The Powder Coating
Process:
1)
All products or parts that arrive at our facilities regardless
of size or quantity, will be inventoried by our customer service
rep and our customer. In the case of "mail orders"
letters describing detail and color will need to accompany the
products).
All job's receive a "job order work tag sheet". This work
sheet will follow our customer's job from start to finish. The
sheet will track part count, blast time, outgassing of parts, degreasing
time, wash & racking time, powder coating, baking, packaging
& shipping, and misc time. This sheet also tracks color
choice, arrival time and approximant shipment date.
Why do we do all this? Because this helps us to keep track of
all aspects of your parts, we want our customers to get back
everything they sent us!
This also helps us to bill our customer the correct and fair
amount.
2)
Whatever your interest or need may be, from restoration, marine,
industrial, to show, the key to an excellent
finish, is proper surface preparation of your part.
Your parts may only require a chemical surface prep, or a pass
through our chemical wash tank.
They may need to be "out gassed" to remove impurities
trapped deep in the part. This is a "must" for many
used parts and castings.
Your parts also may require more intense cleaning of the
surface, this is done by "media blasting" your parts,
using aluminum oxide or glass bead, then followed by a
"chemical pretreatment" and "bake dry
process" @ 275 degrees F for 15 min's.
The process needs, are based on the parts application and the
parts surface material.
All this surface prep is a "must" in providing an
excellent "bite" for the powder coating, and providing
superior adhesion and longevity.
3)
Prior to powder coating we carefully review our customers work
sheet and mask and plug all indicated surfaces, using special
high temperature silicone tape and plugs. This insures a professional
job.
4)
Next, we look for the best place to "hang" your part
before powder coating your finish so as to not show a hook mark.
This is followed by "racking" your parts onto our
special baking racks prior to powder coating. The parts are then
"powder coated", with a special "powder coating
gun" that puts out around 90 kilovolts of charging voltage.
This causes the "powder" to pickup a
"positive charge" which needs to find
"ground". This "ground" is in our environmentally
controlled powder spray booth which has an
"earth" ground. This attracts the powder to the
"natural part".
We then carefully remove the parts from the spray booth being
careful not to touch the parts prior to the baking process.
(remember it is still in a baby like powder form).
5)
We then place the racks which are full of parts, into one of our
baking ovens. These oven are natural gas fired and use convection
heat to cure the "powder coating" at a range of
375-400 degrees F for 15-25 minutes.
"Convection ovens" heat the air by "rolling"
the heat evenly around the part, allowing the part to be heated uniformly. This
is critical in properly curing the coating.
We also run 2 temperature sensitive laser guided heat guns to
make sure that the parts are at the correct cure temperature. These
guns are extremely accurate. Once we reach the
"bake time" we set our industrial timers for the
correct time.
6)
All parts exiting the ovens once cool, are followed by our
inspection process. Any parts that do not pass our strict
inspection, run back through our process for a recoat. note):
some products made of poor quality materials may show less then
perfect results. We will do everything we can to minimize these
problems. You may be advised to put your part in a textured
finish which will hide many flaws!
7)
After inspection, all of the parts are removed from our baking
racks and sent to our packing area where we carefully remove the
tape and plugs. We then clean all surface areas to remove any
glue from masking, debur any powder from the plug areas and wrap
your parts for shipment by U.P.S, or customer pick up.
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12 Kendrick Road Unit 9
Wareham, MA 02571
Phone: 508-295-5601
Fax: 508-295-0403
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