Kinte Materials Science and Technology Co.,Ltd
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93/7 High Gloss Weather Durable Polyester Resin NH3307 for TGIC Cure Powder Coating
Applications
NH3307 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system at the ratio 93/7.
Excellent flowability and durability, suitable for aluminum profile powder coatings.
Basic features:
Excellent leveling
Excellent anti-yellowing
Good chemical resistance and mechanical properties
High storage stability;
High weathering resistance
Suitable to make high gloss powder coatings for aluminum profile.
Specifications:
Appearance white or light yellow transparent flakes
Color (50%DMF): max: 1
Acid number(mgKOH/g): 30～35
Softening point(℃): 103～113
Glass transition temp.(℃): ～67
Melting viscosity(200℃, cone/plate, mPa·s): 5000±1000
Reactivity at 180℃(s, 7% TGIC): 230±30
Recommend Formulation:
NH3307—TGIC
| NH3307 | 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
Film thickness: 50～100μm
Degreased cold-rolled steel 0.5mm
Curing Requirement: 200℃×10~15min
Film Properties:
Gel time(180℃,sec) 290~390
Horizontal flow(180℃,mm): 25~28
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
Kinte has domestic first-class polymer material R & D and testing equipment. As an industry central enterprise integrating the advantages of powder, liquid coating and resin industry chain in China, Optimus materials shoulders the important task of national technological innovation, energy conservation and emission reduction and environmental friendliness. It has successively undertaken more than 40 scientific and technological projects of the Ministry of science and technology, the Commission of industry and information technology and provincial and urban areas, won more than 30 national provincial and urban science and technology awards, and now has more than 50 authorized invention patents.
