25Kg 93/7 Thermosetting Polyester Resin With Excellent Blooming Resistance
NH3362 for low bake powder coatings with excellent blooming resistance and outdoor durability for engineering machinery
◇ Applications:
NH3362 is a saturated carboxyl polyester resin for polyester/TGIC powder coating system, it is designed for low temperature curing powder coatings.
◇ Basic features:
Low curing temperature
Good mechanical properties
Excellent anti-frost
◇Specifications:
| Appearance | pale yellow flake |
| Acid Number (mgKOH/g) | 31～36 |
| Softening Point (℃) | 103～113 |
| Glass Transition Temp. ( ℃) | ～62 |
| Melting Viscosity (ICI, mPa·s/200℃) |
4500±800 |
| Reactivity at 180℃ (s, 7% TGIC) |
70±30 |
| Curing Requirement | 160℃×15-20min |
| Packaging | PE Bags, Net Weight 25kg ± 0.1kg / bag |
◇Extrusion Condition:
Two-screw Extruder
Jacket Temperature: 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
◇Film Properties:
| Gel Time (180℃, sec) | 70~130 |
| Horizontal Flow (180℃, mm) | 19~25 |
| Gloss (60°) | ≥85% |
| Bending (φ1mm) | Pass |
| Adhesive (1mm, grade) | 0 |
| Pencil Hardness | ≥1H |
| Impact (50cm) | Pass |
◇More Codes:
| Code | Ratio | Cure Cycle | AV (mgKOH/g) | Viscosity (mPa.s/200℃) | Tg (℃) | Reactivity (s/180℃) | Properties |
| NH3362 | 93/7 | 160℃*15min | 31~36 | 3700~5300 | ~62 | 40-100 | For low bake powder coatings with excellent blooming resistance and outdoor durability, suitable for engineering machinery. |
| NH3363 | 93/7 | 160℃*10min | 31~36 | 3700~5300 | ~60 | 40-100 | General purpose resin to be cured at 160℃. Good flow, good outdoor durability and mechanical properties. |
| NH3365 | 93/7 | 160℃*15min | 31~36 | 4500~6500 | ~63 | 80-180 | General purpose resin to be cured at 160℃. Very good flow, excellent outdoor durability and mechanical properties. |
| NH3366 | 93/7 | 160℃*15min | 31~36 | 4500~6500 | ~62 | 80-180 | For low bake powder coatings with excellent blooming resistance and outdoor durability, suitable for engineering machinery. |
◇ 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)
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