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The weather resistance,appearance,physicomechanical characteristic and anticorrosion of polyurethane powder coating is good.So it is especially suitable for outdoor workpiece.NOTesting ItemTesting MethodTesting Result1Appearance(visual)Homogeneous color,Without any agglomrateHomogeneous color,Without any agglomrate2Pinhole Test(GB/T5135.20-2010)Without electric-sparkPass3Adhesion(GB/T5135.20-2010)1~3 Class1 class pass4Bending Test(GB/T5135.20-2010)Coating is not peeling, breakingPass5Flattening Test(GB/T5135.20-2010)Coating is not peeling, breakingPass6Impact Resistance(GB/T5135.20-2010)Coating is not peeling, breakingPass7Vacuum Resistance (GB/T5135.20-2010)Coating is not peeling, breakingPass8High Temperature Resistance(GB/T5135.20-2010)Coating is not peeling, breakingPass9Low Temperature Resistance(GB/T5135.20-2010)Coating is not peeling, breaking. Adhesion pass 1~3 class1 class pass10Pressure Cycle (GB/T5135.20-2010)Coating is not peeling, breaking. Adhesion pass 1~3 class1 class pass11Temperature Cycle (GB/T5135.20-2010)Coating is not peeling, breaking. Adhesion pass 1~3 class1 class pass12Weather resistanceUvioresistant is up to GB5237.4Pass
