Apollo Roofing RoofPrime Fast-Cure Multipurpose Primer is a fast-cure multipurpose primer based on reactive polyurethane. It is specifically formulated to improve the adhesion of concrete, ensuring a long-lasting bond. This primer can be easily applied with a brush, providing simplicity and ease of use. Its primary purpose is to enhance the adhesion properties of concrete to liquid coatings in liquid-applied membrane applications.