Dry Blended Polyester Resin for High Flexibility Powder Coatings

• CAS No.: 25135-73-3
• Formula: /
• EINECS: /
• Molecular Principal Chain: High-Molecular Polymer
• Color: White
• Ratio: 90/10 & 95/5
• Model NO.: NH0004 & NH0504
• Type: Dry-Blended Tgic Polyester Resins
• Acid Value (Mgkoh/G): 49-55 and 20-25
• Transport Package: 25kg/Bag
• Trademark: KINTE
• Origin: China
• HS Code: 3907999000
• Production Capacity: 80000 Tons Per Year

Product Description

Blended Polyester Resin with High Flexibility for Powder Coatings in Coil Field
NH0004 and NH0504 are high and low acid value polyester resins with high flexibility respectively, which are used in polyester/TGIC powder coating systems. Using NH0004 and NH0504 to make powder respectively and then dry mixing to make high flexibility outdoor semi-gloss powder coating, suitable for coil field.
At present, the application fields of powder coatings are constantly expanding, and powder coatings have begun to be used in metal doors and windows, coiled materials, metal furniture, automotive springs and other components. The coating process in these parts of the field is different from the existing mainstream coating process. The new coating process is mainly to spray the powder coating on the surface of the workpiece, and then bend it. This requires the cured coating to be It has excellent mechanical properties such as high toughness and bending resistance within a certain period of time.
Powder coatings prepared by dry-mixing of NH0004 and NH0504 have high toughness and excellent bending resistance after a few months.


Basic Features
Excellent bending properties
Good dry blend matting performance and leveling
good storage stability
Excellent chemical resistance


Recommend Formulation: 

Formulation	NH0004	NH0504	TGIC	TiO2	BaSO4 228Ba	Leveling Agent	Benzoin
I	270	-	30	102	92	4	2
II	-	285	15	102	92	4	2

Specifications:

Items	NH0004	NH0504
Appearance	Pale yellow flake	Pale yellow flake
Color (50% DMF)	≤6	≤6
Acid Number (mgKOH/g)	49~55	20~25
Softening Point (ºC)	102~120	103~120
Glass Transition Temp. (ºC)	~61	~62
Melting Viscosity (ICI, mPa·s)	2800±1500	8000±1500
Reactivity s (180ºC, TGIC)	100±50	250±100
Curing Requirement	200ºC×10min
Packaging	PE Bags, Net Weight 25kg ± 0.1kg / bag

Specifications II:

Extrusion Condition	Two-screw Extruder	110~120ºC
	Speed of Revolution	500~1200rpm
	Fineness of Powder	<100μm
	Extrude NH0004 and NH0504 respectively according to the formula, and mix and pulverize in a ratio of 1:1 to make powder.
Application Condition	Electrostatic Spraying With	40~70KV
	Coating Film Thickness	70~90μm
	Degreased Cold-rolled Steel	0.5mm
Film Properties	Gloss (60°)	30% - 50%
	Bending (φ1mm)	Pass
	Adhesive (1mm, grade)	0
	Pencil Hardness	≥1H
	Impact (50cm)	Pass

More Code

Code	Ratio	Cure Cycle	Acid Value (mgKOH/g)	Viscosity (mPa.s/200ºC)	Tg (ºC)	Reactivity (s/180ºC)	Properties
NH9001	90/10	200ºC*10min	46~54	4300~5900	~65	25-75	Dry-blended for low gloss super durable powder coatings with good anti-yellowing. It could be used in HAA system also.
NH9508	95/5	200ºC*10min	19~25	4500~5500	~63	270-390
NH0004	90/10	200ºC*10min	49~55	1300~4300	~61	50-150	Ecomomic resin. Dry-blended for  outdoor semi-gloss powder coating with high flexibility for coil field.
NH0504	95/5	200ºC*10min	20~25	6500~9500	~62	150-350

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.