"Dirt" on cast iron top

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Forum topic by aatwatch posted 07-01-2013 10:14 PM 1803 views 0 times favorited 13 replies Add to Favorites Watch
View aatwatch's profile


40 posts in 2071 days

07-01-2013 10:14 PM

Hey everyone,

Can someone please tell me how to restore my 6 month old cast iron table top? I have tried Slipit and that just shines it up and the brown (rust?) won’t go away.. Please help!

13 replies so far

View Woodknack's profile


12401 posts in 2556 days

#1 posted 07-01-2013 10:22 PM

If the rust is light, just use wd40 and some steel wool (then clean it off) or Evaporust.

-- Rick M,

View MrUnix's profile


7005 posts in 2375 days

#2 posted 07-01-2013 10:23 PM

WD-40 and a scotch brite pad. Give it a good coat of wax once clean to keep it from coming back.


-- Brad in FL - In Dog I trust... everything else is questionable

View toolie's profile


2147 posts in 2804 days

#3 posted 07-02-2013 12:59 AM

mineral spirits and a rough (first) and then a finer (smooth) scotch brite pad. then paste (johnson’s, for example) wax (no auto wax with silicone – may cause finishing problems).

-- there's a solution to every just have to be willing to find it.

View ART LACKEY's profile


113 posts in 3555 days

#4 posted 07-02-2013 02:54 AM

Iv’e used—say 320 sandpaper and a light solvent with a hard wood block and sanding in one direction to restore machine tops. you can also use a random orbit sander with the same grit if you don’t mind the sanding marks.

-- Old turners don't die, they just turn to dust!

View NGK's profile


93 posts in 2087 days

#5 posted 07-02-2013 03:10 AM

Surely there are other ideas out there! Dig deeper, boys. I’m reminded of the many ways to get a “water ring” off of a varnished table.

View UpstateNYdude's profile


917 posts in 2159 days

#6 posted 07-02-2013 03:22 AM

This works awesome, I clean off my CI tops and they come out looking beautiful every time.

-- Nick, “I am always doing what I cannot do yet, in order to learn how to do it.” – Vincent Van Gogh

View emart's profile


445 posts in 2804 days

#7 posted 07-02-2013 03:39 AM

scotchbright pads work wonders. if you have a grinder you can use a wirewheel to remove deep pockets(wear a face shield)

another method that works very well for ultra rusted parts is to build yourself a cheap electrolysis rig. look up guides online. all it takes (i believe) is some baking soda, a battery tender, some carbon rods available at the welding store, and a bit of time.

make sure you seal the metal with wax or it will just happen again

-- tools are only as good as the hands that hold them

View shampeon's profile


1860 posts in 2359 days

#8 posted 07-02-2013 03:31 PM

emart, that saw top doesn’t need such drastic measures. Just some scotch brite pads and some solvent or Barkeeper’s Friend.

-- ian | "You can't stop what's coming. It ain't all waiting on you. That's vanity."

View gtbuzz's profile


427 posts in 2617 days

#9 posted 07-02-2013 04:01 PM

Boeshield Rust free works, but be very careful in using it. The instructions on the website are correct – the instructions on the bottle are not.

Here’s my thread summarizing:

It does work well, but you pretty much have to wipe it on and wipe it off otherwise you’ll get some staining in the CI.

View ChuckC's profile


843 posts in 3111 days

#10 posted 07-02-2013 04:06 PM

I’ve used my 5” oscillating sander to clean up my TS. After that whatever you prefer to make it slick.

View MrRon's profile


5141 posts in 3419 days

#11 posted 07-02-2013 05:15 PM

Lots of elbow grease. Don’t try to baby it. It’s cast iron. It will take whatever you throw at it. Any of the other replieideas will work.

View gfadvm's profile


14940 posts in 2866 days

#12 posted 07-03-2013 02:07 AM

My freebie Ridgid bandsaw top was a LOT nastier than your top. I used my palm sander (Don’t put any holes in the paper) starting with 220 and finishing with 400 grit. I used mineral spirits as a wet sanding lube. Quick and easy. Then wax liberally.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View Mark Shymanski's profile

Mark Shymanski

5623 posts in 3888 days

#13 posted 07-29-2013 04:37 PM

Make lots of projects, run enough wood across that and it’ll polish up real nice :-)

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

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