| Product Description | EM epoxy/polyester thermosetting powder coatings consist of a series of epoxy/polyester blended powder coating products, designed for indoor use. EM epoxy/polyester thermosetting powder coatings can be supplied in a wide range of colors, different surface gloss levels, and various surface texture effects to meet customer needs. |
| Powder properties |
Specific gravity: 1.2-1.8 (varies depending on color)
Powder particle size: Suitable for electrostatic powder coating. Storage conditions: Store in a cool, dry environment below 30°C. Storage period: 12 months Curing conditions: 180°C/10 minutes or 180°C/15 minutes (workpiece temperature), according to customer requirements. |
| Coating performance | Mechanical properties were tested using samples that had undergone degreasing and zinc phosphating treatment, with a film thickness controlled at 60-80 micrometers, and cured by baking at 180°C for 10-15 minutes (sample temperature). Chemical properties were tested using samples that had undergone degreasing and zinc phosphating treatment, with a film thickness controlled at 100-120 micrometers, and cured by baking at 180°C for 10-15 minutes (sample temperature). A decrease in product gloss may lead to a decrease in mechanical properties. |
| Mechanical performance testing |
Bending performance: Product gloss: ≤60°, ≤4mm Product gloss>60° 2mm Adhesion: GB9286 Level 1 Cup test: Product gloss ≤60° ≥4mm Pencil hardness: GB/T6739 ≥1H Impact (positive/negative): Positive impact |
| Chemical performance testing | Neutral salt spray resistance test (500 hours): GB/T1771, not exceeding Grade 1 Humidity and heat resistance test (500 hours): GB1740, not exceeding Grade 1 Solvent/Chemical resistance: Under normal temperature conditions, it has a certain resistance to acids, alkalis, and oils. |
| Preprocessing |
Before using EM epoxy/polyester thermosetting powder coatings, the
substrate requires pre-treatment. To achieve optimal film
performance, the following pre-treatment methods are recommended.
The pre-treatment should be carried out according to the
instructions provided by the pre-treatment solution supplier.
Galvanized steel sheet: Zinc phosphating Standard steel plate: zinc phosphating or hot phosphating |
| Application | EM epoxy/polyester thermosetting powder coatings are suitable for application with electrostatic spray guns, and oversprayed powder can be recycled. |
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