Excellent Leveling and Suitable for Matt Powder Coating Polyester Resin 93/7 NH3309 in TGIC Cure

◇ Applications:

NH3309 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system with excellent leveling.

It is suitable to mix with acrylic or matting agent to gain low gloss or matt effect for powder coatings.

◇ Basic features:

Excellent leveling

Outstanding deformation resistance

Good chemical and anti-yellowing resistance

Suitable for low gloss or matt powder coatings.

◇ Specifications:

Appearance: Light white or yellow transparent granule

Color (50%DMF): max:2

Acid number(mgKOH/g): 30～35

Softening point(℃): 100～110

Glass transition temp.(℃): ～60

Melting viscosity(200℃, cone/plate, mPa·s): 2900～4100

Reactivity at 180℃(s, 7% TGIC): 300～400

◇ Recommend Formulation: NH3309—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: 50～70μm

Degreased cold-rolled steel 0.5mm

◇ Curing Requirement: 200℃×15~20min

◇ Film Properties:

Gel time(180℃,sec): 440~550

Horizontal flow(180℃,mm)::28~31

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)

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.