Excellent Leveling TGIC Polyester Resin for Matte Powder Coatings
◎Introduction
NH3407 is a saturated carboxyl polyester resin for the polyester/TGIC powder coating system. It features excellent impact resistance, excellent extinction performance, and excellent leveling, suitable for matte powder coatings.
Film gloss (%) is an important index for powder coatings. Glossiness refers to the ability of the surface of an object to reflect light when the light is reflected on the surface of the object.
In the past, the high-gloss bright powder coating was favored by consumers because of its bright color and brightness. However, with the continuous improvement of people's living standards, consumers felt that the reflection of high-gloss bright powder coating was more serious after film formation, which was harmful to the eyes people; at this time, the high-grade matt powder coating, with its natural, noble, elegant and other characteristics, has attracted the majority of consumers.
Due to its excellent extinction performance, the TGIC polyester resin NH3407 is very suitable for matt powder coatings.
◎Basic Features
Excellent impact resistance
Excellent extinction performance
Excellent leveling
Suitable for matte powder coatings
◎Recommend Formulation:
| Materials |
NH3407 |
TGIC |
Pigment & Filler |
Leveling agent |
Benzoin |
701 |
| Formula |
564 |
36 |
383 |
8 |
4 |
5 |
◎Specifications I:
| Appearance |
White or light yellow transparent flakes |
| Acid Number (mgKOH/g) |
27～31 |
| Softening Point (℃) |
103～115 |
| Glass Transition Temp. (℃) |
～63 |
| Melting Viscosity (ICI, mPa·s/200℃) |
4500～6500 |
| Reactivity at 180℃ (s, 6% TGIC) |
200±50 |
| Curing Condition |
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 |
50～70μm |
| Degreased Cold-rolled Steel |
0.5mm |
| Film Properties |
Gel Time (180℃, sec) |
200~320 |
| Flow (180℃, mm) |
26~29 |
| 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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