710 cleaner after sanding epoxy

rustover

Member
Just wanted to ask a quick question regarding cleaning a panel before the next step. This tonneau cover that I'm working on, after blocking it, I've been blowing it off using compressed air and then before painting I'm wiping it down with 710. I have a usc sprayer that I spray a small area then wipe it off. To me it seems like I'm using a lot of the 710. I'm cleaning this cover until there is nothing coming off onto the towel, which is taking me about 6-7 times. I'm folding the towel in 4ths so that I have clean area when one side gets dirty. Sanded epoxy is what I'm cleaning.

I love this 710 and don't want to waste it or waste money. Am I doing something wrong or does it take quite a bit to get the panel prepped?
 
You are not doing anything wrong i pretty much use nothing but the waterborne now and i probably used 4 gal on the gto im restoring im anal about clean there is no such thing as over cleaning
I do think the sprayers do use more but i think that's the best way to apply pre clean because you are trying to float contaminants to the top so i feel it needs to be wet to accomplish this im sure there are others thst think differently but thats how i roll
Justin
 
To save expensive material, you can use Sprayway glass cleaner at first to remove sanding residue, then follow with #700 and/or #710 for final cleaning. 99.9% of what you are seeing is simply wet sanding dust which could be removed by washing with soap and water or Sprayway.
 
Thanks Justin and crash. I do have some Sprayway glass cleaner and that is a great idea for the first few passes. I thought about a damp towel for the first couple of passes but was worried if there was bare metal, but I guess as long as you hit it with compressed air and coat the same day it should be ok.
 
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