TapeCase Embossed Tin-Plated Copper Foil Tape-Converted from 3M 1345, is an industrial grade 4.0 mil electrically conductive metal foil tape used for applications requiring electrical conductivity through both the adhesive and backing of a tape. Featuring tin plating on copper, this product is excellent for soldering. Other applications include grounding and EMI shielding. This product is flame retardant and resists oxidation and discoloration.