NH-6083/NH-6685

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NH-6083/NH-6685

NH-6083/NH-6685 are saturated carboxyl polyester resins for low gloss polyester/primid powder coatings by one shot estrusion.

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Technical Indexes

Basic features:

-Low gloss film

-Excellent mechanical properties

-Good leveling

-Good weathering resistance

 

Specifications:

 

 NH-6083

 NH-6685

 Appearance

 pale yellow flake

 pale yellow flake

 Color(50%DMF)

 <=3

 <=3

 Acid number(mgKOH/g)

 80~90

 19~24

 Softening point(℃)

 98~118

100~110 

 Glass transition temp(℃)

 ~58

 ~58

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

 3300±800

 5600±800

 Reactivity at 180℃(s,XL-552)

 60±30

 250±50

 

Recommend Formulation:

 NH-6083

 NH-6685

 XL-552

 Filler&Pigment

 Leveling agent

 Benzoin

 270

 270

 43

 406

 8

 3

 

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

 50~80μm

 Degreased cold-rolled steel

 0.5mm

 

Curing Requirement:180℃*10min

 

Film Properties:

 Gloss(60°)

 8%~14%

 Bending(φ2mm)

 pass

 Adhesive(1mm,grade)

 0

 Pencil hardness

 >=1H

 Direct Impact Resistance

 pass 50kg·cm

 

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

 

 

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