Economic 93/7 Saturated TGIC Polyester Resin for Sand Texture Powder Coatings
◎Introduction
NH3385 is a saturated carboxyl polyester resin for applications of polyester/TGIC powder coating system. Suitable for sand texture powder coatings.
As an environmentally friendly coating, powder coating has the advantages of no solvent, low pollution, simple coating process and high coating efficiency. The currently commonly used powder coatings have a flat surface after curing, are rigid, have poor hand feel, and lack three-dimensional sense. With the rapid development of the powder coating industry, people are no longer satisfied with the monotonous gloss or color-changing decoration for various household appliances and equipment to be coated. Pattern, to give the painted device a beautiful and colorful appearance, or to cover up the defects on the surface of the coated object by its texture effect, to improve the decoration of the coating film, and to obtain the decorative effect that is difficult to achieve by ordinary decorative powder coatings. Therefore, it has been greatly developed in recent years. Among them, the sand texture type powder coating has been continuously favored by people for its excellent appearance, outstanding concave and convex touch, excellent physical and mechanical properties, and good covering effect.
◎Basic Features
Low Costs
Good Sand Texture Effect
Good Mechanical Properties
Good Storage Stability
◎Recommend Formulation:
| NH3385 | TGIC | BaSO4 | Sand Texture Additive | Bentonite | Carbon Black |
| 558 | 42 | 389 | 2 | 3 | 6 |
◎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 (ICI, mPa·s/200℃) | 5500～7500 |
| Reactivity at 180℃ (s, 7% TGIC) | 70～130 |
| Curing Requirement | 200℃×10~20min |
| 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: 50～100μm
Degreased cold-rolled steel: 0.5mm
◇Film Properties:
| Gel Time (180℃, sec) | 100~200 |
| Horizontal Flow (180℃, mm) | 14~17 |
Gloss (60°) | ~10% |
| Bending (φ1mm) | Pass |
| Adhesive (1mm, grade) | 0 |
| Pencil Hardness | ≥1H |
| Impact (50cm) | Pass |
◎More Code
| Code | Ratio | Cure Cycle | AV (mgKOH/g) | Viscosity (mPa.s/200℃) | Tg (℃) | Reactivity (s/180℃) | Properties |
| NH3383 | 93/7 | 180℃*12min | 30~35 | 4000～6000 | ~67 | 100-160 | Suitable for fast cure formulation. Excellent outdoor durability. |
| NH3385 | 93/7 | 200℃*10min | 30~35 | 5500~7500 | ~63 | 70-130 | Suitable for general industrial products, especially sand texture powder coatings. Good mechanical properties. |
| NH3387 | 93/7 | 200℃*10minn | 30~35 | 4000~6000 | ~63 | 220-280 | Suitable for general industrial products. Good flow and mechanical properties. |
| NH3395 | 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).
◎Company Profile:
Kinte Materials Science and Technology Co., Ltd. is subordinate to China Machinery Industry Corporation (a key state-owned enterprise directly managed by SASAC, ranking 284 among the world's top 500 in 2021). It is a national high-tech enterprise under China National Electric Apparatus Research Institute Co., Ltd. (Stock Code: 688128), a listed enterprise on the SSE STAR MARKET. Focusing on the R & D, production, and sales of environmentally friendly coatings (powder coatings, waterborne industrial coatings) and powder coating resins, the company is committed to improving the global market competitiveness of China's environmentally friendly coating industry. Now it has become the leader and promoter in China’s technological development of environmentally friendly coatings as well as polyester resins for powder coatings!
We have gained ISO9001 and ISO14000, ISO18001, RoHS, UL certification and QUALICOAT Certificate. Due to the excellent and stable quality, our products always enjoy high reputation at home and oversea, and were sold to more than 30 countries.
Polyester resin branch was founded in 2000, now there are two factories (DongGuan factory and TaiXing Factory) with annual production capacity over 80,000 tons, and the annual production capacity reached 120000 tons by the end of 2020, opening the road to global diversified development. Our clients include many top-tier powder manufacturers in the world such as AKZO, PPG, TIGER, PROTECH, NIPPON, OXYPLAST, JOTUN, SHERWIN, VALSPAR, SINTERPLAST, etc.
We unremittingly stick at the business principle of “Quality is the life, adhere to first-class technology, first-class quality, first-class cost and first-class brand”. We would like to provide a complete set of services and solutions for both domestic and abroad customers and would like to go forward to brilliant future with you together.
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