Kerakoll Keragrip Eco Primer is an eco-friendly water-based primer that is designed to increase adhesion to both absorbent and non-absorbemt substrates. Keragrip Eco is suitable for use on internal substrates including cement based screeds, concrete, natural stone, existing tiles, wood panelling, hardwood floors, metal, epoxy resin, varnishes and rigid PVC coatings. Keragrip Eco is a red colour, which makes application quick and easy and helps avoid missing patches. Can be applied using a sponge or roller.