Product Introduction

Coating is generally more environmentally friendly than liquid coatings. Because no carrier fluid evaporates away, the coating process emits few volatile organic compounds (VOCs).

Production parameter

Product feature and application

Sanding. The MDF substrate is cut into pieces of the required size, and these pieces are sanded on both the top and bottom, as well as the edges and corners, to make all surfaces feel smooth. Sanding dust and foreign particles are removed by air blast or vacuum to prevent surface defects.

Preheating. MDF is a non-conductive substrate and therefore must be preheated to facilitate grounding for electrostatic application of the powder. Preheating controls outgassing by allowing excess water and free formaldehyde to escape while retaining optimum moisture on the surface to ensure uniform surface conductivity. Preheating also brings the board to a temperature at which the deposited powder particles melt and flow out to maximize wetting, which ensures good adhesion to the MDF surface. In general, smooth coatings require higher preheating temperatures than textured coatings.

Powder Application. To get uniform coatings, the line should be conveyorized. The distance between the preheat oven and spray booth also should be optimized to ensure the right surface temperature at the spray gun point. To ensure a uniform finish, automatic guns with manual touch-up points are recommended. The powder coating thickness usually varies from 4 to 6 mils.

Curing. Both preheating and curing are carried out either in a convection oven or an IR oven or a combination of both. A combined IR/convection oven allows more control over the rate of heat up and attainment of surface temperature during the melting stage. IR energy rapidly raises the temperature of both the powder and the board to a level sufficient to melt and cure the powder.

Application:

●HOME FURNITURE

●KITCHEN & BATHROOM

●OFFICE FURNITURE

●CHILDREN & SCHOOLS FURNITURE

Production details

Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat. The powder may be a thermoplastic or a thermoset polymer. It is usually used to create a hard finish that is tougher than conventional paint.

The large cyclone system design is optimized for the highest efficiency in powder reclaim, ensuring contamination free powder coating operation.

Tangential air movement within the trapezoidal design separates powder from the air stream and is proven efficient to 97%. Powder is recovered in the lower cone section of the cyclone. The operator can select whether the peristaltic powder feed pump is used for return of reclaimed powders, or sent to the absolute filter for waste recovery.

Product qualification

Compared with paint, blister, skin and other surface treatment methods, powder coating has a strong adsorption, firmness, scratch resistance hardness, as well as the most environmentally friendly. Powder can be used more than 98%, and the powder itself non-toxic tasteless, efficient and environmentally friendly. 

Guanjie also obtained the patent certificate of infrared furnace technology. 

Delivers, shipping and serving

We deliver the goods to any ports in China, or deliver to the place as required

We can ship within 30 We deliver the goods to any ports in China, or deliver to the place as required, can ship within 30 days

Packing: proper packing suitable for deliver

We have professional overseas engineers to install and debug the machine

FAQ

If you want to custom made any powder coating line, Pls tell us the following specifications:

a)Material of your workpiece.

b)Size of your workpiece.

c)Weight of your workpiece.

d)Output of your workpiece (one day=8hours, one month=30days).

e)Heating power you prefer: electric, gas, diesel, or coal.

f)Map of your factory (length, width and height).

We could make the design according customer’s requirements.

http://www.gjcoatingequipment.com/