Cleaning Oil Off Concrete?

[Mik]

you guys got no idea, hydrocloric acid 32 percent, un diluted is the only way to go.

<{POST_SNAPBACK}>

he wan'ts to remove the oil, not the concrete!!

[CEF11E]

freeze it and smashit with a hammer, thats how i get gum outta my beard.

Kitty litter crumbles and leaves residue everywhere.

HCL works great, just dont splash yourself with it.

[foznice]

I clean oil off workshop floors about twice a week.. and the only thing we use is good old fashioned petrol. Just chuck a little petrol over the top, and wipe it with a cloth, good as new!

[predator]

lol.. HCL is not going to eat through the whole concrete like in the movies !

I ended up using Caustic Soda.. diluted in water.. worked pretty well... similar to HCL probably (couldn't find it at the hardware store, it was probably there somewhere, or maybe they aren't allowed to sell it anymore).

Caustic Soda is pretty heavy duty so have to be careful you don't get it in your eyes, etc..

[Eug]

cant buy proper HCl nowadays - apparently something to do

with it being one of the ingredients terrorists are after.

we use it all the time in teh labs, only universities, etc etc are

licensed to buy them.. it doesnt burn through stuff.

Acetone may work...

[blind_elk]

Just up in the Bursons near work - Selleys seem to have a couple of products specifically for cleaning oil-in-concrete.

Cement / kitty litter only work for the initial spill, to absorb the liquid oil. Caustic soda is actually available in supermarkets (it's basically Draino). DO BE CAREFUL - it is highly corrosive, and will generate massive amounts of heat as it dissolves in water (the water can be near boiling!)

[GTRsean]

export degreaser in a can from supercheap. spray it and hose off.

works great!!!

[M34N]

you guys got no idea, hydrocloric acid 32 percent, un diluted is the only way to go.

<{POST_SNAPBACK}>

funny, we spilled some hydrocloric acid on the concrete of my work today and it reminded me of this thread it doesn't eat through the concrete, it does bubble for a while after being spilled, it will clean the concrete good but will stain it!

CLR is actually really good, acetone doesn't do much.

[Sumo]

cant buy proper HCl nowadays - apparently something to do

with it being one of the ingredients terrorists are after.

we use it all the time in teh labs, only universities, etc etc are

licensed to buy them.. it doesnt burn through stuff.

Acetone may work...

<{POST_SNAPBACK}>

We get HCl for our dry delivered Batteries.

Funny you mention people using it for different things, as some druggo looking bloke wanted to buy a 5 litre container off us. He didn't really care about the cost... <_<

Cheers

Sumo