Model Number: EP31485 Brand Name: woncheng Key Specifications/Special Features: Powder coating is a dry finishing process that uses finely ground powders of pigment and resin to coat the surfacePowder coating uses an electrostatically charged technique in which the powders are charged so that the powder particles adhere to the metal surface and are then melted and fused together in the curing process Production Details Product codenumber EP31485 Color RAL9005- jet black Gloss level matt Surface finish smooth Powder property Appearance fine powder Particle size average32-42μm Specific gravity 1.3-1.6g/cm³ Coverage 7-8squaremeterperKgat80μmfilmthickness Applicationrecommendation Application corona Application voltage 60-90kV Gunto component distance 15-30cm Film thickness 80-90μm Curing temperature 190°C(objecttemperature)for15minutes Powder coated film mechanical properties Adhesion cross-cut(2mm),nolossofadhesion Impactresistance direct and indirect50kg/cm Pencil hardness 2H Flexibility 6mm mandrel Bending test 3mm Powder coated film chemical resistance Salt spray test 5%NaCl solutionfor500 hours nochange Acid resistance 5%HCLfor48hoursdiptest nochange Alkali resistance 5%NaOHfor48hoursdiptest nochange Surface preparation Allsurfacesshallbedegreasedandpre-treatedforoptimalperformancebeforeapplication Aluminium yellowchromateorgreenchromate/phosphate Ferrousmetals zincphosphateorIronphosphate Zinccoatedmetals zincphosphateorchoromateconversion Storage stability Storeinventilated,dry,cleanroom,temperature<25°C Relativehumidity: 50-65% Awayfromdirectsunlight,fire, heat Forbestperformance,usewithin6months