First and foremost, this is a professional-grade sealer with a matt finish. The safe, environmentally friendly formula provides excellent water repellency and stain resistance. Essential All Stone Sealer Matt Finish has a specialised formula that significantly reduces capillary water absorption of the treated surface while not congesting the pores or capillaries. Considerably, this reduces the potential for organic soiling, moss and algae growth, and allows the surface material to "breathe" and transfer moisture vapour. On textured and riven surfaces, the coverage averages 4-6 square metres per litre. On smooth, honed, or polished surfaces, up to 15sq metres per litre. Available in 5L and 25L. HOW TO APPLY: 1. Remove any loose debris from the work surface before beginning your work, and make sure you have adequate personal protection, such as gloves , proper protective eyewear , a face mask , and appropriate clothing. 2. Before applying the product, make sure the surface is completely clean and dry. Application methods would be, low-pressure sprayer , roller , natural fibre brush or sponge . 3. To achieve complete coverage, apply two coats of Essential All Stone Sealer Matt Finish ""wet on wet."" DO NOT DILUTE. After 45-60 minutes, the surface should be dry. If rain is forecasted or begins, cease production of treatment effective immediately and cover newly pre-treated areas; the surface must remain completely dry for the first 6 hours after application. PLEASE NOTE: When this product is applied, the colour and/or appearance of the stone will change. As a result, always test the product in an inconspicuous area before using it. Masking tape can be used to protect any surfaces that are not to be sealed. NOT RECOMMENDED FOR USE ON HIGHLY POLISHED, CERAMIC/GLAZED, DENSE, OR NON-POROUS SURFACES.