Multipurpose Saturated Polyester Resins thermosetting With Excellent Leveling

Polyester Resin NH8309 with Excellent Leveling for Transparent Powder Coating

◇ Applications:

NH8309 is a saturated carboxyl 93/7 polyester resin for polyester/TGIC powder coating system.

Advantages of powder coatings

1. Health and environmental protection

All kinds of liquid chemical harmful film-forming, dispersion, wetting, leveling, anti-corrosion and anti mildew additives added to achieve coating performance are omitted.

2. Convenient transportation and storage

Ordinary coatings contain about 20-50% water or solvent, while powder coatings are completely solid without water or solvent, which is convenient and safe for transportation. In addition, coatings containing water or solvent tend to freeze when the transportation and storage temperature is lower than 0 ℃. This problem does not exist in powder coatings.

3. No preservative is required

In the traditional liquid coating, there is both water and bacterial food, which is easy to be polluted by bacteria. Therefore, in order to prevent deterioration, preservatives should be added, while latex powder coatings have no bacterial pollution and do not need preservatives

4. Paint smell

Compared with the general traditional coating smell residue, this coating can disperse quickly, which can be said to disappear immediately.

◇ Basic features:

High grade of transparency, available for high-level transparent powder coating

Extraordinary leveling and flow

Amazing gloss(≥88%, 60°)

Good weathering resistance

◇ Specifications:

Appearance white or pale yellow transparent flakes

Color (50%DMF): max: 2

Acid number(mgKOH/g): 32～36

Softening point(℃): 103～113

Glass transition temp.(℃): ～64

Melting viscosity(200℃, cone/plate, mPa·s): 4000～6000

Reactivity at 180℃(s, 7% TGIC): 390～510

◇ Recommend Formulation: NH8309—TGIC

◇ Extrusion Condition:

Two-screw extruder

Zone I: 90～110℃ Zone II: 110～120℃

Speed of revolution: 500～1200rpm

Fineness of powder: ＜100μm

◇ Application Condition:

Electrostatic spraying with: 40～70KV

Film thickness: 70～90μm

Degreased cold-rolled steel 0.5mm

◇ Curing Requirement: 200℃×15min

◇ Film Properties:

Gel time(180℃,sec): 450~700

Horizontal flow:(180℃), mm: 27~30

Gloss(60°): ≥88%

Bending(φ1mm): Pass

Adhesive(1mm,grade): 0

Pencil hardness: ≥1H

Impact (50cm): pass

◇ Packaging:

PE bags, N.W. 25KG±0.1KG / bag

Remarks:

All the polyester resins could be customizes to Non-tin (A) ,anti gas burners(G),tribo gun(T) and anti-blooming(F)

The consistency and stability of products are guaranteed through rigorous quality inspection.

According to industry statistics, in 2014, KINTE polyester resin output ranked third in the national industry, becoming a well-known brand and technical leader in the field of polyester resin for powder coatings in China.
The market share in Guangdong province exceeds 50%, and the sales volume ranks the top two in China, and is exported to Southeast Asia, the Middle East, Russia and other regions and countries.