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> Ospho over primer?
KaptKaos
post Aug 29 2009, 06:00 PM
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I have some surface rust peeking through some spots that I have primered. What happens if I brush some ospho on those spots? Will it seal?

Or, am I better off just going down to bare metal and applying it?
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scotty b
post Aug 30 2009, 04:54 PM
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rust free you say ?
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OSPHO IS PHOSPHORIC ACID !!! You do the science. The stuff is made for bare metal only adn should be put on bare metal ONLY !!!! You used a cheap primer that does not etch and you either need to strip it and apply an etching primer or spot strip it, re-prime those spots and get a good sealer on it. You get what you pay for (IMG:style_emoticons/default/shades.gif) IF you do use Ospho FOLLOW THE FREEKIN DIRECTIONS. It is not a brush on and paint over product. It WILL cause you problems if not properly neutralized.
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Posts in this topic
KaptKaos   Ospho over primer?   Aug 29 2009, 06:00 PM
993inNC   go back to bare! its great stuff when used cor...   Aug 29 2009, 06:02 PM
kwales   Is it a grey or red primer??? It's porous... ...   Aug 29 2009, 10:41 PM
9146986   You need to take it back to bare metal and treat t...   Aug 30 2009, 08:30 AM
Mikey914   Bare metal - self etching primer :D   Aug 30 2009, 02:23 PM
KaptKaos   self etching primer :D I thought Ospho did the...   Aug 30 2009, 02:25 PM
scotty b   OSPHO IS PHOSPHORIC ACID !!! You do th...   Aug 30 2009, 04:54 PM
KaptKaos   B)-->
QUOTE(scotty b @ A...   Aug 30 2009, 05:59 PM
charliew   All the above. But I like to go ahead and put the ...   Aug 30 2009, 05:14 PM
Rand   Strip all paint, primer, and other contaminents aw...   Aug 30 2009, 05:34 PM

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