Product Description:
The JX polyethylene powder coatings are made from polyethylene resins, functional additives, compatibilizers, fillers, and pigments. These coatings have excellent adhesion, chemical stability, corrosion resistance, electrical insulation, and low temperature resistance. The outdoor weather resistance can be customized to meet customer requirements. Compared to regular polyethylene powders, one of its main features is that it can be sprayed as a thin coating in both cold and hot conditions. It can also be applied using a fluidized bed.
Application Area:
These coatings are suitable for spraying on various chemical equipment, metal parts, and industrial pipelines.
Properties of the Powder Coatings:
Non-volatile content: ≥99.5%
Particle size distribution: ≤200um
Specific gravity: 0.91-0.95 (varies depending on the color)
Melt index: 5-50 g/10min (2.16kg, 190℃), depending on the workpiece and process.
Storage:
Store in cool, dry areas below 35℃ for first come, first served use.
Packaging:
The coatings are packaged in composite paper bags or cartons, with a net weight of 20 kg per bag.
Performance of Coatings:
A test sheet was prepared using a sample panel.
A 2mm thick steel plate was cleaned of grease and rust, and a coating with a thickness of 400μm was applied.
Color GB/T9761 | No visible difference (compared with the standard plate) |
Appearance (visual inspection) | Level and smooth (slight orange peel is permissible) |
Film thickness µm GB/T 13452.2 | 150~400 |
Gloss % GB/T 9754, 60° | 10~75 (it is adjusted according to customer requirements) |
Bending (with the film thickness of 200μm) GB/T 6742 | ≤2mm |
Shore hardness (D) GB/T 2411 | 45~55 |
Low temperature resistance Q/HJ 008-2008 | No cracking at -35℃ for 60h |
Adhesion (refer to 5.5.2.3.2 in JT/T 600.1) | Level 0 |
Impact test (9N·m) 6.3.5 in GB/T18226 | No peeling or fracture occurs in the coating |
Salt spray | No crossing for 500h GB/T 18226 | No blistering, peeling and rusting |
Crossing for 8h GB/T 18226 | No blistering, peeling and rusting |
Damp and heat resistance for 8h GB/T 1740 | No blistering, peeling and rusting |
Accelerated weathering test, 1,000h GB/T 1865 | Loss of gloss and discoloration: Level 1; chalking and cracking: Level 0 |
Natural exposure for one year GB/T9276 | Loss of gloss and discoloration: Level 1; chalking and cracking: Level 0 |
Soaked in 5%HCl for 400h | No change in coating appearance |
Soaked in 5%NaOH for 72h | No change in coating appearance |
Hygiene & Safety:
The powder coatings are safe to use and do not contain toxins. However, it is important to avoid inhaling the dust. Operators should wear appropriate dust masks and goggles.
Caution:
For optimal adhesion, it is recommended to phosphorize or color the substrate after degreasing and rust removal.
Excessive heat can cause the coated film to age and change color. On the other hand, low temperatures can result in a thin and rough film with defects. Therefore, the ideal heating temperature should be determined through testing based on the metal thickness and coating facilities used by the customer.
When designing the workpiece, sharp parts should be grounded and there should be no gaps in welding. The metal thickness and wire diameter in the workpiece should be closely matched.
This product is not suitable for post-processing of deformed pieces that have already been coated. Like all polymer powders, especially when in motion, the powder coating can ignite or burn if exposed to high temperatures.
