GLEAN Temporary Pre-Grout Coating protects your tiles from stains and residue left by grout and jointing compound. The innovative water-based solution is designed to safeguard your tiles before grouting and jointing, preserving the beauty of your tiles. Simple to apply and easy to remove, it is the quick and easy way to protect the final finish of your tiles. Suitable for most tile surfaces, including porcelain, ceramics, marble, mosaics, natural stone tiles, terracotta and terrazzo.