[TheForge] Wax finsihes

[schade at acegroup.cc]

On Jul 21, 2008, at 6:42 AM, Cindy and James wrote:
>  Unless the client allows that portion to be painted, I will have that 
> section powder coated.  So far, he has said no to paint.
>
> James Allcorn
>



James,

Powder coating is paint. Just a different way of putting it on.

Bob
__________

<http://www.finishing.com/Library/pennisi/powder.html>

What is powder coating?

Powder coating is by far the youngest of the surface finishing 
techniques in common use today. It was first used in Australia about 
1967.

Powder coating is the technique of applying dry paint to a part. The 
final cured coating is the same as a 2-pack wet paint. In normal wet 
painting such as house paints, the solids are in suspension in a liquid 
carrier, which must evaporate before the solid paint coating is 
produced.

In powder coating, the powdered paint may be applied by either of two 
techniques.

The item is lowered into a fluidised bed of the powder, which may or 
may not be electrostatically charged, or
The powdered paint is electrostatically charged and sprayed onto the 
part.
The part is then placed in an oven and the powder particles melt and 
coalesce to form a continuous film.

There are two main types of powder available to the surface finisher:

Thermoplastic powders that will remelt when heated, and
Thermosetting powders that will not remelt upon reheating. During the 
curing process (in the oven) a chemical cross-linking reaction is 
triggered at the curing temperature and it is this chemical reaction 
which gives the powder coating many of its desirable properties.