[Shop-talk] powder coating

[Jeff Scarbrough]

On Wed, Feb 12, 2014 at 12:15 AM, w <wc5813 at gmail.com> wrote:

> I have a DIY Harbor Freight / Columbia Coatings PC set up. Never had
> bubbles. I would speculate if you had a porous substrate like some cast
> aluminums it could put out air or steam at baking temps and mess up the
> finish.

Would it help to "pre-bake" the item in question?  Or would it just
re-absorb whatever gasses out?