Lanco Aqua-Proof 5 Gal. Waterproofing Roof Primer

For commercial, residential, RV and mobile home roofs. Waterproofing primer used in roof coating systems. May also be used for other waterproofing applications. Covers approximately 80 square feet per gallon per coat. Dries to touch in 45 minutes. For previously coated roofs, concrete/masonry, metal, rubberized asphalt, rubberized mastic, trailers, RVs, and wood.