Detailed Product Description FRD, FRY is a two-layer field joint coating system for pipeline operating at ambient temperature. FRD system consists of a wraparound HSS and a Closure Patch; FRY consists of a heat-recoverable radiation cross linked polyethylene tube coated with a hot- melt adhesive layer. FRD, FRY system is compatible with line coatings for PE, Steel, FBE, Coal Tar, Tape & Asphalt.