Will metal rust through mill scale? - JeepForum.com
 
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post #1 of 12 Old 09-14-2013, 11:41 AM Thread Starter
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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post #2 of 12 Old 09-14-2013, 06:42 PM
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It will eventually rust through the scale I wouldn't do it leave the bedliner alone.

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post #3 of 12 Old 09-14-2013, 09:41 PM Thread Starter
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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post #4 of 12 Old 09-15-2013, 09:17 AM
aggiejon
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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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post #5 of 12 Old 09-16-2013, 10:13 AM Thread Starter
TJJeepJosh
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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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post #6 of 12 Old 09-16-2013, 11:44 AM
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Probably end up cheaper and faster to just go to Home Depot and buy a gallon.
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post #7 of 12 Old 09-19-2013, 05:02 PM Thread Starter
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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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post #8 of 12 Old 09-19-2013, 05:55 PM
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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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post #9 of 12 Old 09-19-2013, 07:42 PM
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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post #10 of 12 Old 09-20-2013, 06:41 AM Thread Starter
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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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post #11 of 12 Old 09-20-2013, 11:17 AM
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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post #12 of 12 Old 09-25-2013, 02:12 PM
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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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