Durable 93/7 TGIC Polyester Resin For High Gloss Powder Coatings For Aluminum Profile
Durable 93:7 TGIC Polyester Resin for High Gloss Powder Coatings for Aluminum Profile
◎Introduction
NH3307T is tribo chargerable version of NH3307, a saturated carboxyl polyester resin for polyester/TGIC powder coating system at the ratio 93/7.
NH3307 is our company’s star product. High Tg means high storage stability. It features excellent weathering resistance, so it could be durable for 5 years outdoors. With excellent leveling and anti-yellowing, it’s very suitable to make high gloss powder coatings for aluminum profile.
Models with a T indicate powder coatings made with this polyester resin that can be sprayed with a friction gun.
◎Basic Features
Excellent leveling
Excellent anti-yellowing
Good chemical resistance and mechanical properties
High storage stability
High weathering resistance
Suitable to make high gloss powder coatings for aluminum profile
◎Recommend Formulation:
NH3307T/TGIC
| NH3307T | TGIC | Filler ＆ pigment | Leveling agent | Benzoin | 701 |
| 558 | 42 | 383 | 8 | 4 | 5 |
◎Specifications:
| Appearance | white or pale yellow transparent flakes |
| Acid Value (mgKOH/g) | 30～35 |
| Softening Point (℃) | 103～113 |
| Glass Transition Temp. (℃) | ～67 |
| Melting Viscosity (200℃, cone/plate, mPa·s) |
5000±1000 |
| Reactivity at 180℃ (s, 7% TGIC) |
230±30 |
| Curing Requirement |
200℃×10~15min |
| 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 | ＜100μm | |
| Application Condition | Electrostatic Spraying With | 40～70KV |
| Coating Film Thickness | 50～0μm | |
| Degreased Cold-rolled Steel | 0.5mm | |
| Film Properties | Gel Time (180℃, sec) | 290~390 |
| Horizontal Flow (180℃, mm) | 25~28 | |
| 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), a listed enterprise 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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