 pre-primer etching?, anyone used Eastwood After Blast? |
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| jmitro |
 Jan 7 2017, 09:06 AM
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Senior Member  Group: Members Posts: 713 Joined: 23-July 15 From: Oklahoma Member No.: 18,986 Region Association: None 
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My car was sandblasted to bare metal inside and out. I used Eastwood After Blast.....supposed to be a cleaner and also etches with phosphoric acid. Will be priming with an epoxy primer.
The problem is now there is a chalky white residue in many areas that has to be scuffed off. This is going to be a much larger time committment than I anticipated. http://www.eastwood.com/eastwood-afterblast.html According to Eastwood, I should be able to prime without any further prep, but obviously this will not work. Any suggestions about removing the residue and prepping for primer? (IMG:http://www.914world.com/bbs2/uploads_offsite/i75.photobucket.com-18986-1483802178.1.jpg) |
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| Bulldog9 |
Jan 7 2017, 03:32 PM
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Senior Member Group: Members Posts: 705 Joined: 21-August 13 From: United States Member No.: 16,283 Region Association: MidAtlantic Region |
I havent used the Eastwood product, but did use the PPG two step acid etching and metal prep followed by a 2 part epoxy primer. Crazy as it sounds, part of the process is to rise with water and wipe dry. This eliminated most of the 'ash' or white chalky residue. Before priming I did wipe everything down with a prepaint cleaning solvent/wax/grease remover.
http://www.bapspaint.com/docs/psheets/PPG/...ltron/P-226.pdf I did find in some of my 'testing' that by not rinsing off the panels completely and wiping them dry did leave a white residue. Hope this helps! |
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Posts in this topic
jmitro pre-primer etching? Jan 7 2017, 09:06 AM
mb911
My car was sandblasted to bare metal inside and o... Jan 7 2017, 09:30 AM bretth From what i understand the acid needs to be neutra... Jan 7 2017, 09:41 AM jmitro prep sol looks like a wax/grease remove, not a pro... Jan 7 2017, 12:09 PM Perry Kiehl From what I've read you don't use self-etc... Jan 7 2017, 02:59 PM jmitro that's what I've read also. I'm using ... Jan 7 2017, 03:09 PM
jmill That white stuff is from the acid. Had the same st... Jan 7 2017, 03:52 PM |
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