apply Zinsser Bulls Eye 1-2-3 Primer prior to painting to build depth of color and a transformative look. Water-based, acrylic paint formula dries to the touch in 30 minutes for fast project completion. Use a 3" to 5" brush using a cross-hatching motion for best results.