General Purpose TGIC Polyester Resins for Low Gloss Powder Coatings Outdoors

◎Introduction

NH3308 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system, designed as general purpose resin for low gloss powder coatings with good outdoor durability and mechanical properties.

At present, our country's powder coatings have basically achieved the goal of zero emission, which is one of the varieties of environmentally friendly coatings and one of the development directions of the global coatings industry. The production technology of powder coatings is very mature. The product yield of powder coatings exceeds 95%, and ≤5% of ultra-fine waste powder produced in production can be reused in the production of powder coatings after being recovered by the system, basically achieving zero emissions and no harm to the environment.

From the coating technology of powder coatings, the one-time powder coating rate of powder coatings reaches more than 70%. The oversprayed powder is recovered by the system and returned to the powder supply bucket, and is mixed with new powder in a certain proportion and reused. Therefore, the powder comprehensive utilization rate of coatings is over 95%. The remaining 5% of the waste powder is generally recycled by the coating company, and then handed over to the powder coating manufacturer for reprocessing before use, basically achieving zero emissions.

As we all know, the film thickness of solvent-based coatings is generally about 20um. In order to achieve the decorative and protective properties of the coating film, solvent-based coatings often need to be painted multiple times, such as three coats of bottom, middle, and surface. After all, it needs to be heated and cured, and the energy consumption is high.

In contrast, TGIC powder coatings are characterized by thick coating, and a thick coating of 60-120um can be formed with only one coating, and the coating only needs to be cured once, thus greatly saving the energy consumption of coating curing. The conventional curing conditions for powder coatings are 180-200°C, 10-20min. In order to achieve the sustainable development of powder coatings, TGIC powder coatings that can be cured at 135-140°C have been developed in recent years, which provides a solid foundation for the sustainable development of powder coatings.

◎Basic Features

Excellent Leveling

Excellent Mechanical Properties

Good Storage Stability

Good Weathering Resistance

Good Extinction Performance

◎Recommend Formulation:

◎Specifications I

◇Extrusion Condition:

Two-screw Extruder

Jacket Temperature: 110～120℃

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:

◎More Code

◎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 Certificate. Due to the excellent and stable quality, our products always enjoy high reputation at home and oversea, and were sold to more than 30 countries.

Polyester resin branch was founded in 2000, now there are two factories (DongGuan factory and TaiXing Factory) with annual production capacity 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 at 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 brilliant future with you together.