Polyester Resin NH3395 TGIC Cure suitable for Heat-transfer Powder Coating
◇ Applications:
NH3395 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system. Suitable for heat transfer powder coatings.
The balance between high leveling, high weather resistance and mechanical properties of powder coating was solved through the design of product molecular structure, the screening of monomers and additives and the study of synthesis kinetics;
In this model, we upgraded the formula to achieve the balance between high leveling, weather resistance and mechanical properties of powder coatings.
◇ Basic features:
Excellent mechanical properties
Good leveling
Good chemical resistance
Good storage stability
◇ Specifications:
Appearance white or light yellow transparent flake
Color (50%DMF): max: 2
Acid number(mgKOH/g): 30～35
Softening point(℃): 102～112
Glass transition temp.(℃): ～65
Melting viscosity(ICI, mPa·s/200℃): 5000±500
Reactivity at 180℃(s, 7% TGIC): 150±30
◇ Recommend Formulation for white powder:NH3395—TGIC
| NH3395 | TGIC | Pigment & filler | 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℃×10min or 190℃×15min
◇ Film Properties:
Gel time(180℃,sec) 150~230
Horizontal flow (180℃), mm: 23~27
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)
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