Kinte Materials Science and Technology Co.,Ltd
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Excellent Leveling Polyester Resin NH3309 TGIC Cure and Suitable for Matt Powder Coating
◇ Applications:
NH3309 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system with excellent leveling.
It is also suitable to mix with acrylic or matting agent to produce low gloss or matt powder coatings.
◇ Basic features:
Excellent leveling
Outstanding mechanical properties
Good chemical resistance and anti-yellowing
◇ Specifications:
Appearance: Light white or yellow transparent flakes
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
| NH3309 | TGIC | Filler ＆ pigment | Leveling agent | Benzoin | 701 |
| 558 | 42 | 383 | 8 | 4 | 5 |
◇ 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)
