RAL1005 honey yellow pure powder coating paint for picnic table surface powder coating
Epoxy-based powder coatings were the first thermosetting systems to become commercially available and are still widely used today. Although epoxy powders can be used in decorative applications where they are not subject to UV radiation, they are used primarily as functional coatings for substrate protection where inherent toughness, corrosion resistance, flexibility and adhesion are required.
Specification
Inspection Item | Test Standard or Method | Test Indicator | |||
Type A | Type B,C | ||||
Impact resistance | ISO6272 | GB/T1732-1993 | 40cm | 50cm | |
Cupping test | ISO1520 | GB/T9753-1988 | 5mm | 8mm | |
Adhesion(Planning grid method) | ISO2409 | GB/T9286-1998 | Grade 0 | ||
Crook | ISO1519 | GB/T6742-1986 | 3mm | 2mm | |
Pencil hardness | ASTMD3363 | GB/T6739-1996 | 1H-2H | ||
Salt test | ISO7253 | GB/T1771-1991 | > 500 hours | ||
Heat test | ISO6270 | GB/T1740-1979 | > 1000 hours | ||
Heat resistance | 100°C/24 hours (white) | Paul Light character (best) | |||
Remark
| 1, Film thickness: 50-70um. |
Coating Specification
Test Items | Technical Indicators | Test Method |
Appearance | smooth,uniform color, no bubble , no cracking and sinkhole, allow light crack | visual |
24h or 48h adhesion | 1~2 | SY/T 0315-2005 |
24h or 48h cathodicdisbonding resistance(mm) | ≤6 | SY/T 0315-2005 |
cathodicdisbonding resistance 28d(mm) | ≤ 8 | SY/T 0315-2005 |
Porosity of bottom section | 1~4 | SY/T 0315-2005 |
Porosity of underlying surface | 1~4 | SY/T 0315-2005 |
2° bending resistant(0°or -30°) common level | No cracking | Q/CNPC38-2002 appendix D |
1.5°bending resistant(0°or-30°)Intensify Level | No cracking | Q/CNPC38-2002 appendixD |
10J Impact(common level) | No pinehole | Q/CNPC 38-2002 appendix E |
15J Impact Intensify Level | No pinehole | Q/CNPC 38-2002 appendix E |
scratchresistant, 30Kg, common level | Scratch depth≤350μm No leaking point | Q/CNPC 38-2002 appendix F |
scratchresistant,50Kg, Intensify Level | Scratch depth≤500μm No leaking point | Q/CNPC 38-2002 appendix F |