For roofing contractors, waterproofers, and builders needing a reliable primer to enhance the bond of asphalt-based products on various substrates, Del-Val 100 Quick-Dry Asphalt Primer from United Asphalt offers an effective solution. This general purpose penetrating asphalt primer is specifically formulated to prepare surfaces by improving adhesion prior to the application of both hot and cold asphalt coatings.
Del-Val 100 serves as an all-purpose utility prime coat compatible with a wide range of common building surfaces. Its uses include priming concrete, masonry, Gypsum board, brick, and metal surfaces, particularly in areas where roofing, waterproofing, damp-proofing, and other asphalt coatings are to be applied. By penetrating the substrate, it helps to seal porous surfaces and create a better bonding surface for the asphalt product. Important: This primer is NOT suitable for use with EPDM, PVC, TPO or other single-ply membranes.
Proper preparation is essential for optimal performance; the surface must be clean and free of dirt, dust, oil or grease, and any other foreign matter that would interfere with good adhesion. Apply Del-Val 100 to a clean, dry surface using a brush, roller, or heavy-duty spray equipment. For best results, weather should be clear with no threat of rain for at least 24 hours after application, allowing adequate drying time which varies with weather conditions.
Apply at a rate of approximately 1 gallon per 100 sq. ft., though actual coverage depends upon the absorbency and type of surface that is being primed. More porous surfaces will typically require more product for adequate penetration. Clean tools with Del-Val Orange Cleaner & Degreaser or mineral spirits, taking necessary precautions when handling combustible liquids. This product meets or exceeds the requirements of ASTM D41 and Federal Spec SS-A-701B, confirming its quality and suitability as an asphalt primer for roofing, dampproofing, and waterproofing. Choose Del-Val 100 Quick-Dry Asphalt Primer from A1A Wholesale Supply for a fast-drying, reliable priming solution nationwide.
- Product Name: Del-Val 100 Quick-Dry Asphalt Primer
- Brand: United Asphalt
- Type: Asphalt Primer, Quick-Dry Primer, Penetrating Primer, Utility Prime Coat
- Composition: Asphalt primer
- Key Properties: Quick-Dry, Penetrating, Helps Adhesion, General Purpose Utility Prime Coat.
- Uses/Compatible Substrates: Priming concrete, masonry, Gypsum, brick, and metal surfaces prior to the application of roofing, waterproofing, damp-proofing and other asphalt coatings (hot or cold).
- Incompatible Substrates: EPDM, PVC, TPO or other single-ply membranes.
- Preparation: Surface must be clean (dirt, dust, oil or grease, foreign matter free).
- Application: Apply to a clean dry surface; use brush, roller or heavy duty spray equipment; avoid threat of rain for 24 hours; drying time varies.
- Coverage: Approximately 1 gallon per 100 sq. ft., depending upon absorbency and surface type (Coverage may vary).
- Cleanup: Del-Val Orange Cleaner & Degreaser or mineral spirits.
- Code Approvals / Compliance: Meets or exceeds ASTM D41 and Federal Spec SS-A-701B.
- Function: Improves adhesion on various substrates (concrete, masonry, metal, etc.) before applying asphalt-based roofing, waterproofing, or damp-proofing coatings/adhesives, with quick-drying properties.







