Excellent Boiling Resistance 93/7 TGIC Polyester Resin Powder Coatings
◎Introduction
NH3408 is a saturated polyester resin designed for TGIC powder coating systems. It features outstanding leveling performance, excellent extinction, mechanical and boiling resistance, good storage stability, suitable for matte/high gloss powder coatings.
In today's market, powder coating is a widely used material. Unlike general solvent-based coatings and water-based coatings, powder coatings do not use a solvent as a dispersion medium but rely on air as a dispersion medium. Therefore, pollution is reduced, the environment is improved, and the health of operators is guaranteed.
According to the different gloss levels of powder coatings, there are high-gloss, flat, matte, and low-gloss types. The gloss of high-gloss powder coatings is generally greater than 75GU, while the flat type is between 45GU and 75GU. Between 10GU and 45GU is matte type, and the low-gloss powder coating is below 10GU. In addition, the powder coatings used in different environments are also different. For example, high-gloss powder coatings are mainly used outdoors, are relatively temperature-resistant, and are often used on air conditioners or street lamps; matte powder coatings are mainly used indoors, it’s not harmful to people's eyes.
◎Basic Features
Outstanding leveling performance
Excellent extinction, mechanical and boiling resistance
Good storage stability
Suitable for matte/high gloss powder coatings
◎Recommend Formulation:
| NH3408 |
TGIC |
Filler ＆ pigment |
Leveling agent |
Benzoin |
701 |
| 564 |
36 |
383 |
8 |
4 |
5 |
◎Specifications I:
| Appearance |
White or light yellow transparent flakes |
| Acid Number (mgKOH/g) |
27～32 |
| Softening Point (℃) |
101～115 |
| Glass Transition Temp. (℃) |
～65 |
| Melting Viscosity (ICI, mPa·s/200℃) |
6000±1000 |
| Reactivity at 180℃ (s, 6% TGIC) |
260±80 |
| Curing Condition |
200℃×10~15min |
| Packaging |
PE Bags, Net Weight 25kg ± 0.1kg / bag |
◎Specifications II:
| Extrusion Condition |
Two-screw Extruder |
| Jacket temperature |
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) |
260~420 |
| Horizontal Flow (180℃, mm) |
25~29 |
| 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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