93/7 Durable TGIC Polyester Resin For High Gloss Powder Coating

93/7 Durable TGIC Polyester Resin for High Gloss Powder Coating

Applications

NH3307 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system at the ratio 93/7.

Excellent flowability and durability, suitable for aluminum profile powder coatings.

Basic features:

Excellent leveling

Excellent anti-yellowing

Good chemical resistance and mechanical properties

High storage stability;

High weathering resistance

Suitable to make high gloss powder coatings for aluminum profile.

 Specifications:

Appearance white or light yellow transparent flakes

Color (50%DMF): max: 1

Acid number(mgKOH/g): 30～36

Glass transition temp.(℃): ～69

Melting viscosity(200℃, cone/plate, mPa·s): 5500~7000

Reactivity at 180℃(s, 7% TGIC): 180~360

 Recommend Formulation:

NH3307P—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: 50～100μm

Degreased cold-rolled steel 0.5mm

 Curing Requirement: 200℃×10min

 Film Properties:

Gel time(180℃,sec) 210~400

Horizontal flow(180℃,mm): 25~28

Gloss(60°): ≥85%

Bending(φ1mm): Pass

Adhesive(1mm,grade): 0

Pencil hardness ≥1H

Impact (50cm) pass

 Packaging:

PE bags, N.W. 25KG±0.1KG / bag

Kinte has domestic first-class polymer material R & D and testing equipment. As an industry central enterprise integrating the advantages of powder, liquid coating and resin industry chain in China, Optimus materials shoulders the important task of national technological innovation, energy conservation and emission reduction and environmental friendliness. It has successively undertaken more than 40 scientific and technological projects of the Ministry of science and technology, the Commission of industry and information technology and provincial and urban areas, won more than 30 national provincial and urban science and technology awards, and now has more than 50 authorized invention patents.