Anvil High Adhesion Grip-Tite WB Bonding Primer #1750 - Preparation for Anvil Floor Coatings - 1 Gallon Apply directly to clean porous concrete Forms a surface that improves the workability and durability of the topcoat. For interior/exterior use Painted or unpainted, vertical/horizontal surfaces Compatible with: concrete, masonry, stucco, CMU block and porous brick surfaces