I Have a Stainless Steel Sink....

Pressure wash / wire brush / sandblast?

Start a new fad. Coat the whole thing with concrete.

Expansion and contraction of the metal should help break it loose, heat it up, cool it down....High pressure water will remove it, (how high?), till it breaks loose...You might just sell it as is and let the next guy worry about it...You might spend so much time trying to clean it that you take a loss even if you get asking price....It's probably only good for a utility sink anyway...$50 tops..

I'm liking SolarEagles expand/contract very much, this is good. I doubt, but it may be worth shot.

It's not a $$$ situation, simply some junk I'm looking at and thinking it can be made good. Thanks you very much for good ideas. I don't wan't this to become a 'tub'.

I could kick myself for not having rescued this thing. After extensive research, I think I'm done. The chemical reaction is a bit beyond me. Had I the brain to extract it before work, there would be a few hundred more quid in the pot. Lesson learned.

Thanks to all for initial input - I'll bin it or pass on to somebody who doesn't mind a bit of crud. Concrete off Al just doesn't work.

Nope, be careful heating Stainless. you need to stay out of the 800-1200 degree F range or you will induce Sensitization Cracking. when heat treating and welding you have to transition that temperature range as quickly as possible.

You could modify the heat/cool process by soaking the concrete in water or hanging a soaking cloth over it for a while and then applying frozen CO₂ without heating the sink.

Use it for a planter.

Vince

Put wheels and an engine on it and drive it round Peckham?

If only it were cast iron....................................

How To Remove Cement From Stainless Steel - Video Results

Maybe something like this?

http://www.harborfreight.com/air-tools/specialty-air-tools/compact-air-needle-scaler-96997.html

Surely you could post a photo?

You could try a penetrating oil then catch it on fire *wink*

From a Bath and CR4L to a Sink and Wok... we just need a Bowl and Run... and we've evolved full-sphere... but how to plot our progress?

Hrm... only time will tell.

Seriously though, you mentioned a significant thickness to the sink... a little loss from grinding won't hurt would it?

Go on, post a picture, I need cheering up. A gentle tap with a mallet on the opposite side to the concrete might shock it off. Other ideas posted here are good. When done, polishing with scotchbrite pads, keeping in one direction, will leave a nice fine grained surface that will hide minor defects.

The square holes are not a problem, you can get plastic washers which fit the holes & give a round hole for the tap.

First it was a damn bath that broke all CR4 records, now you want to do it with a damn sink!!!!!!!

WHAT IS HAPPENING IN THIS HOUSE?

I GUESS THE "LOO" WILL BE THE NEXT BLOG!!! CAN'T GET THE S**T OFF!!!!!

now you want to do it with a damn sink!!!!!!!

actually, its two of the same, he recycled the bath to a sink.......

The cement, that was one of the failed suggestions on how to remove it.

Put it on the front of your garage door. Those things normally clean them self fairly quick.

You could call it the "Polish abrasive", but it would not be nice for some people in this world.

stainless sinks have usually have a matte finish. try repolishing it. i can''t help with the grit

Stainless steel sink my foot! This is all leading up to the bats in the belfry, and rumour has it, probably where the "squirrel" keeps his tilting barber chair........

However, on the off chance this is actually about concrete accretion, I did manage to salvage a steel bucket using propane flame. The concrete sort of 'pinged' offofit.

If it's nice heavy SS, you may want to put a little money into it. The square openings shouldn't be a problem...........plenty of fixtures available to cover them.

Get the concrete residue off with some sandpaper and have it powder coated in either white or black, turning it into a new sink. If you want to take a risk, but have a truly one of a kind item that can command more money, have it powder coated in something like bright red.

I just read an advertisement this morning in a concrete journal and thought of this discussion. I've never heard of it before, never seen it work, and thus I'm not giving it my approval, but here's what I found.

It was called "back-set" (the website listed was romixchem.com). The advertisement claimed it would turn concrete back into washable mud without the use of acids. If you end up using it let us know how it worked out.