Need to waterproof your new retaining wall or structure? Blackseal bitumen waterproofing membrane is the reliable and easy answer! A commercial grade water-borne emulsion supplied in 20L drums with a simple DIY application, makes Crommelins Blackseal the most popular waterproofing membrane sealer on the market.

Once applied, Blackseal will prevent water ingress and the associated damage and staining to your retaining wall. Simply paint onto the inside surface of the structure with a paint brush or roller with a minimum of two coats, and your job is done!

Suitable for use on all masonry surfaces and timber. One 20L drum will cover approx 15m2 of surface. (product dries black colour so it is recommended to only paint on surfaces that will be covered over or not be seen).

• Waterborne, bitumen-emulsion, general waterproofing membrane

• Ideal for all below-ground applications

• Highly popular for limestone retaining walls to prevent staining

• Supplied in 20L drums

• Pickup from our Canning Vale showroom or call us to organise site delivery