HP Sealer is a durable twin pack urethane sealer with extra stain resistance. HP Sealer has been thickened to make it suitable for very porous substrates. HP Sealer penetrates and bonds with the tile thereby strengthening, sealing and protecting the tile from wear and tear. HP Sealer is suitable for medium to high porosity tiles (e.g. terracotta, slate, sandstone, quartzite and cement). HP Sealer enhances the natural colour of the tile and dries to matt/sheen finish; (a gloss may be achieved by over coating with Maxi Shine)