Qualicoat Polyester Resin In 93/7 TGIC Curing System For General Industrial Powder Coatings
TGIC Polyester Resin NH3387 with Low Costs and Good Leveling for General Industrial Products
NH3387 is a saturated carboxyl polyester resin for applications of polyester/TGIC powder coating system, it is designed for general industrial powder coatings, which is cost-effecive and well-performed.
Different types of saturated polyester resins with different properties can be synthesized by using different polyacids and polyols, which are mainly used in the manufacture of thermosetting powder coatings.
Using TGIC curing system, it has excellent heat resistance, weather resistance, light resistance, corrosion resistance, chemical resistance and mechanical properties, and is mostly used outdoors, such as construction machinery, heavy trucks, containers and other heavy machinery.
◎Recommend Formulation: NH3387—TGIC
| NH3387 | TGIC | Filler ＆ pigment | Leveling agent | Benzoin | 701 |
| 558 | 42 | 383 | 8 | 4 | 5 |
◎Basic Features:
Low Costs
Good Leveling
Good Mechanical Properties
Good Storage Stability
◎Specifications I:
| Appearance | White or Light Yellow Transparent Flakes |
| Color (50% DMF) | max:1 |
| Acid Number (mgKOH/g) | 30～35 |
| Softening Point (℃) | 103～113 |
| Glass Transition Temp. (℃) | ～63 |
| Melting Viscosity (200℃, cone/plate, mPa·s) | 5000～6000 |
| Reactivity at 180℃ (s, 7% TGIC) | 220～280 |
| Curing Requirement | 200℃×10~20min |
| Packaging | PE Bags, Net Weight 25kg±0.1kg / bag |
◎Specifications II:
| 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 | 50～100μm | |
| Degreased Cold-rolled Steel | 0.5mm | |
| Film Properties | Gel Time (180℃, sec) | 320~420 |
| Horizontal Flow (180℃, mm) | 26~29 | |
| Gloss (60°) | ≥88% | |
| 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 |
| NH-3383 | 93/7 | 180℃*12min | 30~35 | 4000～6000 | ~67 | 100-160 | Suitable for fast cure formulation. Excellent outdoor durability. |
| NH-3385 | 93/7 | 200℃*10min | 30~35 | 5500~7500 | ~63 | 70-130 | Suitable for general industrial products, especially sand texture powder coatings. Good mechanical properties. |
| NH-3387 | 93/7 | 200℃*10minn | 30~35 | 4000~6000 | ~63 | 220-280 | Suitable for general industrial products. Good flow and mechanical properties. |
| NH-3395 | 93/7 | 190℃×10min | 30~35 | 4500～5500 | ～67 | 120-180 | Moderate curing speed, good weathering resistance and storage stability. |
◎Remarks: All the polyester resins could be customized to Non-tin (A), anti gas burners (G), tribo gun (T) and anti-blooming (F).
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