Kinte Materials Science and Technology Co.,Ltd
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Super Durable Isocyanate Polyester Resin NH7806 with Good Flowability
◇ Applications:
NH7806 is a saturated hydroxyl-terminated polyester resin designed for polyester / isocyanate powder coating to be cured at 200℃.
Advantages of powder coatings
1. Health and environmental protection
2. Convenient transportation and storage
3. No preservative is required
4. Paint smell
◇ Basic features:
Excellent flowability
Good mechanical properties
Good resistance to chemicals
Used for polyurethane powder coating
◇ Specifications:
Appearance pale yellow flake
Color(50%DMF): max:2
Acid number(mgKOH/g): max:8
Hydroxyl value(mgKOH/g): 25～35
Softening point(℃): 103～113
Glass transition temp.( ℃): ～64
Melting viscosity(200℃, cone/plate, mPa·s): 7500±1500
Reactivity at 180℃(s, 13%B1530): 240～400
◇ Recommend Formulation:NH-7806
| NH-7806 | B1530 | Filler ＆ pigment | Leveling agent | Benzion |
| 200 | 30 | 125 | 4.5 | 2.5 |
◇ 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: 200℃×20min.
◇ Film Properties:
Gel time(180℃,sec) 600~900
Flow(180℃,mm) 28~33
Gloss(60°): ≥85%
Bending(φ1mm): pass
Adhesive(1mm,grade): 0
Pencil hardness: 1H
Impact(50cm): pass
Storage test(40℃,24hr): good
Remarks:all the polyester resins could be customizes to Non-tin (A) ,anti gas burners(G),tribo gun(T) and anti-blooming(F)
