
RAL1018 zinc yellow electrostatic thermoset powder coating for home Appliances
The powder coating process is very similar to a painting process except that the “paint” is a dry powder rather than a liquid. The powder sticks to the parts due to electrostatic charging of the powder and grounding of the parts. Any substrate can be used that can tolerate the heat of curing the powder and that can be electrically grounded to enhance charged particle attachment. The powder flows and cures during the application of heat.
Several advantages of powder coating over paints are:
Powder recovery for reuse
No VOC generation therefore no VOC destruction required
Can be more durable than paints (powder chemistry dependent)
Several disadvantages of powder coating over paints are:
Can have less leveling than paint (more orange peel)
Curing is typically more energy intensive than paint drying due to
higher temperature requirements
Surface preparation before powder coat application is still
critical for adhesion and defect avoidance.
Typical steps in a powder coating process for metal parts:
Phosphating Powder
Coating
Cleaning Rinsing Part
Drying
Rinsing Curing
1. Cleaning (typically an alkaline cleaner, but substrate
dependent)
2. Rinsing
3. Phosphating (optional step to improve corrosion protection and
adhesion)
4. Drying
5. Powder Coating
6. Curing (typically energy intensive since relatively high
temperatures are required to get the powder to liquefy and flow*)
*Powder coating formulators have been working to reduce the cure
temperatures to allow the process to be used on temperature
sensitive materials.
Thermoset Pros
Testing Items | Standard | Data |
Appearance | Flat And Smooth | |
Coating Thickness | GB/T6554-2003 | 50~70mm |
Gloss(60°) | GB/T9754-2007 | From 2%~100% to All Gloss |
Impact Resistance | GB/T1732-1993 | 50kg.cm |
Bending Performance | GB/T6742-2007 | 2mm |
Cupping | GB/T9753-2007 | 8mm |
Adhesion Force | GB/T9286-1998 | 0 Grade |
Hardness | GB/T6739-2006 | 2H |
Resistant to Salt (1000 Hours) | GB/T1771-2007 | No Change For Coating Appearance |
Humidity And Heat Resistance (1000 Hours) | GB/T1740-2007 | No Change For Coating Appearance |
Chemical Medium Resistance (240 Hours) 5%H2SO4 5%HCl 5%NaOH 5%NaCl | GB/T1763-1979 | No Change For Coating Appearance No Change For Coating Appearance No Change For Coating Appearance No Change For Coating Appearance |
Heat Resistance | GB/T1735-2009 | It Can Reach Between 220℃/20minutes And 240℃/40minutes According To Color And Different Requirement |
Jinhu Color Powder Coating Co.Ltd
Jinhu Color Powder Coating Co.,Ltd with brand FEIHONG founded in 1993,is a rapid growing enterprise who integrate the production and marketing of thermoset powder coating.After 28 years' effort and development,now we have become one of the leading powder coating,powder paint manufactures and suppliers in China.
We are always keeping kind relationship with our distributors and end users around the world,and enjoy high reputation in powder coating industry domestically and internationally.
Feihong factory focus on formulating kinds of electrostatic powder coatings,which include epoxy,epoxy polyester (Hybrid),pure polyester,polyurethane powder coating for indoor,outdoor application.With advanced production lines and professional technology,besides the regular powder paints,we do very well in bonding powder paint,metallic powder paint and textured powder paint,which are widely used in metal surface coating for decorative and protective purpose.The products are successfully exported to more than 48 countries.
But Feihong have never stop going forward,in order to control the cost and supply competitive price,better in-time service for our European customers,in 2017 we built another factory in Europe,which is for producing powder coating and exibiting the color sample panels to customers nearby.
For meeting customers' specific color requirements,color matching and tailor-made service are provided before placing bulk order.
We take "Quality, Service, Innovation, Efficiency" as a market philosophy, and introduce the first-class equipment, advanced testing device to ensure output prenium products, and serve all customers with best and instant service .
Continuous quality improvement in products is FEIHONG's only goal to meet and exceed customer expectations.