ISO14000 95:5 Powder Epoxy Polyester Resin For Powder Coating Flexible

Pinhole Free Polyester Resin NH6583 for House-appliance and Aluminum Profile Powder Coating

◇ Applications:

NH-6583 is a saturated carboxyl polyester resin designed for 95:5 Primid XL 552 powder coating to be cured at 180℃. It can be used to produce various powder coatings of house-appliance and aluminum profile. The coating is prepared by mixing resin, pigment and filler, curing agent and other additives in a certain proportion, and then by hot extrusion, crushing and screening. They are stored stably at room temperature. After electrostatic spraying or fluidized bed dip coating, they are heated, baked, melted and solidified to form a flat and bright permanent film, so as to achieve the purpose of decoration and anti-corrosion.

◇ Basic features:

Excellent leveling

Fantastic adhesion when applied to electrostatic spraying production line

Outstanding mechanical properties

Good anti-yellowing

Pinhole free in thick films

Good weathering resistance

◇ Specifications:

Appearance: white or light yellow transparent flakes

Color(50%DMF): max:2

Acid number(mgKOH/g): 29～35

Softening point(℃) 96～106

Glass transition temp.( ℃) ～56

Melting viscosity(200℃, cone/plate, mPa·s): 3000±500

Reactivity at 180℃(s, 5% XL552): 245±45

◇ Recommend Formulation:NH-6583/HAA

◇ 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: 50～70μm

Degreased cold-rolled steel 0.5mm

◇ Curing Requirement: 180℃×10min.

◇ Film Properties:

Gel time(180℃,sec): 160~300

Horizontal flow:(180℃),mm: 25~29

Gloss(60°): ≥88%

Bending(φ1mm): pass

Adhesive(1mm,grade): 0

Pencil hardness: ≥1H

Impact (50cm): pass

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

Remarks:all the polyester resins could be customized to Non-tin (A) ,anti gas burners(G),tribo gun(T) and anti-blooming(F)