RAL1007 daffodil yellow food grade mirror chrome Polyurethane powder coating
Both chemistries provide fairly good chemical resistance however polyurethanes significantly outshine polyesters if formulated appropriately. In fact a highly crosslinked polyurethane powder coating provides chemical resistance that rivals epoxy powder performance.
| Resin type | Epoxy system | Hybrid system | Polyester system | Polyurethane system | |
| Stoving cycle | 180°Cx10min-200°Cx10min | 180°Cx10min-200°Cx10min | 180°Cx10min-12min | 200°Cx10min | |
|
Physical and Chemical Properties | Gloss % | 5-95 | 20-95 | 40-95 | 20-95 |
| Adhension | E | G-E | G-E | G-E | |
| Impat resistance | E | G-E | G-E | G-E | |
| Pencil hardness | H-2H | F-H | F-H | F-H | |
| Flexibility | E | E | E | E | |
| Weathering resistance | P | P-F | E | G-E | |
| Acids resistance | G | G | G | F | |
| Alkalies resistance | G | G | F | P | |
| Salt spray resistance | G-E | G | G | G | |
| Slovent resistance | G | F | F-G | F | |
| Overbaking resistance | F-P | G-E | E | G-E | |
| Marks:1.E:Excellent G.good F.Fair P.Pour 2.Package:20kg or 25kg/CTN | |||||
| Test Item | Test standard and Method | Test index | |
| Impact resistance | GB/T 1732 -1993 | ISO6272 | 50kg/cm |
| Adhension(cross-cut) | GB/T 9286 - 1998 | ISO2409 | Class 0 |
| Flexibility | GB/T 6742-1986 | ISO1519 | 2mm |
| Pencil hardness | GB/T 6739-1996 | ISO2815 | 1H-2H |
| Cupping test | GB/T 9753-1988 | ISO1520 | 6mm |
| Salt spray resistance | GB/T 1771-1991 | ISO7253 | >400 Hours |
| Heat & humidity resistance | GB/T 1740-1979 | ISO6270 | >500 Hours film gloss slightly lose |
| Note: 1. Above test are using 0.30mm thickness degreased, rust removed cold rolling steel plate, film thickness is 60-80um.2. Film performance may slightly decrease with gloss decrease. | |||
If you want a detailed quotation, please inform me the following :
1. Required RAL color .
2. Type of texture (smooth, wrinkle, sandy, hammer tone, fine art).
3. Gloss ( 80% and above , 40%~80 % ,10% ~40% or 2%~10% )
4. Your quantity of each color.
5. Your usage (Such as aluminum windows or doors, stock or fence)
