Description The transparent and colourless FASSA IS 510 siloxane water repellent coating, contains special solvent-modified siloxane resins. Use: Use IS 510 for increased water repellency when treating substrates such as facing brick, small concrete structures and stone. For marble surfaces, please test beforehand to check compatibility. Use IS 510 as a protective finish for application on exterior decorative lime-based putties, such as our LS 122 or mineral wall coverings like our RF 100, RM 200 or RG 300. Use at least one month after applying these putties. When applied, IS 510 does not affect the breathability of surfaces. IS 510 Siloxane Water Repellent Coating penetrates deep down into the material treated, since no film forms, the appearance is unaffected. Supply: Can of approx. 5 litres Coverage: Approx. 0.1 – 1.0l/m² (depending on absorption of substrate being treated) Application: 2 coats recommended Recommended for use with brush or roller IS 510 is suitable for exteriors UKCA Approved IS 510 is compliant with: EN 1504-2:2005 (systems for the protection and repair of concrete structures), for Hydrophobic impregnation (class H), in accordance with principles 1.1 (protection against ingress, PI), 2.1 (moisture control, MC), 8.1 (increasing resistivity, IR), Assessment and Verification of Constancy of Performance System 4, Table ZA.2. Before using any of our Fassa products, we always advise checking the data sheets before use, please refer to the Fassa Bortolo website