6 Packs of Evo-Stik Strong Stuff Waterproof Grab Adhesive. Suitable for use on wood, plaster, brick, metal, stone, plaster, ceramics and much more. Specially developed to be totally waterproof. Bonds wet surfaces even under water. Instant waterproof seal. MS Polymer technology. C20 cartridge / 290ml. Requires skeleton to dispense adhesive (not included). Suitable for use on cars, boats and many other items. Suitable for interior and exterior use. Dries off white.