- Apply before a bituminous coating
- For all common roof surfaces
- Spray or brush on
- A highly penetrative, thin bituminous solution. Use for priming concrete roofs, cementitious screeds, renders, bitumen felt and mastic asphalt prior to the application of bituminous materials, such as Brushable Waterproofer.
- Penetration Primer should be well scrubbed in by brush or applied by spray, Take care to ensure the surface is dry and as dust-free as possible.
- Drying time is approximately 3-6 hours depending on conditions. Make sure that the product has dried completely before over coating.