Testing of Powder Coatings
Testing of Powder Coatings
Surface Characteristics
| Test Method | Procedure (s) | Primary Test Equipment |
| Surface Characteristics | ||
| Smoothness | PCI # 20 | Smoothness Standards |
| Gloss | ASTM D523 | Glossmeter |
| Color | ASTM D2244 | Colorimeter |
| Distinctness of Image | Visual Observations | |
| Contrast Ratio | PCI #3 | Special Substrates, |
| ASTM D2805 | Reflectance Instruments |
Physical Characteristics
| Physical | Test | Primary Test Equipment |
| Characteristics | Procedure (s) | |
| Film Thickness | ASTM D 1186 | Magnetic Film Thick Gauge, |
| ASTM D1400 | Eddy Current Induce Gauge | |
| Impact | ASTM D2794 | Impact Tester |
| Flexibility | ASTM D522 | Conical or Cylindrical Mandrel |
| Adhesion | ASTM 2197 | Balanced-Beam Scrape-Adhesion, |
| ASTM D3359 | Cross Hatch Cutting Device and Tape | |
| Hardness | ASTM D3363 | Calibrated Drawing Leads or Pencils |
| Abrasion Resistance | ASTM D4060 | Taber Abrader and Abrasive Wheels |
| ASTM D968 | ||
| Edge Coverage | ASTM 296 | Standard Substrate and Micrometer |
| Chip Resistance | ASTM D3170 | Gravelometer |
| Test Method | Procedure(s) | Primary Test Equipment |
| Environmental Characteristics | ||
| Solvent Resistance | MEK or other | |
| Stain Resistance | ASTM D1308 | Standard Reagents |
| Chemical Resistance | Immersion or Spot Tests | |
| Humidity | ASTM D 1735 | Standard Water Fog |
| ASTM D2447 | Chamber, Test Chamber 100% RH | |
| at 100F | ||
| Salt Spray | ASTM B117 | Salt Fog Chamber |
| Weathering | ||
| Exterior | ASTM D1014 | Panel Racks |
| Accelerated | ASTM D4141 | Special Racks and Reflector |
| Weatherometer, QUV and | ||
| Artificial | ASTM D5031 | Equipment ASTM G23, |
| ASTM D 822 | G26, G53 | |
| ASTM D4587 | ||
| ASTM D3361 |
Testing of Powder Coatings
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