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Amazon£23.49Visit shop Bond It Black Bitumen Primer – 5L | Heavy-Duty Waterproof Primer For Roofs – Concrete – Metal & Masonry | Quick-Drying – Deep Bituminous Sealer | Improves Adhesion For Roofing & Flashing
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Bond It Bitumen Primer is a professional-grade, high-penetration solvent-borne primer designed for contractors and homeowners looking to seal and stabilize porous or dusty surfaces prior to applying waterproofing systems. Its primary benefit is the significant enhancement of adhesion for bitumen coatings, mastics, and flashing tapes across a diverse range of substrates. While it offers excellent durability and fast drying times, users should note that as a solvent-borne product, it must be used in well-ventilated outdoor areas to avoid fume inhalation.
| Colour | Black |
|---|---|
| Model Part Number | B020 |
| Brand | Bond it |
The surface should be as dry as possible. While it is rain-resistant once applied, applying it to standing water or saturated surfaces will prevent proper penetration.
No, this is a solvent-borne product that releases fumes. It should only be used in outdoor, well-ventilated areas.
No, it is a ready-to-use product. Stir it well within the tin before use, but do not dilute it.
Use white spirit or a professional solvent cleaner immediately after finishing your application.
Coverage depends on the porosity of the surface, but a 5L tin is designed for high-efficiency coverage on standard commercial and domestic substrates.
Check if the application layer is too thick. Ensure the surface was dry and ambient temperatures are not too low.
Ensure the primer was fully dry before applying the waterproofing system. Ensure the surface was free of loose dirt before the primer was applied.
Store the tin in a warmer environment for a few hours before use; do not add thinners or water.
Before use, ensure the surface is free of oil, grease, and loose debris. Stir the contents of the 5L tin thoroughly before application. No thinning is required. Apply in a single, consistent coat; avoid pooling the product, as thick layers may take significantly longer to cure.
Compatibility: Use on concrete, cement, metal (iron/zinc/lead), bitumen felts, and slate. Not recommended for use over non-bituminous plastics or surfaces treated with non-compatible sealants.
Care: Store the tin in a cool, dry place with the lid tightly sealed to prevent solvent evaporation. Clean brushes and tools using white spirit or a standard solvent cleaner immediately after use to prevent the bitumen from hardening on the bristles.
