70/30 Polyester Resins for Thermosetting Hybrid Powder Coatings

• CAS No.: 25135-73-3
• Formula: /
• EINECS: /
• Molecular Principal Chain: High-Molecular Polymer
• Color: White
• Ratio: 70:30
• Model NO.: HH2783
• 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

Thermosetting 70:30 Polyester Powder Coating Resins for General Purpose
HH2783 is a carboxyl polyester resin designed for 70/30 hybrid powder coatings, which are mainly used indoors, such as household appliances, metal furniture, instrumentation, indoor fitness equipment, radiators, etc.
Powder coating is a new type of solvent-free 100% solid powder coating. It comes in two broad categories: thermoplastic powder coatings and thermoset powder coatings. The coating is prepared by mixing resin, pigments and fillers, curing agent and other additives in a certain proportion, and then through hot extrusion, crushing and sieving. They are stable in storage at room temperature. After electrostatic spraying or fluidized bed dipping, they are heated, baked, melted and solidified to form a smooth and bright permanent coating for decoration and anti-corrosion purposes.


Basic Features
Excellent Mechanical Properties
Good Leveling
Good Comprehensive Performance


Recommend Formulation:   

HH2783	E12	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 Number (mgKOH/g)	29~35
Softening Point (ºC)	98~110
Glass Transition Temp. ( ºC)	~57
Melting Viscosity (ICI, mPa·s/200ºC)	5500±1000
Reactivity at 180ºC (s, 30% Epoxy)	240±60
Curing Requirement	180ºC×15min
Package	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)	180~300
	Horizontal Flow (180ºC, mm)	24~27
	Gloss (60°)	≥85%
	Bending (φ1mm)	Pass
	Adhesive (1mm, grade)	0
	Pencil Hardness	≥1H
	Impact (50cm)	Pass

More Codes:

Code	Ratio	Cure Cycle	AV (mgKOH/g)	Viscosity (mPa.s/200ºC)	Tg (ºC)	Reactivity (s/180ºC)	Properties
HH2781	70/30	180ºC*10min	30~36	4500~6500	~56	120-240	Economic resin. Fast Cure, good flow and impact resistance. TMA free.
HH2781T	70/30	180ºC*10min	30~36	4000~5500	~55	100-200	HH2781T is tribo chargerable of HH2781.
HH2782G	70/30	180ºC*15min	29~35	5800~7000	~60	180-280	Good storage stability, good balance of properties. TMA free.
HH2783	70/30	180ºC*15min	29~35	4500~6500	~57	180-300	General purpose resin. Excellent mechanical properties, good flow, good balance of properties.

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.