Columbia Chemical Corp. has been granted approval from several global OEMs for the use of its zinc and zinc-alloy plating processes. To achieve these approvals, the processes were subjected to rigorous testing at each facility.
General Motors has granted a global fastener approval for GMW 3200 tin-zinc alloy. Columbia Chemical’s approved process includes COLTIN-ZN, COLDIP TZ-10, COLFIN TTM-1016. Columbia Chemical is also approved for the GMW-4700 Type B, BL specification for zinc-nickel. Columbia Chemical’s approved process includes TRIVECTA NI-Z BLACK 70 with TRIVECTA BLACK SEALER 350.
National Cash Register
National Cash Register has approved COLDIP TRI-V 200UB for zinc plating under its 009-0020301F specification.
Alfagomma, an Italian-based manufacturer of hoses, fittings and adapters with a worldwide network of regional branches, has granted approval of SpectraMATE 25 and Zinc-Chro-SHIELD to meet their galvanizing specifications for hydraulic components and for rigid pipe. The processes are being provided and serviced by Tecnochimica, Columbia Chemical’s distributor in Italy. Alfagomma requires a corrosion resistance of at least 200 hours for the zinc corrosion (white rust) and at least 400 hours for the corrosion of base metal (red rust) for both specifications.
Columbia Chemical Corp. is one of the world’s largest manufacturers of zinc and zinc alloy plating additives. For more information, contact Columbia Chemical Corporation, 330-225-3200, columbiachemical.com