93/7 Haa Dry Blended Polyetser Resin for Primid Powder Coating

• Customization: Available
• CAS No.: 25135-73-3
• Formula: /
• Model NO.: NH6381
• EINECS: /
• Molecular Principal Chain: High-Molecular Polymer
• Color: White
• Ratio: 93/7
• Type: Polyester/Primid Type
• Acid Value (Mgkoh/G): 47-54
• Transport Package: 25kg/Bag
• Trademark: KINTE
• Origin: China
• HS Code: 3907999000
• Production Capacity: 80000 Tons Per Year

Product Description

93/7 HAA Dry Blended Polyetser Resin for Powder Coating with Low Gloss
NH6381 are saturated carboxyl polyester resins for low gloss polyester/primid (93:7) powder coatings by dry blending procedure.
At present, powder coatings for outdoor use are usually cured with TGIC. However, due to the physiological toxicity of TGIC, it has been banned by the European Union and other places. Therefore, the use of environmentally friendly and non-toxic HAA to replace TGIC has become the trend in the powder coating industry.
With the change in people's aesthetic concepts and the problem of light pollution caused by high-gloss coatings, matte powder coatings that can produce soft surface effects are more and more widely used.
Dry-blending matting method is a commonly used method for preparing matte powder coatings. This method uses different polyesters with large differences in reactivity during the curing process. Due to the difference in reactivity, the coating surface produces a microscopically rough surface to achieve a matting effect. The gloss of 18-45 can be obtained without adding a matting aid, and the overall cost is low.


Basic Features
Low gloss film
Excellent mechanical properties
Good leveling, good storage stability
Good chemical resistance, fine anti-yellowing


Recommend Formulation:   

Formulation	NH6381	NH6688	T-105	Filler & pigment	Leveling agent	Benzion
I	200	-	15	150	2.4	1.2
II	-	200	7.5	150	2.4	1.2

Specifications:

Appearance	pale yellow flakes
Color (50% DMF)	≤3
Acid Number (mgKOH/g)	47~54
Softening Point (ºC)	98~118
Glass Transition Temp. (ºC)	~56
Melting Viscosity (200ºC, cone/plate, mPa·s)	2800±1000
Reactivity at 180ºC (s, XL552)	90±30
Curing Requirement	180ºC×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	50~80μm
	Degreased Cold-rolled Steel	0.5mm
Film Properties	Gloss (60°)	≤40%
	Bending (φ2mm)	Pass
	Adhesive (1mm, grade)	0
	Pencil Hardness	≥1H
	Direct Impact Resistance	pass 50kg·cm

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.