.Thermoset polyester powders are produced on the basis of high grade polyester resin specialized for powder coating production.
The products may provide coating film with toughness and durability, high gloss, good weather ability, especially outdoor exposure, heat resistance and excellent anticorrosive and anti-blooming properties.
The products are suitable for surface coatings of electric equipment, heating and ventilating facilities, bike, auto parts, agricultural machineries, labels and sign boards, steel window frame, air conditioner, aluminum articles and outdoor utensils etc.
:A. Principal 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°C ± 2°C 20-70mm(tilt test) | |
| Gel time | 200±2°C 30-180s | |
| Curing conditions | 200°C±2°C 12min |
:B. Properties of Coating Film
| Item | Index |
| color | Per standard panel and within the range negotiated by custom or supplier |
| Appearance (visual) | Smooth, light orange peel is permissible |
| Cured film thickness | 60-80 µm |
| Bending test(taper spindle) | 3mm pass |
| Impact resistance (drop hammer) | 60 lb/inch2 |
| Pencil hardness | 2H without scratch |
| Gloss (60 º gauge head) | High gloss ≥85% Semi gloss: 40-84% |
| Adhesion(cross cut test) | 1mm 6×6 0 grade |
| Salt Spray test | 500h < 1 grade |
| Humid heat resistance | 1000hr < 1 grade |
| Covering | 7-9 m2/kg |
| Outdoor sun test 12 months | Good, no blooming |