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What To Do With Sand Scratches In Metal? 🙁

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Hey, it’s Tony from LearnAutoBodyAndPaint. How’s it going #BossPainters? Here’s another question from Robert. 

“I used fiber disk to get rid of some surface rust on my project. It left some minute scratches in the metal. Could I use an epoxy primer to fill in those scratches, or do I have to use a finer fiber disc to remove the scratches before I primer?”

When doing bodywork you’re going to get grind marks in metal all the time. You don’t need to sand it out because the filler primer will fill it up. 

I would use an epoxy primer if you have super huge area but if it’s just a small area like you’re doing a bodywork repair, you have to take out the dent. And then, grind down the metal in a certain little area, also, laying some filler primer on it will be ok. 

You may check LearnAutoBodyAndPaint and search grinding, it will show you a relevant video I did in 2016 called The Stud Gun Operation and Applying Body Filler. This will show you how I grind down, pull out a dent and how to finish the whole process. 

Use an 80-grit sandpaper to grind, then feather it down to 150-grit and put some primer on then block it out.  You have to put heavier primers if you need to put some glaze in some areas. 

It’s Tony from LearnAutoBodyAndPaint. I hope this short Q&A video answers your question. If you have problems with your projects, just send an email with your detailed question and send in pictures or a 1-minute video of your project so I can help you further.  

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Talk soon! Cheers!

Tony

Other Helpful Links:

Stud Gun Operation and Applying Body Filler

Quick and Easy Cheats On How To Use a Stud Gun Welder

Live Dent Repair Demo Using Grinder and Stud Welder Gun Plus Q&A

🤔 Can You 2k Filler Primer Over Small Bare Metal Spots

2k Filler Sealer Primer Flash Time (Is Sanding Needed Between Coats?) 🤔

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