Chrome Gleam HCR 300 CG HCR 300 Catalyst is a liquid additive for use in decorative hexavalent chromium solutions to increase CD and efficiency Super Spray Stop CR-60 Spray suppressant for use in decorative hexavalent and hard chromium plating baths at 2 – 4 ml/l CG HCR 300 Mist Suppressant Lower cost product for use in decorative hexavalent chromium solutions at 1.6 – 4.0 ml/l Chrome Gleam 3C Environmentally friendly decorative trivalent chromium solution , for up to 1 micron deposits, pH 2.8, 10 asd, 32°C . Chrome Gleam 3C JET Modified version of CG3C to produce thin black chromium deposits, pH 2.8 – 3.4, 12 asd, 32°C.