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Take a few minutes and read the information below...
it will help you decide which finishing method is right for your
products or project. If you still have questions, feel free to
give us a call or send us an email.
Powder coating is a method of painting that uses a powdered polymer resin which
is bonded to the part. At Central Powder Coating, we coat both ferrous and nonferrous
metals using "Electrostatic Spray" equipment.
First, the part is washed and pretreated with iron phosphate and rinsed again
with de-ionized water and sealer. Once the part has been pretreated it is dried
in a dry off oven. The next step is the electrostatic application of the powder
to the part. The powder is charged by an electrode which creates an ion cloud.
The powder particles pass through this cloud and picks up a negative charge.
Since the parts are ground to the conveyor there is an electrostatic attraction
of the powder particle to the part. The parts now enter the curing oven where
the powder melts, cross links, and bonds to the surface of the part. Once the
parts exit the oven and cool the finish is complete.
Powder is available in a wide variety of formulations, textures, gloss levels,
and colors. Common formulations applied at Central Powder Coating include;
epoxy, hybrid, urethane and polyester. Depending on the performance criteria
of your specific parts, we will be happy to help you pick the proper formulation
for your application.
Virtually any color, texture, and gloss level can be matched. We have several
hundred colors of powder from DuPont, Cardinal and Tiger. Matching the color
of powder coated parts to parts that were painted using traditional methods
is no problem. However, due to the process involved in manufacturing the powder
resin, custom colors can be expensive unless the requirement is large. Typical
lead times for custom matches can range anywhere from two to six weeks depending
on market conditions. Click on the links below for more information on some
of the stock colors available.
Our goal at Central Powder Coating is to complete your product and have it ready
for shipment within 2-3 days of receiving your material. Depending on the availability
of the materials required to process your order, lead times may vary.
Powder coating is an extremely attractive, durable, scratch resistant, chemical
resistant, and UV resistant coating. Depending on the specific formulation
applied, each of these properties will vary. In general, epoxies exhibit good
mechanical properties but fare poorly in direct sun light. Urethanes and polyesters
exhibit excellent weatherability. Unlike most liquid coatings there are no
solvents to evaporate in the powder coating process. Powder coating is environmentally
friendly since no VOC's are emitted into the air.
- Parts are cured within minutes of exiting the oven.
- Powder coating provides superior edge coverage.
- Excellent part to part color consistency.
- Since powder coated parts virtually have no drips, runs, or
sags, the reject rate is very low.
- No paint sludge has to be disposed of because powder can be
reclaimed and recycled, thus minimizing the impact on the environment.
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