Super Fast Cure TGIC Powder Coating Polyester Resin for Using in Coil or PCM
◎Introduction
KK8048 is saturated carboxyl polyester resin for polyester/TGIC powder coating used in coil or PCM.
In recent years, coil coatings have a lot of room for development in my country. Conventional coils are mostly painted with liquid coatings. Such liquid coatings will cause more or less pollution to the environment. With the strengthening of people's awareness of environmental protection, powder coil coating has become a major development direction. Due to its particularity, coil coatings have special requirements for coating properties, such as weather resistance, chemical resistance, hardness, and bending resistance. Conventional polyester powder coatings can be improved to meet the performance requirements of coil coatings, but conventional polyester powder coatings generally require baking for 10 to 20 minutes to fully cure. However, the coil coating line speed is relatively fast. In order to achieve continuous and rapid coating of the coil on the coating line, the powder coating used must be able to cure quickly in a short time, and the cured coating performance has strict requirements.
KK8048 can be completely cured after baking at 280℃ for 1 minute. The powder coating made of this polyester resin can greatly shorten the curing time. The cured coating has good leveling, good weather resistance, and bending no cracks, meets the performance requirements of coil coatings, and is suitable for rapid coating production lines for coils.
◎Basic Features
Outstanding mechanical properties
Good resistance to chemicals
Excellent storage stability
Excellent durable weatherablity
◎Recommend Formulation:
| KK8048 |
TGIC |
Filler ＆ Pigment |
Leveling agent |
Benzoin |
| 200 |
15 |
95 |
2.4 |
1.2 |
◎Specifications I:
| Appearance |
pale yellow flake |
| Color (50%DMF) |
max:2 |
| Acid Value (mgKOH/g) |
30～36 |
| Softening Point (℃) |
103～113 |
| Glass Transition Temp. (℃) |
～60 |
| Melting Viscosity (200℃, cone/plate, mPa·s) |
5000±1500 |
| Reactivity at 180℃ (s, 7% TGIC) |
100±50 |
| Curing Requirement |
280℃×1min |
| Packaging |
PE Bags, Net Weight 25kg ± 0.1kg / bag |
◎Specifications II:
| Extrusion Condition |
Two-screw Extruder |
|
Zone I: 90～110℃
|
Zone II: 110～120℃
|
| Speed of Revolution |
500～1200rpm |
| Fineness of Powder |
＜60μm |
| Application Condition |
Electrostatic Spraying With |
40～70KV |
| Coating Film Thickness |
50～100μm |
| Degreased Cold-rolled Steel |
0.5mm |
| Film Properties |
Gel Time (180℃, sec) |
60~150 |
| Horizontal Flow (180℃, mm) |
20~25 |
| Gloss (60°) |
≥85% |
| Bending (φ1mm) |
Pass |
| Adhesive (1mm, grade) |
0 |
| Pencil Hardness |
≥1H |
| Impact (50cm) |
Pass |
◎Remarks:
All the polyester resins could be customized to Non-tin (A), anti-gas burners (G), tribo gun (T), and anti-blooming (F).
◎Company Profile:
Kinte Materials Science and Technology Co., Ltd. is subordinate to China Machinery Industry Corporation (a key state-owned enterprise directly managed by SASAC, ranking 284 among the world's top 500 in 2021). It is a national high-tech enterprise under China National Electric Apparatus Research Institute Co., Ltd. (Stock Code: 688128), listed on the SSE STAR MARKET. Focusing on the R & D, production, and sales of environmentally friendly coatings (powder coatings, waterborne industrial coatings) and powder coating resins, the company is committed to improving the global market competitiveness of China's environmentally friendly coating industry. Now it has become the leader and promoter in China’s technological development of environmentally friendly coatings as well as polyester resins for powder coatings!
In 2017, the new production base with 80000 tons annual capacity was put into construction in Dongguan, Guangdong, and the annual production capacity reached 120000 tons by the end of 2020, opening the road to global diversified development.
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Super Fast Cure TGIC Powder Coating Polyester Resin For In Coil Or PCM Images
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