Good Comprehensive Performance Polyester Epoxy Resin For 70/30 Hybrid Powder Coatings
Good Comprehensive Performance Polyester Epoxy Resin for 70/30 Hybrid Powder Coatings
◎Introduction
HH2783T is tribo chargerable of HH2783T, a carboxyl polyester resin designed for 70/30 hybrid powder coatings.
Models with a T indicate powder coatings made with this polyester resin that can be sprayed with a friction gun.
Powder coating has the following advantages:
- Powder means no solvent waste and is therefore more environmentally friendly. Powder coatings do not contain volatile organic compounds or solvents.
- Powder means no waste disposal issues.
- Powder helps reduce air pollution.
- Powder helps reduce health hazards to operators.
- Powder reduces fire risk.
- Processing time is reduced.
- Lower energy requirements compared to solvent-based stoving coatings.
- Lower energy requirements compared to water-based paints.
- Powder coating ready to use.
- Powder with excellent film properties.
- Damaged parts are easily repaired.
- Reduce air conditioning requirements and save more money.
- Powder utilization 95%.
- With powder you can control the film thickness.
- Variety of paints and effects available.
- Little training required for powder operators.
- The powder is cleaner to use.
- Lower cost of powder coating equipment.
- Powder is flexible and can coat non-metallic surfaces.
◎Basic Features
Excellent mechanical properties
Good leveling
Good comprehensive performance
◎Recommend Formulation:
| HH2783T | E-12 | Filler ＆ pigment | Leveling Agent | Benzoin | Leveling additive 701 |
| 420 | 180 | 383 | 8 | 4 | 5 |
◎Specifications:
| Appearance | white or light yellow transparent flakes |
| Color (50% DMF) | Max: 2 |
| Acid Value (mgKOH/g) | 29～35 |
| Softening Point (℃) | 98～110 |
| Glass Transition Temp. (℃) |
～57 |
| Melting Viscosity (200℃, cone/plate, mPa·s) |
5500±1000 |
| Reactivity at 180℃ (s, 30% Epoxy) |
240±60 |
| Curing Requirement |
180℃×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) | 180~300 |
| Horizontal Flow (180℃, mm) | 24~27 | |
| 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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