95/5 Saturated Haa Polyester Resin for Anti-Yellowing Primid Powder Coatings

• CAS No.: 25135-73-3
• Formula: /
• EINECS: /
• Molecular Principal Chain: High-Molecular Polymer
• Color: White
• Ratio: 95/5
• Model NO.: NH6586P
• Type: Polyester/Haa Type
• Acid Value (Mgkoh/G): 30-37
• Transport Package: 25kg/Bag
• Trademark: KINTE
• Origin: China
• HS Code: 3907999000
• Production Capacity: 80000 Tons Per Year

Product Description

95/5 HAA Polyester Resin with Outstanding Anti-yellowing for Primid Powder Coatings
NH6586P is a saturated polyester resin, mainly used in polyester/primid powder coating systems.
Powder coating, as the name implies, is a powder coating. During the coating process, it is firstly adsorbed or accumulated on the surface of the substrate in a loose structure by electrostatic spraying. After the spraying is completed, the workpiece enters the hot drying tunnel, the substrate and the coating are heated and melted and flowed, and the original loose structure or accumulation pattern is destroyed with the melting and flow of the powder particles. It should be mentioned in particular that a local vortex effect, known as the Benard vortex, is produced by the liquid flow during film formation. The essence of the Bernard vortex is the change in the surface tension caused by the viscosity change accompanying the melting and solidification of the powder coating, so that the fluid with high viscosity and low surface tension sinks to the middle (concave) of the vortex, while the low viscosity high The surface tension fluid then rises to the perimeter of the vortex (convex) until curing is complete. In this process, the gas (air) in the original loose stacking voids after coating will aggregate to form bubbles and be discharged during the process of powder melting and collapse, and the small molecular gas from the inside of the coating or the substrate will also aggregate to form bubbles and discharged. As the viscosity of the system continues to increase during the curing process, the air bubbles entrained in the Bernard vortex eventually form pinholes during the discharge process. With the increase of the coating film thickness, especially above 120μm, the pinhole problem is especially obvious.


Basic Features
Excellent leveling and weather resistance
Excellent mechanical properties
Outstanding resistance to yellowing
Good thick film pinhole resistance
Excellent storage stability


Recommend Formulation:   

NH6343	T-105	Filler & pigment	Leveling agent	Benzoin	701	703
200	10.5	133	2.8	1.4	1.4	1.4

Specifications:

Appearance	White or Light Yellow Transparent Flakes
Acid Number (mgKOH/g)	30~37
Softening Point (ºC)	98~108
Glass Transition Temp. ( ºC)	~58
Melting Viscosity (ICI, mPa·s/200ºC)	4000±1000
Reactivity at 180ºC (s, 5% T-105)	280±100
Curing Requirement	140ºC×20-25min
Packaging	PE Bags, Net Weight 25kg ± 0.1kg / bag

Specifications II:

Extrusion Condition	Two-screw Extruder
	Jacket Temperature	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)	160~350
	Horizontal Flow (180ºC, mm)	25~31
	Gloss (60°)	≥88%
	Bending (φ1mm)	Pass
	Adhesive (1mm, grade)	0
	Pencil Hardness	≥1H
	Impact (50cm)	Pass

More Code

Code	Ratio	Cure Cycle	AV (mgKOH/g)	Viscosity (mPa.s/200ºC)	Tg (ºC)	Reactivity (s/180ºC)	Properties
NH6582	95/5	180ºC*10min	30~35	4600~6000	~61	150~220	Good storage stability, excellent mechanical properties and good outdoor durability.
NH6583	95/5	180ºC*10min	30~35	2500~3500	~56	200~290	Very good flow, excellent mechanical properties, and pinhole free in thick films.
NH6584	95/5	180ºC*10min	30~36	2200~4200	~60	200~400	Outstanding flow, excellent mechanical properties, cost effeciency.
NH6586-2	95/5	180ºC*10min	30~35	3000~4000	~59	280~480	Good storage stability, excellent flow and mechanical properties.
NH6586PT	95/5	180ºC*10min	30~37	3000~5000	~58	220~340	Good leveling and weather resistance, excellent mechanical properties and anti yellowing, pinhole free in thick films and good storage stability.
NH6587	95/5	180ºC*10min	30~36	5000~7000	~67	120~280	Excellent storage stability and mechanical properties, good outdoor durability and flow.

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.