Super Durable Isocyanate Polyester Resin NH7809 for Polyurethane Powder coating
◇ Applications:
NH7809 is a hydroxylated polyester resin for polyester/isocyanate powder coating system.
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
Good mechanical properties
Good chemical resistance
◇ Specifications:
Appearance White or pale yellow transparent flake
Color (50%DMF): max: 2
Hydroxyl Value(mg KOH/g): 25～35
Softening point(℃): 102～112
Glass transition temp.(℃): ～66
Melting viscosity(200℃, cone/plate, mPa·s): 12000±2000
Reactivity at 180℃(s, 17% B1530): 520±100
◇ Recommend Formulation:
| NH7809 | Hardener | Filler ＆ pigment | Leveling agent | Benzoin |
| 200 | 40 | 125 | 4.5 | 2.5 |
◇ 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
Film thickness: 50～70μm
Degreased cold-rolled steel 0.5mm
◇ Curing Requirement: 200℃×15min
◇ Film Properties:
Gel time(180℃,sec): 600~850
Horizontal flow:(180℃), mm: 27~32
Gloss(60°): ≥85%
Bending(φ1mm): Pass
Adhesive(1mm,grade): 0
Pencil hardness ≥1H
Direct Impact (50cm): pass
◇ Packaging:
PE bags, N.W. 25KG±0.1KG / bag
Remarks:all the polyester resins could be customizes to Non-tin (A) ,anti gas burners(G),tribo gun(T) and anti-blooming(F)
According to industry statistics, in 2014, KINTE polyester resin output ranked third in the national industry, becoming a well-known brand and technical leader in the field of polyester resin for powder coatings in China.
The market share in Guangdong province exceeds 50%, and the sales volume ranks the top two in China, and is exported to Southeast Asia, the Middle East, Russia and other regions and countries.
We will continue to uphold the business philosophy of "quality is the life of the enterprise, adhere to the first-class technology, first-class quality, first-class cost and first-class brand", provide all-round services and solutions for customers at home and abroad, and create a better future.
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