NH-7603

16.jpg

NH-7603

NH7603 is a hydroxylated polyester resin for polyester/isocyanate powder coating system.

fwx_clkj.png

Technical Indexes

Basic features:

-Good solvent resistance

-Excellent leveling

 

Specifications:

Appearance

 White or pale yellow transparent flake

 Color(50%DMF)

 max:2

 Hydroxyl Value(mgKOH/g)

90~120

 Softening point(℃)

 101~110

 Glass transition temp(℃)

 ~59

 Melting viscosity(200℃,cone/plate,mPa·s)

 4500±1500

 Reactivity at 180℃(s,B1530)

 160±50

 

Recommend Formulation:

 HH-7603

 B1530

 Filler & pigment

 Leveling agent

 Benzoin

 432

 227

 328

 10

 3

 

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:200℃*15min

 

Film Properties:

 Gloss(60°)

 >=8%

 Pencil hardness

 >=1H

 Gel time(180℃,sec)

 200~400

 Horizontal flow(180℃),mm

 26~30

 Bending(φ 1mm)

 Pass

 Adhesive(1mm,grade)

 1

 Direct Impact(50cm)

 Pass

 

Packaging:PE bags, N.W. 25KG±0.1KG / bag

 

 

CopyRight © China Electric Apparatus Research Institute Co.,Ltd.All rights reserved粤ICP备2023105266号-1

Legal Notices