HH-2581 is a carboxyl polyester resin designed for 50/50 hybrid powder coating to be cured at 180℃.
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Basic features:
-Good mechanical properties
-Excellent leveling
-Good storage stability
Specifications:
|
Appearance |
white or light yellow transparent flakes |
|
Color(50%DMF) |
max:3 |
|
Acid number(mgKOH/g) |
69~75 |
|
Softening point(℃) |
93~103 |
|
Glass transition temp(℃) |
~55 |
|
Melting viscosity(ICI,mPa·s/200℃) |
2000~3500 |
|
Reactivity at 180℃(s,50%Epoxy) |
100~200 |
Recommend Formulation:
|
HH-2581 |
E12 |
Filler&Pigment |
Leveling agent |
Benzoin |
701 |
|
300 |
300 |
383 |
8 |
4 |
5 |
Extrusion Condition:Two-screw extruder
|
Zone Ⅰ |
90~110℃ |
ZoneⅡ |
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:180℃*10min
Film Properties:
|
Gel time(180℃,sec) |
100~200 |
|
Horizontal flow(180℃,mm) |
27~30 |
|
Gloss(60°) |
>=90% |
|
Bending(φ1mm) |
pass |
|
Adhesive(1mm,grade) |
0 |
|
Pencil hardness |
>=1H |
|
Impact(direct reserve) |
pass 50kg·cm |
Packaging:PE bags, N.W. 25KG±0.1KG / bag