Re: powder coating
- Greg, I bought a cheap powder coat sytem to fool around and see what
it's like. I am very pleased with the results so far. The finish is
very durable. I took a piece I had powder coated and hit it with
a hammer a number of times to see how durable the coating was. I
dented the piece before I damaged the coating. But there are a few
things to consider.
1. A powder coat finish is thicker than paint (at least mine are) so
parts that need to fit into each other must be masked off.
2. A usual cure time is around 400 degrees F for 10 minutes. This
means the object must stay in the oven unitl in reaches 400 plus
another 10 minutes. So whatever is powdercoated must be able to
withstand those temps for those periods.
3. Not all powders are the same. Since I've been powdercoating stuff
that is to be outside I've used a powder that is made specifically
4. You need an oven to bake the object, therefore you are limited to
the size of your oven. I'm using an old electric range therefore my
parts have to be small.
I've had larger items powder coated at a local place I found. They
did a good job and were reasonbly priced. Check around and I'm sure
that you'll find someone in your area who can do the job for you.
Hope this helps.
--- In email@example.com, "fijisoldier" <fijisoldier@...>
> Hi group,
> I was looking up ways to paint aluminum. Many people suggest powder
> coating because of it's durability, but my concern is that once it
> scratched, is there any way to do touchups? I don't support they'llbe
> many because of the nature of handling telescopes, but stillwondering
> if there are any ways to do touchups.presume
> Also, I've done some research that discusses priming aluminum and
> painting it, which seems to be quite a bit of work, although I
> possibly cheaper. Has anyone done this and what has your successbeen?
> Finally, should there be any concern with the mild oxidation layer
> makes your hands black? Do I need to clean this off before paintwith
> alcohol or something of that sort? Do I need to clean it if I sendit
> for powdercoating?