Kinte Materials Science and Technology Co.,Ltd
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Polyester Resin NH8305 with Excellent Flexbility&Bending&Impact Resistance
◇ Applications:
NH8305 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system.
Through the selection of special monomers and the development of specific processes, the application field of conventional resins is expanded and products with leading technology are synthesized.
◇ Basic features:
Excellent toughness and cold resistance
Excellent impact damping resistance and storage stability
◇ Specifications:
Appearance: white or pale yellow transparent flake
Color (50%DMF): max: 2
Acid number(mgKOH/g): 30～36
Softening point(℃): 103～113
Glass transition temp.(℃): ～60
Melting viscosity(200℃, cone/plate, mPa·s): 5000～8000
Reactivity at 180℃(s, 7% TGIC): 130±40
◇ Recommend Formulation: NH8305—TGIC
| NH8303 | TGIC | Filler ＆ pigment | Leveling agent | Benzion | 701 |
| 200 | 15 | 140 | 2.4 | 1.2 | 1.2 |
◇ 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: 70～90μm
Degreased cold-rolled steel 0.5mm
◇ Curing Requirement: 200℃×10min
◇ Film Properties:
Gel time(180℃,sec): 150~300
Horizontal flow:(180℃), mm: 23~27
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)
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