Bonds all materials even under water: Butyl Rubber, Vinyl, Glass, Plastic, Ceramic, Stone, Concrete and even wood - Solvent free so fine to use in ponds with fish still in place provided they do not ingest it. This sealant is black and if stored in dry conditions it has a twelve month shelf life. This 290ml tube is designed to fit in to a mastic gun and has the familiar screw on nozzle which you cut the top off to alter the thickness of the bead.