Kinte Materials Science and Technology Co.,Ltd
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Fast Curing Polyester Resin NH3383 for Powder Coating Manufacture with Good Weatherability
Weather resistant polyester powder coating has been widely used in outdoor facilities with weather resistance requirements, such as building aluminum profile, automobile, motorcycle and bicycle parts, courtyard metal furniture, highway guardrail, outdoor advertising and lighting, ceiling, etc.
◇ Applications:
NH3383 is a saturated carboxyl polyester resin for applications of polyester/TGIC powder coating system.
◇ Basic features:
Good leveling
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)
