Primer for Bitumen A solvent-based primer that seals porous or absorbent substrates and improves the adhesion of bituminous coatings, sheet membranes and bitumen-based line markings. Suited to highway reinstatement, roofing and general groundworks where a bitumen product needs a properly sealed base to bond to. Key features Seals porous, absorbent substrates before bitumen is applied Improves adhesion of bituminous coatings, sheet membranes and line markings Rain-resistant within 20-30 minutes of application Adheres to damp (but not wet) surfaces Where it's used Highway and road reinstatement ahead of bitumen-based line marking Roofing and waterproofing projects using bituminous sheet coverings Sealing porous concrete, asphalt or masonry before a bitumen product is applied Sizes Available as a 4 litre tin (covers approximately 12m²) or a 20 litre drum (covers approximately 60m²) - choose based on the size of the job. Specification Details Filling volume 4,000ml / 20,000ml Coverage 12m² / 60m² Weight 6kg / 22kg Minimum application temperature 5°C Rain resistance 20-30 minutes after application