Oil based paint on slabs

gary0345

Just wondering If anyone can help me out. I was finishing up painting my door with red oil based paint and cleaning up soem paint I spilled. It was late and dark and I was unaware there was paint on my shoes walking the paint in to Indian sandstone slabs out the back. I didn't notice it until the next morning until it was dried. The slabs has obsorbed the paint making it difficult to remove. I've tried power washing it, scrubbing it with white spirits and santrax brick and concrete cleaner but non has really worked. Any help is much appreciated

antodeco

Paint all the slabs the same colour. #simplefix

GreeBo

You are going to have to mechanically remove it i reckon.
Sandstone is very porous unless you have treated it and based on your results you haven't.
Are the slabs cemented or sanded in place? Are they regular shapes?

recedite

Wire brush.

gary0345

GreeBo wrote: »

You are going to have to mechanically remove it i reckon.
Sandstone is very porous unless you have treated it and based on your results you haven't.
Are the slabs cemented or sanded in place? Are they regular shapes?

Thanks for your reply. They are cemented in place.

SEPT 23 1989

Dynamite is your only man

gary0345

recedite wrote: »

Wire brush.

I've tried wire brush with white spirits but unfortunately doesn't work. The paint has soaked in to the slabs

Force Carrier

SEPT 23 1989 wrote: »

Dynamite is your only man

Let's not go crazy.

A Pickaxe and a bit of elbow grease should have your stoop good as new.

Force Carrier

gary0345 wrote: »

I've tried wire brush with white spirits but unfortunately doesn't work. The paint has soaked in to the slabs

Hammer and chisel. Progressing to pneumatic tools.

the_pen_turner

How big is the paint mark
What kind of slab

Post up a pic

Vita nova

I'd try Nitromors paint remover as the paint is already dry. Dab it on and off. Try it first on an unseen part of the tiles/slabs just in case it causes discolouration.

FrancieBrady

Chemicals are the way to go.
You need some of the serious stuff pro firms use, not the DIYer stuff. And it will probably require repeat goes.

SnazzyPig

Remove the slabs and replace them upside down.

kneemos

Acetone spray(nail polish remover)might soften it.
Or pour some petrol on it and set it alight.

recedite

kneemos wrote: »

Acetone spray(nail polish remover)might soften it.
Or pour some petrol on it and set it alight.

Close the patio doors first though.
Remember, "safety first".

Force Carrier

kneemos wrote: »

Or pour some petrol on it and set it alight.

recedite wrote: »

Close the patio doors first though.
Remember, "safety first".

But the insurance pay out will buy him a new house with new slabs!

mad muffin

There really is no way to get rid of oil based paints that have penetrated porous tiles/slabs. The paint has gone right through it. You could try sanding it but I doubt it would work. Being red it should fade over the years as the uv rays break it down.

cml387

After Hours in useful information shock.

s4uv3

I wonder is there a fast track way to 'bleach' it with UV? Like an intense lamp?
Then again I have no idea what I'm on about, but it makes sense in my head.

SEPT 23 1989

s4uv3 wrote: »

I wonder is there a fast track way to 'bleach' it with UV? Like an intense lamp?
Then again I have no idea what I'm on about, but it makes sense in my head.

He should have used a lamp instead of painting in the dark

kowloon

If it has soaked in I'd guess any solvent won't do much, it might soak across a larger area and dilute the colour a bit, but you won't be able to remove it any more than you can take the piss out of a swimming pool. Have you tried consulting a druid?

conorhal

Could you not just flip the tile over? Presuming both sides have the same finish of course.

gary0345

conorhal wrote: »

Could you not just flip the tile over? Presuming both sides have the same finish of course.

I'd say the other side could be destroyed cement.

YFlyer

FrancieBrady wrote: »

Chemicals are the way to go.
You need some of the serious stuff pro firms use, not the DIYer stuff. And it will probably require repeat goes.

Acetone.

gary0345

YFlyer wrote: »

Acetone.

I'm going to try a small bit of acetone and see if it works. Thanks

Fr_Dougal

mad muffin wrote: »

There really is no way to get rid of oil based paints that have penetrated porous tiles/slabs. The paint has gone right through it. You could try sanding it but I doubt it would work. Being red it should fade over the years as the uv rays break it down.

Pretty much what mad muffin has said.

You could try using a hot pressure washer, it will come up a bit but may not be perfect.

What you could do is seal the rest of the slabs to make it blend in a bit, don’t seal the painted slab, let it weather for the summer.

The good news with sandstone is that paint will fade over time, if it was me I’d leave it until next year and then worry about it.

FrancieBrady

YFlyer wrote: »

Acetone.

No, it is even stronger than acetone. A strong acid. Seen it used very effectively on a project I was on.

Acetone will evaporate before having any effect I would imagine.

Signore Fancy Pants

Have you tried turning it off and back on again?

FrancieBrady

Fr_Dougal wrote: »

Pretty much what mad muffin has said.

You could try using a hot pressure washer, it will come up a bit but may not be perfect.

What you could do is seal the rest of the slabs to make it blend in a bit, don’t seal the painted slab, let it weather for the summer.

The good news with sandstone is that paint will fade over time, if it was me I’d leave it until next year and then worry about it.

Sandstone, because of it's nature will clean itself over time. But depends on how deep the stain is.
I would say maybe a few mm's but not much more.

kneemos

Soak some rags or tissues in paint stripper and leave it on overnight,might draw out the paint.

Zorya

You might have to learn to love it.

Archeron

Build a sacrificial altar just above the stained slabs, nobody would question the red stains then.

YFlyer

FrancieBrady wrote: »

No, it is even stronger than acetone. A strong acid. Seen it used very effectively on a project I was on.

Acetone will evaporate before having any effect I would imagine.

He could try HF and get rid of the whole slab.

Perhaps DMSO with 6% sulphuric acid to remove the paint.

buried

Get a Sander machine and try and sand a bit off and see how that goes. I wouldn't try add any more liquid based solution to it. All that's going to do is make your tiles look like Mikhail Gorbachev's noggin x 100

Esel

Camouflage the areas affected?