Epoxy Primer Screwup - HELP!

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Epoxy Primer Screwup - HELP!

#1 Post by 5448 » Sat Jun 23, 2012 10:52 pm

So I just got done priming all the sheetmetal on my minitub project with PPG MP170 epoxy primer.
When I was cleaning up, I realized my dumb ass mixed MR186 reducer with the primer instead of the MP175 catalyst.
How screwed am I?
When I realized what I did, I could have puked in my hat.
My sinking feeling is without the catalyst, the primer doesn't stick, and I've got some sanding in my future.

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Re: Epoxy Primer Screwup - HELP!

#2 Post by Bruce69Camaro » Tue Jun 26, 2012 6:45 am

According to what I see, you should be ok, because PPG states that MP170 only needs to be thinned so the reducer you used should be ok.

You mentioned you were worried that the primer won't stick, if the metal was prepped properly, you shouldn't have a problem, I normally take something like 240 or 400 grit and scuff everything up, wipe it down with a grease remover, quick dust job with air and spray it.
Those who think they know it all have no way of finding out they don't......... :scratch:

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