Just about everybody uses a plastic tank for something. Whether it be for storing chemicals, holding fluids in a vehicle or even a fish tank, plastic tanks are all around us. Plastic tanks can be highly breakable, however. The good news is they are quite easily repairable.
Sand down the cracked or broken area of the plastic tank with a fine sandpaper. By doing this, you will remove any jagged edges that may exist, whether visible or microscopically.
Cut a section of fiberglass cloth large enough to completely cover the crack or hole in the tank.
Set the section of fiberglass cloth over the hole or crack.
Apply the epoxy solution using an epoxy brush. Cover the entire fiberglass cloth with the solution, especially including the edges.
Let the solution sit for about 20 minutes. The epoxy will harden and bond the fiberglass to the plastic, creating a liquid-tight seal.
