IKOpro Synthaprufe LAC is a high performance waterproofing liquid. It can be used as a damp proof membrane and a water repellent coating. The formula is a cold-applied liquid asphaltic compound which is easy to apply. Once applied it dries to provide a waterproof and vapour resistant flexible film. When suitably protected, Synthaprufe LAC will be effective throughout the life of the building. Suitable for waterproofing of foundations, retaining walls, abutments, steel columns, beams, lintels and structures where cladding is to form the outer leaf. Compatible, when cured, with all Hyload High Performance DPCs.