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powder coating spray booth
powder coating spray booth

This popular size for small shops measures 1900mm in height by 1000mm in width by1 600mm in depth

This popular size for small shops measures 1900mm in height by 1600mm in width by1 000mm in depth. Our Powder Booths make efficient use of shop space and are designed for manual “batch” or automated/process powder coating with or without overspray reclamation. Shop air is drawn into the powder coating spray booth, and then passes through the powder booth’s workspace into a filtered plenum integrated into the wall(s). The air is filtered in multiple stages and then discharged to the outside atmosphere or routed back into the room. Disposable filters are easy to inspect and replace.

. FUNCTIONS

   1. manual booths are the right solution for every application: for new start up and experienced users alike, or as a one-off solution for small or medium series.

   2. A space-saving design,integrated functions and ease of operation provide ideal conditions for efficient and high quality manual coating.

3. by maintaining the airflow at design levels. During operation overspray powder accumulates on the cartridge filters. As the cartridge filters load, airflow decreases and negative pressure rises within the air handler. A timer activates a system of air purging valves that clear the cartridge filters of accumulated powder to ensure maximum life.

The powder coating process

The powder coating process involves three basic steps:

Part preparation or the pre-treatmentThe powder applicationCuring

Part preparation processes and equipmentRemoval of oil, soil, lubrication greases, metal oxides, welding scales etc. is essential prior to the powder coating process. It can be done by a variety of chemical and mechanical methods. The selection of the method depends on the size and the material of the part to be powder coated, the type of soil to be removed and the performance requirement of the finished product.

Chemical pre-treatments involve the use of phosphates or chromates in submersion or spray application. These often occur in multiple stages and consist of degreasing, etching, de-smutting, various rinses and the final phosphating or chromating of the substrate. The pre-treatment process both cleans and improves bonding of the powder to the metal. Recent additional processes have been developed that avoid the use of chromates, as these can be toxic to the environment. Titanium zirconium and silanes offer similar performance against corrosion and adhesion of the powder.

Another method of preparing the surface prior to coating is known as abrasive blasting or sandblasting and shot blasting. Blast media and blasting abrasives are used to provide surface texturing and preparation, etching, finishing, and degreasing for products made of wood, plastic, or glass. The most important properties to consider are chemical composition and density; particle shape and size; and impact resistance.

Silicon carbide grit blast medium is brittle, sharp, and suitable for grinding metals and low-tensile strength, non-metallic materials. Plastic media blast equipment uses plastic abrasives that are sensitive to substrates such as aluminum, but still suitable for de-coating and surface finishing. Sand blast medium uses high-purity crystals that have low-metal content. Glass bead blast medium contains glass beads of various sizes.

Cast steel shot or steel grit is used to clean and prepare the surface before coating. Shot blasting recycles the media and is environmentally friendly. This method of preparation is highly efficient on steel parts such as I-beams, angles, pipes, tubes and large fabricated pieces.

Different powder coating applications can require alternative methods of preparation such as abrasive blasting prior to coating. The online consumer market typically offers media blasting services coupled with their coating services at additional costs.

powder coating spray booth

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