12oz Roofmaster Surface Prep

Roofmaster Surface Prep is a 12 oz aerosol asphalt primer designed for roofing and waterproofing applications where only a small area needs to be prepared. It provides a fast, convenient alternative to opening a gallon of brush-on primer for detail work, repairs, flashing, penetrations, curbs, and other localized areas.

The solvent-based formula is designed to help prepare compatible surfaces for asphalt-based roofing and waterproofing materials while reducing the mess, storage issues, and waste that often come with partially used cans of conventional primer.

Asphalt Primer Spray for Roofing and Waterproofing

Roofmaster Surface Prep is intended for professional roofing and waterproofing work where an asphalt primer is needed before applying compatible asphalt-based materials. The aerosol format makes it especially useful for small areas that do not justify opening a full gallon of brush-on primer.

Typical substrates include metal, asphalt, concrete, and masonry when those surfaces are being prepared for compatible asphalt-based roofing, dampproofing, or waterproofing materials. The product should be used as a roofing and waterproofing primer rather than as a general-purpose architectural concrete primer.

Why Use an Aerosol Asphalt Primer?

A gallon of brush-on primer makes sense for a large field application. It makes much less sense when a contractor only needs to prime a pipe flashing, patch area, metal detail, curb, or small section of a roof assembly.

The 12 oz aerosol can allows crews to apply primer quickly without carrying an open bucket across the roof or storing a partially used container that may dry out before it is needed again. The smaller package can also help reduce wasted material on detail work and service calls.

Before priming, remove loose dirt, dust, and surface residue so the primer can contact the substrate properly. Roofmaster White Knit Wiping Rags are a practical choice for cleaning small roofing and waterproofing detail areas before application and for general cleanup afterward.

Fast-Drying Solvent-Based Formula

Roofmaster Surface Prep uses a fast-drying, solvent-based formula designed to prepare compatible surfaces and promote bonding with asphalt-based roofing materials. The solvent action helps the primer wet and condition the surface, particularly on metal details where a clean, properly prepared surface is important for adhesion.

The aerosol delivery also gives the installer more control on small or irregular areas, helping crews put primer where it is needed without coating a much larger area than necessary.

Ideal for Small Repairs and Detail Work

Surface Prep is especially practical for roofing repair work, penetrations, flashing details, curbs, edge conditions, localized waterproofing, and other situations where the primed area is relatively small. Keeping an aerosol can in a service truck or roofing tool kit gives crews a convenient primer option for these smaller applications.

For contractors who frequently perform repairs or detail work, the ability to prime a small area without opening a gallon can can save time, reduce cleanup, and minimize leftover material.

Compatible Roofing and Waterproofing Substrates

• Metal roofing details and flashing
• Asphalt surfaces
• Concrete used in roofing or waterproofing applications
• Masonry used in roofing, dampproofing, or waterproofing applications
• Localized repair and detail areas receiving compatible asphalt-based materials

ASTM D41/D41M Asphalt Primer

Roofmaster Surface Prep meets the physical requirements of ASTM D41/D41M for asphalt primer used in roofing, dampproofing, and waterproofing. This standard covers asphalt primer intended for use with compatible asphalt-based systems on common construction substrates.

12 oz Can Helps Reduce Waste

Traditional asphalt primer is commonly sold in larger containers. Those packages work well for larger jobs, but they can be inefficient for contractors who only need a small amount at a time. A partially used can may sit in a truck or warehouse until it becomes unusable.

Roofmaster Surface Prep packages the primer in a 12 oz aerosol can so crews can use what they need for detail work while keeping the remainder sealed for future applications. That makes it a practical choice for service work, repairs, and smaller roofing or waterproofing details.