70/30 Polyester Epoxy Resin for Low Curing Powder Coating

• CAS No.: 25135-73-3
• Formula: /
• EINECS: /
• Molecular Principal Chain: High-Molecular Polymer
• Color: White
• Ratio: 70:30
• Model NO.: HH2762
• Type: Hybrid System
• Acid Value (Mgkoh/G): 29-35
• Transport Package: 25kg/Bag
• Trademark: KINTE
• Origin: China
• HS Code: 3907999000
• Production Capacity: 80000 Tons Per Year

Product Description

Low Temperature Cure Powder Coating Polyester Resin for Hybrid Powder Coatings
HH2762 is a carboxyl polyester resin designed for 70/30 hybrid low temperature curing powder coatings.
In recent years, natural disasters caused by global warming have become more and more frequent, prompting the continuous improvement of people's environmental awareness and environmental protection standards. Powder coating fully conforms to the internationally popular 4E (economic, environmental protection, high efficiency, and excellent performance) principles. The energy-saving and emission reduction advantages of low-temperature curing powder coatings are more prominent, and they have attracted widespread attention in the industry and become the development direction of powder coatings.
The film-forming and curing temperatures of ordinary powder coatings are 180~220ºC, and the baking time is 15~25min. The curing time of HH2762 is 160ºC for 10-15 minutes. Compared with traditional high-temperature curing powder coatings, the film-forming temperature is lower, which can save a lot of energy. Some data show that every 10°C drop in the curing film-forming temperature of the coating can save about 10% of energy.


Basic Features
Outstanding mechanical properties
Good Chemical resistance
TMA free


Recommend Formulation:   

HH2762	014U	TiO2 (R760)	BaSO4 8000	Leveling	Benzoin	701
210	90	102	90	4	2	2.5

Specifications:

Appearance	white or light yellow transparent flakes
Color (50%DMF)	max:3
Acid Value (mgKOH/g)	29~35
Softening Point (ºC)	98~103
Glass Transition Temp. (ºC)	~53
Melting Viscosity (200ºC, cone/plate, mPa·s)	3500~5500
Reactivity at 180ºC (s, 30% Epoxy)	70~150
Curing Requirement	160ºC×10~15min
Packaging	PE Bags, Net Weight 25kg ± 0.1kg / bag

Specifications II:

Extrusion Condition	Two-screw Extruder
	Zone I: 90~110ºC	Zone II: 110~120ºC
	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 (180ºC, sec)	70~160
	Horizontal Flow (180ºC, mm)	20~24
	Gloss (60°)	≥90%
	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!

We have gained ISO9001 and ISO14000, ISO18001, RoHS, UL certification, and QUALICOAT Certificates. Due to the excellent and stable quality, our products always enjoy a high reputation at home and overseas, and were sold to more than 30 countries.

The polyester resin branch was founded in 2000, now there are two factories (DongGuan factory and TaiXing Factory) with an annual production capacity of 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 to 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 a brilliant future with you together.