50/50 Saturated Polyester Resins with Low Curing for Indoor Use Powder Coatings

Applications:

HH2562 is a carboxyl polyester resin designed for 50/50 hybrid powder coatings to be cured at 160℃.

Basic features:

Good leveling, good mechanical properties
Excellent chemical performance
Low curing temperature

Specifications:

Appearance White or light yellow transparent flakes
Color(50%DMF) max:3
Acid number(mgKOH/g): 68～75
Softening point(℃) 95～105
Glass transition temp.( ℃) 45～60
Melting viscosity(ICI, mPa·s/200℃): 1500～3500
Reactivity at 180℃(s, 50% Epoxy): 50～150

Recommend Formulation: HH2562—E12

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

Curing Requirement: 160℃×15-20min

Film Properties:

Gel time(180℃,sec): 60~160
Horizontal flow (180℃,mm): 21~26
Gloss(60°): ≥90%
Bending(φ1mm): pass
Adhesive(1mm,grade): 0
Pencil hardness: ≥1H
Impact(direct,reserve): pass 50kg·cm

Packaging:

PE bags, net weight 25kg±0.1kg / bag
 

 
 

 

 

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.