Kinte Materials Science and Technology Co.,Ltd
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Super Durable and Environmental Friendly Polyester Resin in HAA Cure NH6503
◇ Applications:
NH-6503 is a saturated carboxyl polyester resin for Polyester/Primid powder coatings with super durable weatheribility.
◇ Basic features:
High gloss
Super weathering resistance(Qualicoat level 2)
Excellent chemical resistance,better than TGIC,
Excellent leveling compared with other HAA polyester resin
Good anti-yellowing
◇ Specifications:
Appearance White or pale yellow transparent flakes
Color(50%DMF): max:2
Acid number(mgKOH/g): 30～35
Softening point(℃) 95～110
Glass transition temp.( ℃) ～57
Melting viscosity(200℃, cone/plate, mPa·s): 3500±500
Reactivity at 180℃(s, 5% T-105): 250±50
◇ Recommend Formulation:NH-6503/HAA
| NH-6503 | Primid XL-552 | Filler ＆ pigment | Leveling agent | Benzoin | 701 | 703 |
| 566 | 34 | 380 | 8 | 4 | 4 | 4 |
◇ 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: 50～70μm
Degreased cold-rolled steel 0.5mm
◇ Curing Requirement: 200℃×10min.
◇ Film Properties:
Gel time(180℃, sec) 160~250
Horizontal flow:(180℃),mm: 26~28
Gloss(60°): ≥88%
Bending(φ1mm): pass
Adhesive(1mm,grade): 0
Pencil hardness: ≥1H
Direct 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)
