20Kg Noxyde Anti-Rust Waterproofing Membrane Gravel Grey RAL 7001-20 is a rust preventive coating, single component and really easy to apply. The coating forms a rubbery anti-rust membrane which is impermeable to water and highly resistant to weathering, mechanical and chemical attack. Elasticity: Noxyde has an excellent elasticity (>200%) for protection against cracking and peeling on metal surfaces to expansion, contraction, movement and mechanical impact. Ideal for cables, bolts and nuts, cladding, etc. Adhesion: Even when the membrane is cut, its incredible adhesion will prevent any type of undercutting by corrosion and therefore corrosion is not able to spread. Waterproofing: Noxyde is impermeable for water. This strength and its excellent elasticity make Noxyde the best solution for the protection and waterproofing of cladding and metal roofs. Excellent edge coverage: Corrosion usually begins on outside edges where there is minimal film build. Testing proofs a 100% edge coverage at a round corner and still a 41% coverage at a 90 degree corner.