Different formulations (epoxy, urethane, polyester or a hybrid)
are determined by the intended use of the item. For example, urethane
and polyester offer the best exterior durability while epoxy is
best for corrosion protection and chemical and solvent resistance.
A range of literally thousands of color glosses, metallics and antique
effects are available and local companies offers hundreds of "stock"
colors all for same price. Consumers may also look through sample
books and pick other colors to be ordered from the manufacturer
at an additional cost (Powders must be mixed at factory, you can't
mix two together or stir in a pigment as with liquid paint.)
It is also possible to have something matched perfectly by sending
to the manufacturer for computer analysis. Computerized matching
requires extra time and adds a considerably higher extra service
charge, as well. (A builder might need metal doors to match anodized
window frames perfectly).
Because the surface of parts must be free of oil, dirt and rust
prior to powder-coating, companies offer sandblasting, chemical
and acid pre-treatments. The customary turn-around tiime is 7-10
days, and often job can be done sooner for an extra "rush"
fee.
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