Concrete Stain Remover

[smidsy]

Anyone know of something that will remove soaked in oil from concrete?
I have tried standard degreaser and pressure cleaning and that did sod all so I need something strong.

[Master Splinter]

Caustic soda will strip out any organics, but if you're already down to very fine particulate carbon you may be able to lift this with a poultice of lime and kero left for several days.

[george mavridis]

Agree with MS, also cover the poultice with some plastic ( glad wrap is fine) and tape down around edges. This will stop it drying out too quick.

[crowie]

This tip is from Shannon Lush.


Mix "Plaster of Paris" and water until it’s a similar consistency to peanut butter.

For every cup of mixture you make add one teaspoon of dish-washing liquid.

Paint no more than half an inch of mixture over the stain.

Leave it to dry and then sweep the mixture (and your stain) away.

[george mavridis]

Be careful of Shannon Lush, some of her advice is not worth using.

[Master Splinter]

I'd say 'sweep' would be more like 'kick, curse and swear' and the leftover stuff would just be disguising the stain.