Solid neoprene sheet rubber is designed for use under fuel tanks to comply with USCG requirements for air space. Also for gaskets, component padding, and under-wire traps. Neoprene can be custom-cut to a variety of strip lengths and shapes. Sierra Part #116-14X2X10. Can also be used for gaskets and under-wire traps Easily custom-cut to various lengths and shapes | Shields Neoprene Sheet Rubber, 10'L x 2"W x 1/4" Thick