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Powder Coating
- How It’s Done
Powder coating is an advanced method of applying an attractive and protective
finish to a wide range of materials and products. We are surrounded by
items that are powder coated. For example, patio furniture, garden tools,
mail boxes, kitchen appliances, automotive trim, and wire closet shelving
are just a few of many! Powder coating is an advanced, simple way of spray-painting
a very fine, dry plastic powder paint onto a metal surface. The powder
used for the process is a mixture of finely ground particles of pigment
and resin, which is sprayed onto a surface to be coated. As the powder
paint cloud gently leaves the front of the spray gun, it is charged with
static electricity. The charge attracts the powder paint to the part that
requires coating. The part is then placed in an oven. The powder paint
gels and cures into a beautiful and durable finish. The result is a uniform,
durable, high-quality, and attractive finish.
What Are Its Advantages?
Powder coating is more durable. It gives you the most economical, longest-lasting,
and most color-durable quality finishes available. Powder coated surfaces
are more resistant to chipping, scratching, fading, and wearing than other
finishes. Color selection is virtually unlimited with high and low gloss,
metallic, and clear finishes available. Colors stay bright and vibrant
longer. Texture selections range from smooth matte surfaces to a wrinkled
finish, and rough textures designed for hiding surface imperfections.
Protects the Environment
Powder coating is also highly protective of our environment. While liquid
finishes contain solvents which have pollutants known as volatile organic
compounds (VOCs), powder coating contains no solvents and releases negligible
amounts, if any, of VOCs into the atmosphere. In addition, most powder
coating overspray that does not adhere to the part can be retrieved and
reused, virtually eliminating the waste commonly found in liquid finishing
processes.
Thousands of products and parts are powder coated
Automotive The
automotive industry uses powder coating on wheels, bumpers, hubcaps, door
handles, decorative trim and accent parts, truck beds, tool boxes, radiators
and numerous engine parts. A clean powder topcoat has been developed to
protect auto bodies. BMW and Volvo are using it on their new model cars,
and GM, Ford, and Chrysler have formed a consortium to test this technique
on their production lines.
Architecture/Building
The architectural and building market powder coats aluminum extrusions
used on frames for windows and doors and modular furniture. Powder coating
is a perfect application for entry gates and handrails. Many highway and
building projects use powder coating on light poles, guard rails, signs,
posts, and fencing. And let’s not forget signage. We can powder coat your
sign - it will last forever.
Appliances
The appliance industry benefits from powder coating on front and side
panels of ranges and refrigerators, washer tops and lids, dryer drums,
air-conditioner cabinets, water heaters, dishwasher racks, and cavities
of microwave ovens. Powder coating has also replaced porcelain enamel
on many washer and dryer parts.
Everyday Products
There are also innumerable everyday uses for powder coated products such
as lighting fixtures, antennas, and electrical components. Farmers have
powder coated tractors and farm equipment. Fitness buffs use golf clubs
and golf carts, ski poles and bindings, snowmobiles, bicycles, and exercise
equipment that are powder coated. Shop owners have powder coated display
racks, shelves, store fixtures, and vending machines. Office workers use
metal furniture, computer cabinets that are powder coated. Parents have
powder coated baby strollers, cribs, metal toys, and wagons. And home
owners have lawn mowers, snowblowers, barbecue grills, patio furniture,
garden tools, electronic components, bathroom scales, tool boxes, and
fire extinguishers which benefit from a powder coated finish.
Non-Metal Products
While powder coating started as an alternative to finishing metal products
only, the development of powder that can be cured at lower temperatures
has allowed powder coating to expand to non-metal surfaces such as ceramics
and some wood and plastic applications. Powder coating on wood is growing
by leaps and bounds. Manufacturers of home-office furniture, kitchen cabinets,
children's furniture, and outdoor grill tables are discovering that powder
coating makes these "hard use" products retain their new look much longer.
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