NH-6353 is a saturated carboxyl polyester resin for Polyester/Primid powder coating system.
Basic features:
-Suitable for low temperature curing
-Good mechanical properties
-Good weathering resistance
Specifications:
Appearance |
white or light yellow transparent flakes |
Color(50%DMF) |
max:3 |
Acid number(mgKOH/g) |
49~55 |
Softening point(℃) |
101~111 |
Glass transition temp(℃) |
~55 |
Melting viscosity(200℃,cone/plate,mPa·s) |
4500±1000 |
Reactivity at 180℃(s,7%T-105) |
130±30 |
Recommend Formulation:
NH-6353 |
T-105 |
Filler&Pigment |
Leveling agent |
Benzoin |
701 |
703 |
558 |
42 |
380 |
8 |
4 |
4 |
4 |
Extrusion Condition:Two-screw estruder
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 |
50~100μm |
Degreased cold-rolled steel |
0.5mm |
Curing Requirement:150℃*15min
Film Properties:
Gel time(180℃,sec) |
90~150 |
Horizontal flow(180℃,mm) |
22~25 |
Gloss(60°) |
8%~14% |
Bending(φ2mm) |
pass |
Adhesive(1mm,grade) |
0 |
Pencil hardness |
>=1H |
Impact(50cm) |
pass |
Packaging:PE bags, N.W. 25KG±0.1KG / bag