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| Color: | Curry | RAL: | R1027 |
|---|---|---|---|
| Gloss: | 73% | Appearance: | Cracky |
| Impact: | 50kg | Salt Resistant: | 1000Hours |
RAL1027 curry electrostatic thermoset powder coating for Construction Equipment
Electrostatic Fluidized Bed Coating: Electrostatic fluidized bed application uses the same fluidizing technique and the conventional fluidized bed dip process but with much less powder depth in the bed. An electrostatic charging media is placed inside the bed so that the powder material becomes charged as the fluidizing air lifts it up. Charged particles of powder move upward and form a cloud of charged powder above the fluid bed. When a grounded part is passed through the charged cloud the particles will be attracted to its surface. The parts are not preheated as they are for the conventional fluidized bed dip process.
Electrostatic magnetic Brush (EMB) Coating: an innovative coating method for flat materials that applies powder coating with roller technique, enabling relative high speeds and a very accurate layer thickness between 5 and 100 micrometre. The base for this process is conventional copier technology . Currently in use in some high- tech coating applications and very promising for commercial powder coating on flat substrates ( steel, Aluminium, MDF, paper, board) as well in sheet to sheet and/or roll to roll processes. This process can potentially be integrated in any existing coating line.
Curing
When a thermoset powder is exposed to elevated temperature, it begins to melt, flows out, and then chemically reacts to form a higher molecular weight polymer in a network-like structure. This cure process, called crosslinking, requires a certain degree of temperature for a certain length of time in order to reach full cure and establish the full film properties for which the material was designed. Normally the powders cure at 200°C (390°F) in 10 minutes. The curing schedule could vary according to the manufacturer's specifications.
The application of energy to the product to be cured can be accomplished by convection cure ovens or infrared cure ovens.
Home appliances.
Automotive parts.
Bicycle parts.
Coating of aluminum extrusions.
Window trims.
Wind powers.
Agricultural equipment.
Aerospace areas.
Interior and exterior furniture.
Architecture construction.
Metal fence and rails.
Food service areas.
Goods display, etc.
There are two main categories of powder coatings: Thermosets and thermoplastics. The thermosetting variety incorporates a cross-linker into the formulation. When the powder is baked, it reacts with other chemical groups in the powder polymer and increases the molecular weight and improves the performance properties. The thermoplastic variety does not undergo any additional reactions during the baking process, but rather only flows out into the final coating.
The most common polymers used are polyester, polyester-epoxy (known as hybrid), straight epoxy (Fusion bonded epoxy) and acrylics.
| 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 |
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