Kinte Materials Science and Technology Co.,Ltd
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Fast Curing Stable Anti-yellowing NH3383 Polyester Resin for Powder Coating
◇ Applications:
NH3383 is a saturated carboxyl polyester resin for applications of polyester/TGIC powder coating system. Through the modification of polyester resin, the heat resistance and weather resistance of powder coating are improved greatly. Atthe same time, the synthetic direction of polyester resin is expanded and the application field is widened.
◇ Basic features:
Fast curing speed
Fineleveling
Outstanding mechanical properties
Excellent chemical resitance and anti-yellowing
Good storage stability
◇ Specifications:
Appearance: white or light yellow transparent flakes
Color(50%DMF): max:2
Acid number(mgKOH/g): 30～35
Softening point(℃) 103～113
Glass transition temp.( ℃) ～67
Melting viscosity(200℃, cone/plate, mPa·s): 5000±1500
Reactivity at 180℃(s, 7% TGIC) 130±30
◇ Recommend Formulation: NH3383—TGIC
| NH3383 | 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
Coating film thickness: 50～100μm
Degreased cold-rolled steel 0.5mm
◇ Curing Requirement: 180℃×12min
◇ Film Properties:
Gel time(180℃,sec) 130~230
Horizontal flow(180℃,mm): 22~25
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
Remarks:all the polyester resins could be customizes to Non-tin (A) ,anti gas burners(G),tribo gun(T) and anti-blooming(F)
