I have followed this thread and as I have been studying the P/C market,
have a couple of points to add. Infra-red is a popular way of heating the
substrate for P/C ing , however it is being replaced with ultraviolet
light for powders that are UV curable. There are low temp powders on the
market that allow one to powder coat mylar and other thin substrates in the
printing industry. Some new powders will cure at something like 150 degrees
F. It is unlikely that we hobbyists will see these in common use for
automotive applications any time soon.
Having said that, who knows? - the pace of technology today is staggering.
(At least to me it is!)
Jeff Johnson
rabid P/C 'er
With thanks to 'FT' for getting me started.
At 11:12 AM 6/6/01 -0400, you wrote:
>Message text written by Scott Bloomer
> >A microwave works by exciting polar molecules, like water, causing them
>to
>wiggle violently. They change the microwave energy into heat energy. Most
>plastics are
>low in this kind of molecules, so they could be microwaved without
>becoming hot.
><
>
>Well put. I seriously doubt microwaving would work. Infra-red, on the
>other hand has the highest likelyhood of working. Infra-red will heat the
>opaque surface (powder) and just the top layer of the substrate. If you
>are very careful you could powder coat a plastic part with only a very
>slight melting of the outer surface of the part.
>
>I think
>
>Dave
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