In the pre-treatment process, the surfaces to be coated are cleaned using various mechanisms. A blast room is an example of a pre-treatment enclosure. Pre-treatment enclosures are only used by industries and workshops that operate with old surfaces.
Most powder coating workshops are necessitated to have a pre-treatment enclosure by the environmental regulations. The enclosures help sustain the noise, contaminants, and temperatures from escaping to the workshop. Also, they prevent contaminants from the environment from getting into the pre-treatment equipment. A standard pre-treatment enclosure should be able to maintain temperature and pressure. In addition, it should be easy to set up.
Blast enclosures: To get a clean surface to work on, blasting is required. The process produces a lot of noise which can cause noise pollution if not contained. This demand for a blast enclosure to contain the noise produced in the pre-treatment chambers.
Blast enclosures can help the owner save money as recyclable abrasive can be used. The enclosures also reduce the exposure to toxic chemicals used in the pre-treatment process.
Chemical enclosures: Workshops and industries that use chemicals in the pre-treatment process release a lot of chemicals. The chemicals should be contained to minimize environmental impact.
Manual wash enclosures: Manual enclosures are mostly used to clean, degrease, and phosphate parts to be coated. Most of them feature stainless steel doors, vapor abatement fans, and customizable control systems. Manual wash enclosures can operate with both wand-type steam generators and pressure washers. These operators treat the parts in the wash enclosures manually.
When purchasing a manual wash enclosure for the pre-treatment process, consider buying one that can be customized to pre-treat and clean surfaces of all sizes. Also, buy one that has a flexible design that can be modified to meet future needs. Generally, multi-purpose wash enclosures can help the coater to save on floor space and are better than fixed linear wash enclosures.
Manual washers are pocket-friendly, and they give more flexibility than the conventional enclosures. Most wash enclosures come with a capture tank. These are tanks that feature a detachable grating which acts as a walking surface and a drain system.
Consideration When Acquiring a Pre-treatment Enclosure
A premium enclosure should be able to contain the pre-treatment process. It should be big enough to hold the biggest surface and leave some space for the operator to move about efficiently as he/she works. Some enclosures can have more than one operator in the space. Assess the present as well as future requirements when selecting the pre-treatment enclosure.
Here are some of the considerations:
Enclosure design: There are several enclosure designs such as flange-bolt, reinforced flange-bolt, and column bolt.
The most economical design is the flange-bolt. This enclosure is constructed with fabricated panels which are bolted together. They do not have a frame for supporting the structure. This design is appropriate for rooms with a height of up to 12ft and a width of 12ft.
Reinforced flange-bolt has panels that are pre-fabricated with bolts. This design is suitable for rooms that have a width of between 12ft to 30ft and a height of 12ft to 24ft high.
Column bolt has the strongest structure. They have panels which fixed with pre-fabricated bolts. The panels are then attached to structural steel frames. Column bolt enclosure design is suitable for rooms that are 20ft high or wider than 30ft.
Lighting: Go for the enclosure system with well-positioned and bright lights. Some of the enclosures have lights fixed on the ceiling or the walls, while others have lights mounted on both the walls and the ceiling.
Doors: The doors should be large enough to allow the movement of surfaces in and out of the enclosure.
Make an informed decision before purchasing a pre-treatment enclosure.