93/7 Saturated Polyester Resin for Textured Powder Coatings

• Customization: Available
• CAS No.: 25135-73-3
• Formula: /
• Model NO.: NH3309T
• EINECS: /
• Molecular Principal Chain: High-Molecular Polymer
• Color: White
• Ratio: 93/7
• Type: Polyester/Tgic Type
• Acid Value (Mgkoh/G): 30-35
• Transport Package: 25kg/Bag
• Trademark: KINTE
• Origin: China
• HS Code: 3907999000
• Production Capacity: 80000 Tons Per Year

Product Description

93:7 Saturated Polyester Resin with Excellent Leveling for TGIC Powder Coatings
NH3309T is a saturated polyester resin, mainly used in polyester/TGIC powder coating systems, with excellent leveling. It can also be used with acrylic matting resin or other physical matting agents to make low-gloss or matt coatings with good results.
Models with a T indicate powder coatings made with this polyester resin that can be sprayed with a friction gun.
At present, the common powder coating spraying processes are electrostatic spraying and friction gun spraying. Electrostatic spraying is widely used in China because of its low requirements for powder coatings. However, due to the Faraday cage (shielding) effect, there will be dead corners on complex workpieces, and some corners are difficult to powder.
Although the electrostatic gun has been improved many times, the Faraday cage effect can only be reduced, but cannot be avoided. The friction gun spraying can well solve the problem of powder coating in the dead corner of complex workpieces, but it also puts forward higher requirements for the electrification of powder coatings.
The working principle of the friction gun is to use frictional electrification to charge the powder. The charge is generated by the collision, friction, contact, and clutching between the powder and the special polymer material and nylon in the gun wall. The driving force is the airflow.
NH3309T is a friction-type polyester resin, which has a very good effect on frictional electrification. It is used by customers at home and abroad, and the effect is very ideal.


Basic Features
Friction gun version of NH3309
Excellent leveling
Good weather resistance
Excellent mechanical properties
Outstanding resistance to yellowing


Recommend Formulation:   

NH3309T	TGIC	Filler & Pigment	Leveling Agent	Benzoin	701
558	42	383	8	4	5

Specifications:

Appearance	White or Light Yellow Transparent Flakes
Acid Number (mgKOH/g)	30~35
Softening Point (ºC)	100~110
Glass Transition Temp. ( ºC)	~60
Melting Viscosity (ICI, mPa·s/200ºC)	2900~4100
Reactivity at 180ºC (s, 7% TGIC)	300~400
Curing Requirement	200ºC*10-15min
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)	440~550
	Horizontal Flow (180ºC, mm)	28~31
	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
NH3305	93/7	200ºC*10min	31~35	4600~6200	~65	160-280	General purpose resin. Cost-effective.
NH3306	93/7	200ºC*10min	31~36	8200~9800	~69	140-200	Excellent storage stability, good heat resistance and anti-yellowing. Suitable for sand texture and wrinkle texture powder coatings.
NH3307	93/7	200ºC*10minn	30~35	4000~6000	~67	200-260	General purpose resin for aluminum profile powder coatings with high Tg, outstanding flow and excellent outdoor durability.
NH3308	93/7	200ºC*10min	30~36	4500~6000	~65	200-300	General purpose resin for low gloss powder coatings with good outdoor durability and mechanical properties.
NH3309	93/7	200ºC*15min	30~35	2900~4100	~60	300-400	Excellent flow, good chemical resistance.
NH3309C	93/7	200ºC*15min	29~35	3500~4200	~60	380-450	Excellent flow, enhanced outdoor durability.

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.