So I screwed up and used the wrong activator - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-15-2019, 05:59 AM
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So I screwed up and used the wrong activator

So I'm in the middle of blocking the car out, and ran out of primer. Sent my wife back to the body supply place to get more primer. I've been using 5 star extreme primer/surfacer/sealer, direct to metal. Anyway, they gave her 5 star extreme max build primer. I didn't realize and used the activator for the other stuff. I had already shot 1/2 gallon of it before I realized, and the activator for this other stuff is a different part number. First thing I noticed sanding is that it clogs 320 paper. I had to wet sand it. It doesn't feel soft though. So what do I do? Thanks!

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Old 01-15-2019, 06:33 AM
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How long had it been and how long was it suppose to take to cure? How about temperature also?
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Old 01-15-2019, 07:42 AM
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It's been on for 3 days. I just took acetone on a rag and it comes off. Temps have been in the 70's
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Old 01-15-2019, 07:51 AM
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The 2 activators have some pretty different ingredients in them. If they were just some slightly different ratios of a couple things, I probably wouldn't be concerned so long as it seemed to dry out and act proper.

I am going to make an assumption that you are using 5 start products to be extra cautious about budget, and now you have a tough decision to make.

Honestly, I'd get what I could sanded off and put a couple coats back on with the proper activator. If it causes issues with the basecoat/topcoat, you will only be that much deeper in.
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Old 02-22-2019, 12:53 AM
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Quote:
Originally Posted by dwighty390 View Post
The 2 activators have some pretty different ingredients in them. If they were just some slightly different ratios of a couple things, I probably wouldn't be concerned so long as it seemed to dry out and act proper.

I am going to make an assumption that you are using 5 start products to be extra cautious about budget, and now you have a tough decision to make.

Honestly, I'd get what I could sanded off and put a couple coats back on with the proper activator. If it causes issues with the https://bestpricefinds.com you will only be that much deeper in.
How did it go?
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Old 02-22-2019, 05:46 AM
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Modern paints are very complex chemically and few people really understand how they all react. Not to disparage anyone's feedback on this subject, but, before spending anymore time and money on this project I'd go straight to the manufacturer's tech staff and discuss it with them. I took advice from a guy who owned a body shop for forty years and it totally screwed up my last paint job. Any technical questions I have now goes straight to the experts.
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Old 02-22-2019, 06:00 AM
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Quote:
Originally Posted by Molon Labe View Post
Modern paints are very complex chemically and few people really understand how they all react. Not to disparage anyone's feedback on this subject, but, before spending anymore time and money on this project I'd go straight to the manufacturer's tech staff and discuss it with them. I took advice from a guy who owned a body shop for forty years and it totally screwed up my last paint job. Any technical questions I have now goes straight to the experts.

Very good and correct advice given....

Pep
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Old 02-22-2019, 08:31 AM
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Yep, I have screamed it from the roof tops FOLLOW THE TECH SHEET. And you can't for some reason, call the tech line! I was a paint rep, and believe me, they have heard it all, don't be embarrassed, you don't need to be a pro to call them and BELIEVE ME, pros make the same mistakes!

Brian
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Old 02-22-2019, 09:23 AM
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How did it go?
Not sure why I got quoted or where that hyperlink came from, but you might want to quote the OP to get a response.
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