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Maintain a clean & dust free atmosphere
and work area. Ensure that the gun and booth are clean before commencing
work.
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Inspect work area and eliminate
possibilities of accumulated dirt on roofing structures and other equipment
from blowing of falling on the work piece.
-
Do not mix powders from two different
suppliers/manufacturers.
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Careful attention should be given to having
clean, dry, oil free compressed air supply, at the recommended pressure.
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Periodically drain off water from the
compressor tank and flush the airline dry.
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Clean sieved reclaimed powder
should be mixed in small proportionate quantities, as the work progresses,
and not allowed to accumulate and collect dirt and moisture.
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Always stores powder in a closed sealed
container and in a cool and dry place. The powder should not be left in the
equipment for long periods when not being used
-
Good earthing of job and equipment is
essential.
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Check that the pre-treatment chemicals are
in good condition and of the correct strength. Remove the sludge accumulate
at the bottom of the tanks.
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Give due attention to surface pre-treatment
of work piece. Ensure that the job is duly cleaned of surface contaminants,
blow holes and cavities are filled and finished, de-greased, de-rusted,
passivated, phosphated/chromated and duly passivated and dried. In the case
of castings, greater care is required to clean the blow holes/porous
surface. After pre-treatment ensure that dirt and dust does not settle on
the job, and it is coated and cured at the earliest.
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Metallic powders should be used with the
charging voltage set to minimum. Recycled/recovered powder should be used
with caution and care.
