Provide a long-lasting stain-resistant coating for natural limestone surfaces with the StoneCare4U Essential Matt Finish Limestone Sealer 5L. This quick-drying formula forms a long-lasting, matt-look stain-resistant coating! Formulated especially for natural limestone surfaces - it is suitable for other porous natural stones such as sandstone and slate. The product provides excellent water repellence and long-lasting protection. Once sealed, the attractive matt finish helps to prevent efflorescence, green growth and algae growth and creates a self-cleaning surface tension that reduces the need for regular maintenance. How to apply: Before use, remove any loose debris from the work surface and ensure you have adequate safety wear, i.e. gloves, suitable protective eyewear, face mask and clothing. Leave the surface for a minimum of 72 hours with clear and dry weather to ensure the surface is completely dry and ready to be sealed. Only use when above 13 degrees Celsius and no higher than 23 degrees Celsius. Before application, the surface must be completely clean and dry. Application methods include a low-pressure sprayer, roller, natural fibre brush or sponge. Apply sealer, to saturation, two coats “wet on wet” are needed to ensure complete coverage. Do not dilute. Surface dry after 45 to 60 minutes. If rain is forecast or starts, then stop treatment immediately and cover the freshly impregnated areas, the surface is required to stay completely dry for the first 6 hours after application. Please Note: Sealer may cause a change of colour on some surfaces – always try the product in an inconspicuous area before use. Surfaces that are not to be sealed should be protected with masking material. Not recommended for use on highly polished, ceramic or glazed dense or non-porous surfaces. Pack of 2.