Ideal Seal MS290 is the ultimate all round sealant and adhesive based on new MS polymer technology. Non toxic, fish and plant safe. Will bond to dry or wet surfaces. Approved for use on self cleaning glass. 100% VOC Free, free of isocyanates. This product bonds all materials even underwater. Bonds Butyl/EPDM, Plastic, Vinyl, concrete wood, glass, stone, ceramic. No need to remove fish from your pond. Repair holes in liner and preformed ponds, join liner together, fill cracks around waterfalls. Black colour.