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Unread 09-14-2013, 11:41 AM   #1
TJJeepJosh
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Will metal rust through mill scale?

Bought a pair of rock sliders and the website advertised them as coming in raw steel. Got them and painted one with duplicolor bed liner (read up on prep- sanding with 180 grit, cleaning with acetone, etc.).

I think there was mill scale on the metal before I painted them and I don't think the sanding got it all off.

My question is could I strip the bedliner and leave the sliders raw with the mill scale on top? or would the metal rust through that?

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Unread 09-14-2013, 06:42 PM   #2
JeepZJlover
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It will eventually rust through the scale I wouldn't do it leave the bedliner alone.
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Unread 09-14-2013, 09:41 PM   #3
TJJeepJosh
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Hmm.. need to figure out a way to get more/all of the scale off then. That added to the fact that this duplicolor liner sucks.. comes off so easily.
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Unread 09-15-2013, 09:17 AM   #4
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Use buffered muratic acid to clean off the mill scale. Brush and rinse, compressed air to dry, the a wipe down with wax and grease remover.
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Unread 09-16-2013, 10:13 AM   #5
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http://www.amazon.com/Green-Envy-Mur...d_sim_sbs_hi_4
think this would work? or should I just go get the straight acid
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Unread 09-16-2013, 11:44 AM   #6
aggiejon
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Probably end up cheaper and faster to just go to Home Depot and buy a gallon.
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Unread 09-19-2013, 05:02 PM   #7
TJJeepJosh
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Wonder if a grinding disc rubbed over the surface of the metal would work as an alternative. The acid sounds like the best option but requires a lot of precaution stuff that I'm trying to avoid the work for
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Unread 09-19-2013, 05:55 PM   #8
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Sand blasting is inexpensive, and will remove just about anything. Sandblasting removes oil and silicone contamination, and leaves a texted finish that is perfect for paint or other coatings.
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Unread 09-19-2013, 07:42 PM   #9
oldcelicaracer
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Just go and get a zicronic flap disk for a 4 inch grinder and lightly grind down to bare steel,or u can get some aircraft stripper,this stuff will eat through bondo and should make the scale scrape off

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Unread 09-20-2013, 06:41 AM   #10
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Going to try the disc grinder first since I already have that. How much would sand blasting cost approximately?
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Unread 09-20-2013, 11:17 AM   #11
CJ7-Tim
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Call around, I can get an entire axle blasted for $40, a bumper should be less. Spending several hours with a grinder kinda sucks.
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Unread 09-25-2013, 02:12 PM   #12
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Quote:
Originally Posted by TJJeepJosh View Post
That added to the fact that this duplicolor liner sucks.. comes off so easily.

Very true. I just used some Herculiner on the bottom of my J10. Works great and is tough. I had bought a gallon of the Duplicolor but returned it when I started reading reviews. ( I read quite a few) Almost no one has great success with Duplicolor. I would totally recommend the Herculiner.
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