Economic 93/7 TGIC Polyester Resin with Excellent Anti-interference Performance
NH0308 is a saturated polyester resin, which is used in polyester / TGIC powder coating system and polyester / HAA powder coating system.
Shrinkage is a common problem in the use of powder coatings. They will not only affect the appearance of the product, but also seriously affect the mechanical and protective properties of the product.
Due to the existence of low surface tension droplets in the coating itself or the existence of low surface tension areas on the coated surface due to pollution, the surface tension is uneven. Under the effect of the difference in surface tension, the coating flows from the low surface tension to the high surface tension, resulting in a central hollow hole - shrinkage cavity. We attribute the uneven surface tension to the internal cause of shrinkage cavity formation. In fact, some properties of the coating itself, such as coating viscosity, thixotropy, coating drying speed and film thickness, can increase or decrease the flow ability of the coating fluid, thus increasing or decreasing the degree of shrinkage. We attribute these factors to the external causes of shrinkage. The internal cause is the necessary condition of shrinkage cavity, and the external cause can appropriately control or intensify the degree of shrinkage cavity.
The main raw material of the powder coating is polyester resin. The polyester resin with strong anti-interference property is selected, which can enhance the anti-interference and wettability of the powder to a certain extent, and eliminate pitting and shrinkage.
Basic Features
High cost performance
Excellent storage stability
Outstanding leveling performance
Excellent anti-interference performance
Recommend Formulation:
NH0308/TGIC
| NH0308 |
TGIC |
Filler & pigment |
Leveling agent |
Benzoin |
701 |
703 |
| 300 |
22.6 |
190 |
4 |
2 |
2.5 |
/ |
NH0308/HAA
| NH0308 |
T-105 |
Filler & pigment |
Leveling agent |
Benzoin |
701 |
703 |
| 300 |
15.8 |
190 |
4 |
2 |
2 |
2 |
Specifications:
| Appearance |
white or pale yellow transparent flakes |
| Acid Value (mgKOH/g) |
30~36 |
| Softening Point (ºC) |
105~115 |
| Glass Transition Temp. (ºC) |
~63 |
| Melting Viscosity (200ºC, ICI, mPa·s) |
3200±1000 |
| Reactivity at 180ºC (s, 7% TGIC) |
300±100 |
| Reactivity at 180ºC (s, 5% T-105) |
200±100 |
| Curing Requirement |
200ºC×10min (TGIC)
180ºC×10min (HAA) |
| Packaging |
PE Bags, Net Weight 25kg ± 0.1kg / bag |
Specifications II:
| Extrusion Condition |
Two-screw Extruder |
| Jacket temperature |
100~110ºC |
| Speed of Revolution |
500~1200rpm |
| Fineness of Powder |
<100μm |
| Application Condition |
Electrostatic Spraying With |
40~70KV |
| Coating Film Thickness |
60~80μm |
| Degreased Cold-rolled Steel |
0.5mm |
| Film Properties |
Gel Time (180ºC, TGIC, sec) |
300~450 |
| Gel Time (180ºC, T-105, sec) |
150~300 |
| Horizontal Flow (180ºC, mm) |
25~30 |
| Gloss (60°) |
≥80% |
| Adhesive (1mm, grade) |
0 |
| Pencil Hardness |
≥1H |
| Impact (50cm) |
Pass |
More Codes:
| Code |
Ratio |
Cure Cycle |
AV
(mgKOH/g) |
Viscosity
(mPa.s/200ºC) |
Tg
(ºC) |
Reactivity (s/180ºC) |
Properties |
| PC3303 |
93/7 |
250ºC*1.5min |
30~37 |
3500~6500 |
~60 |
50-150 |
Suitable for coil applications, high flexibility and excellent mechanical properties. |
| NH4306 |
93/7 |
200ºC*10min |
29~35 |
4500~6500 |
~66 |
200-360 |
Good weather resistance and excellent overall performance. |
| NH0305 |
93/7 |
200ºC*10min |
30~36 |
2800~4800 |
~63 |
100-300 |
High cost-performance and excellent storage stability. Suitable for sand and wrinkle powder coatings. With weak weather resist, only recommend to produce indoor use powder
|
| NH0307 |
93/7 |
200ºC*10min |
30~36 |
2600~4600 |
~63 |
140-340 |
High cost performance, good storage stability and excellent matting performance. |
| NH0308 |
93/7 |
200ºC*10min |
30~36 |
2200~4200 |
~63 |
100-300 |
High cost performance, excellent storage stability, outstanding leveling performance and excellent anti-interference performance. |
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 Certificates. Due to the excellent and stable quality, our products always enjoy a high reputation at home and overseas, and were sold to more than 30 countries.
The polyester resin branch was founded in 2000, now there are two factories (DongGuan factory and TaiXing Factory) with an annual production capacity of 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 to 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 a brilliant future with you together.
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