High performance, ethanol based impregnating sealer for natural stone. Can be used on interior and external surfaces and is unique with moisture tolerant properties. Dries extremely quickly even if the stone is slightly damp and initially cures within a few hours. Very popular with the trade as an external paving sealer as it is quick and easy to use with both oil and water based stain resistance. Coverage rate 10 to 15sqm per litre depending on the porosity of the material and can be applied to most porous surfaces ie stone, brick, concrete and render.