Thermosetting Epoxy/Polyester Powders
Thermosetting epoxy/polyester powders with a great variety and wide selection of colors, include a series of produces such as standard curing, rapid curing and low-temperature curing powders with high gloss, semi-gloss, matt, metal and transparence finishes.
The products may provide excellent decorative appearance. The coatings are durable and adhesive with good heat resistance and superior mechanical and physical properties.
The products are suitable for surface coatings for home electric appliance, furniture, document cabinet, kitchen utensils, display racks, mechanical and electrical equipment, cases of instrument and apparatus, hardwares, copper and aluminium articles etc.
A. Key Technical Indexes of Powder:
| Item |
Index |
Note |
| Appearance(visual) |
Homogeneous color without any agglomerate |
|
| Fineness(180 mesh sieve residue) |
<0.5% |
Or per custom’s request |
| Fused flowability(mm) |
15℃±2℃
20-70mm(tilt test) |
|
| Gel time |
200±2℃ 30-180s |
|
| Curing conditions |
180℃±2℃ 15-20min |
Effective temperature |
B. Properties of Coating Film:
| Item |
Index |
| Color |
Per standard panel and within the range negotiated by custom or supplier |
| Appearance(visual) |
Smooth, slight orange peeled |
| Gloss(60°gauge head) |
High gloss type≥85% Semi gloss type:51-84%
Low gloss type:50-15% Matt type:<14% |
| Cured film thickness |
60-80μm |
| Impact resistance(drop hammer) |
High gloss 50kg.cm pass ( both direct and reverse). Semi-, low gloss and matt: pass (direct), per custom’s request(reverse). |
| Pencil hardness |
2H without scratch |
| Adhesion(cross cut test) |
1mm 6x6 0 grade |
| Bending test(tapering spindle) |
3mm pass |
| Salt spray test |
500h <1 grade |
| Humid heat resistance |
500h <1 grade |
| Cupping test |
≥6mm |
