93/7 Saturated Polyester Resins With Excellent Bending Resistance for Coil Powder
◎Introduction
PC3303 is saturated polyester resin, mainly used for polyester/TGIC powder coatings system.
◎Basic Features
Ultra-high flexibility, suitable for coil powder;
Excellent chemical resistance;
Good anti-yellowing performance;
Good storage stability.
◎Recommend Formulation:
| PC3303 | TGIC | Filler ＆ Pigment | Leveling Agent | Benzoin | 701 |
| 300 | 22.6 | 145 | 3.6 | 1.8 | 1.8 |
◎Specifications I
| Appearance | White or Light Yellow Transparent Flakes |
| Acid Number (mgKOH/g) | 30～37 |
| Glass Transition Temp. ( ℃) | ～60 |
| Melting Viscosity (ICI, mPa·s/200℃) | 3500～6500 |
| Reactivity at 180℃ (s, 7% TGIC) | 50～150 |
| Curing Requirement | 200℃/1.5min |
| 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: 50～60μm
Degreased cold-rolled steel: 0.5mm
◇Film Properties:
| Gel Time (180℃, sec) | 60~150 |
| Horizontal Flow (180℃, mm) | 19~25 |
| Gloss (60°) | ≥85% |
| Bending (φ1mm) | Pass |
| Adhesive (1mm, grade) | 0 |
| Pencil Hardness | ≥1H |
| Impact (50cm) | Pass |
| Frozen T-Bend (-30℃, 24h) | 0T |
◎More Code
| Code | Ratio | Cure Cycle | AV (mgKOH/g) | Viscosity (mPa.s/200℃) | Tg (℃) | Reactivity (s/180℃) | Properties |
| NH3362 | 93/7 | 160℃*15min | 31~36 | 3700~5300 | ~62 | 40-100 | For low bake powder coatings with excellent blooming resistance and outdoor durability, suitable for engineering machinery. |
| NH3363 | 93/7 | 160℃*10min | 31~36 | 3700~5300 | ~60 | 40-100 | General purpose resin to be cured at 160℃. Good flow, good outdoor durability and mechanical properties. |
| NH3365 | 93/7 | 160℃*15min | 31~36 | 4500~6500 | ~63 | 80-180 | General purpose resin to be cured at 160℃. Very good flow, excellent outdoor durability and mechanical properties. |
| NH3366 | 93/7 | 160℃*15min | 31~36 | 4500~6500 | ~62 | 80-180 | For low bake powder coatings with excellent blooming resistance and outdoor durability, suitable for engineering machinery. |
◎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.
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