Kinte Materials Science and Technology Co.,Ltd
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Tin-free Hybrid Polyester Epoxy Resin with Excellent Extinction Performance
◎Introduction
HH2583A is a saturated polyester resin, the tin-free version of HH2583. Mainly used for 50/50 polyester/epoxy hybrid powder coatings systems.
Models with an A indicate that this polyester resin is tin-free, which is mainly prepared by using tin-free catalysts.
As a new type of environment-friendly coating, powder coating has become the most promising coating in the world due to its excellent characteristics. With the continuous improvement of people's living standards and changes in aesthetics, the amount of low-gloss powder coatings shows a larger upward trend; high-end matt coatings, with their naturalness, nobility and elegance, attract consumers. The surface can conceal minor paint film defects, making the appearance uniform and more user-friendly.
HH2583A features excellent extinction performance, ideal for making low gloss powder coatings.
◎Basic Features
Excellent extinction performance
Good mechanical properties and storage stability
Not recommended for the preparation of high gloss powder coatings
◎Recommend Formulation:
| HH2583A | E12 | Filler ＆ Pigment | Leveling Agent | Benzoin | 701 |
| 300 | 300 | 383 | 8 | 4 | 5 |
◎Specifications I
| Appearance | White or Light Yellow Transparent Flakes |
| Acid Number (mgKOH/g) | 69～76 |
| Softening Point (℃) | 100～110 |
| Glass Transition Temp. ( ℃) | ～55 |
| Melting Viscosity (ICI, mPa·s/200℃) | 3500～5500 |
| Reactivity at 180℃ (s, 50% E-12) | 150～250 |
| Curing Requirement | 180℃/15min or 200℃/10min |
| Packaging | PE Bags, Net Weight 25kg ± 0.1kg / bag |
◇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) | 180~300 |
| Horizontal Flow (180℃, mm) | 26~29 |
| Gloss (60°) | ≥80% |
| Bending (φ1mm) | Pass |
| Adhesive (1mm, grade) | 0 |
| Pencil Hardness | ≥1H |
| Impact (50cm) | Pass |
◎More Code
| Code | Ratio | Cure Cycle | AV (mgKOH/g) | Viscosity (mPa.s/200℃) | Tg (℃) | Reactivity (s/180℃) | Properties |
| HH2581 | 50/50 | 180℃*10min | 67~75 | 2000~3500 | ~55 | 100-200 | For fast cure formulation. Excellent flow and good mechanical properties. |
| HH2582 | 50/50 | 180℃*15min | 67~75 | 2000~3000 | ~59 | 150-250 | Good flow and heat resistance, high gloss, excellent chemical resistance. Suitable for metallic powder coatings. |
| HH2582A | 50/50 | 180℃/15min or 200℃/10min | 65~75 | 1800~3800 | ~54 | 200-320 | The tin-free version of HH2582A |
| HH2583 | 50/50 | 180℃*15min | 67~75 | 3500~5500 | ~55 | 150-250 | Suitable for low gloss powder coatings. Good flow and film fineness, excellent mechanical properties. |
| HH2585 | 50/50 | 180℃*15min | 67~75 | 2000~3500 | ~57 | 100-200 | Economic resin. Suitable for heat transfer print powder coatings with good mechanical properties. |
| HH2586 | 50/50 | 180℃*15min | 68~80 | 5000~8500 | ~60 | 120-200 | Fast cure, excellent flexibility and impact resistance. |
◎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!
We have gained ISO9001 and ISO14000, ISO18001, RoHS, UL certification and QUALICOAT Certificate. Due to the excellent and stable quality, our products always enjoy high reputation at home and oversea, and were sold to more than 30 countries.
Polyester resin branch was founded in 2000, now there are two factories (DongGuan factory and TaiXing Factory) with annual production capacity over 80,000 tons, and the annual production capacity reached 120000 tons by the end of 2020, opening the road to global diversified development. Our clients include many top-tier powder manufacturers in the world such as AKZO, PPG, TIGER, PROTECH, NIPPON, OXYPLAST, JOTUN, SHERWIN, VALSPAR, SINTERPLAST, etc.
We unremittingly stick at the business principle of “Quality is the life, adhere to first-class technology, first-class quality, first-class cost and first-class brand”. We would like to provide a complete set of services and solutions for both domestic and abroad customers and would like to go forward to brilliant future with you together.