[Shop-talk] powder coating

[Jim Juhas]

I have not had this problem with purchased powder coating, but I also do 
my own with Eastwood equipment.  In joined pieces, I have had problems 
with residue at the seams, I expect from water, oil, paint remover, 
solvents, etc. causing bubbling or lifting.  Pre-heating helps.

The powder coating service I use also does the media blasting, so they 
seem to get it right.

On 2/12/2014 7:09 AM, Tim wrote:
> The guy told me that they baked my wheels twice. After the second bake 
> off and then the second powder coat he said they looked better but was 
> still a little bit of bubbling and then still the pitted spot.
>
> He said they are going to order a fresh box of that color to make sure 
> it isn't the powder and then do hte process again. Hopefully third 
> time will be a charm.
>
> tim
>
>
> On Wed, Feb 12, 2014 at 5:32 AM, Jeff Scarbrough wrote:
>
>> 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?
>> _______________________________________________
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