KÖSTER Bitumen Primer 10L

In stock
£92.00 Ex VAT
£110.40 Inc VAT
Koster Bitumen Primer is a solvent based primer for cold applied liquid bitumen coatings or self-adhesive membranes.

Bitumen Primer

Koster Bitumen primer is suitable for all absorbent mineral surfaces, bituminous roofing felt, sheet metal and wood. Suited for priming before the refurbishment of old thick film bitumen coatings.

Koster Bitumen primer acts as a stabiliser for dusty, porous substrates before installation of a variety of bituminous products. It’s not suitable for application to ICF (Insulating Concrete Formwork) or insulation boards. In this instance, a water-based primer is required.

Using Koster Bitumen Primer

Substrates must be clean, free from any contaminants and loose particles. They must be dry or slightly damp and any damaged concrete, cracks or plasters should be repaired before application.

This thin film coat should be applied to the surface by brush, roller or a suitable spraying device. Subsequent coatings can be applied after the priming layer has cured. Damp substrates, high temperatures or extensive direct exposure to sunlight may cause blistering of the applied primer film due to vapour diffusion.

Waterproof & Dry - Trusted independent suppliers of Delta products

If you have any technical questions about Koster NB Elastic, call our expert team on 0203 947 2972. Find out more about Koster waterproofing systems or browse our full range of Koster Tanking products.


  • Easy, seamless application
  • Can be applied by brush, roller or spray
  • Suited for all absorbent mineral surfaces
  • Suitable for old bitumen coatings
More Information
Model DMS 037
Manufacturer Delta Membranes
Packaging Individual item
Size 10 Litres
Dillution Ready to use
Coverage 150-200ml/m²
Colour Black
Country of Manufacture Germany

Thank you for leaving a review on this product!

If you need more help, check out the downloads for more product information, or our fantastic Help & Advice centre!



    Review this product

    Share your thoughts about this product with other customers, write a review.

    Loading Reviews