How to make good use of your
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Electrostatically charged powder will adhere to a grounded metal auto part. The part is then heated to 350° - 400°F and the powder melts and "flows out" forming a durable finish upon cooling. Pressure blasting is the solution when auto parts are too big to fit into a cabinet and need to be abrasive blasted.
Let's look at the process :
Start with a bare metal part able to withstand 400°F. Remove any heat sensitive components such as gaskets, rubber bushings, etc. The part preparation is similar to that of conventional coatings. First remove all coatings, rust, dirt and grease from part. Abrasive & blasting and/or chemical stripping is commonly used. Degrease thoroughly until dry. Mask the part where needed using specialty high temperature plugs, masking tape or aluminum foil.
Now let's look at the components of the powder coating kit. The combination of a HotCoat Powder Coating Gun and a Spray Booth makes applying powder extremely fast. Coat the part in minutes, and recycle the unused powder.
¤ Just fill the gun cup 1/3 full - plug into electric and air service, ground part, turn the spray booth on, and start spraying. You'll
be finished in minutes !
¤ Typically only one coat is necessary.
¤ A good coating gun applies most types of powders consistently, and quicker with average film builds of 2-3 mils.
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The use of a powder coating kit brings the following advantages over liquid coating :
¤ Minimal operator training required for professional results.
¤ No runs, drips or sags - problems usually found with liquid coatings
¤ Environmentally Friendly - no solvents or hazardous material disposal problems.
¤ Easy clean up - overspray can be swept up, application gun is cleaned using compressed air.
¤ Minimal safety issues.
A basic powder coating kit can also be expanded in the future. There are expandable Walk-In Ovens available on the market, offering the opportunity to grow your powder coating operation. They require simple bolting on the additional module and can double the capacity in no time !
A few more comments on the use of a powder coating kit :
¤ Most parts cure in as quickly as 15-20 minutes at 300°-400°F.
¤ Parts are ready to be placed in service as soon as they have been cooled.
¤ There are minimal VOC emissions during the cure process.
To give you an idea of time, powder coating an auto part the size of a child's bicycle will require approximately 3.5 hours.
... and no need to go to a body shop !
