For finishes made with Polyester epoxy powder coat on nano-treated mild steel components. All tests are conducted on panels as recommended in ASTM standards.
| # | Tests | Parameters | Test Methods |
| Colour | L*a*b readings of less than 0.3 under cool white light to RAL Shades | Ref. RAL Shade cards | |
| Gloss | 60 +/- 10 at 60o at 1.5 mil | ASTM D523 | |
| Hardness | No film cut while gouging with a mechanical pencil using a 2H lead | ASTM D3363 | |
| Adhesion or cross hatch test | No loss of adhesion Class 5B | ASTM D3359 | |
| Flexibility | No cracking or peeling at 1/8” Conical Mandrel | ASTM D522 | |
| Chemical and Stain Resistance | Five drops of each reagent under a watch glass for 4 hours. There shall be no more than a trace of stain. Change in gloss shall not exceed standard. Reagents used: IPA, Nail polish remover, fizzy drinks like coke, Mustard, Tea, Coffee, 5% acetone | ASTM D1308 | |
| Impact Resistance | No peeling or loss of adhesion using adhesion tape. | ASTM D2794 | |
| Salt Spray Resistance | Min. 400 hours, no creeping corrosion | ASTM B117 | |
| Humidity Resistance | No blistering after 200 hours | ASTM D2247 | |
| Abrasion Resistance | 0.3 g – 0.4 g material loss after 100 cycles of Tabor Abrader | ASTM D4060 | |
| Oven Bake Resistance | Within the specification of colour, gloss, hardness and adhesion after double bake of one panel | ASTM D2454 | |
| UV Resistance | Minimal change in colour or gloss after 60 hours using QUV-A bulbs | Ref. QUV Weatherometer manual |
