Removing paint from slate

[Ashes_Firewood]

Hi. I've got a couple of slate slabs that were an internal wall and have been painted both sides.

 

I'm wanting to remove the paint and use them to build a hearth out of.

 

I started with them looking like this:

 

Pressure washed them and there were 4 layers of paint on them that came off easy apart from some of the last green layer as you can see:

 

Has anyone got any experience removing paint from slate without damaging or staining the slate in the process? So far I've been recommended nitromors but unsure how that will react

[se7enthdevil]

try fire...

[Lazurus]

water based, enamel, oil based, will depend on the type of paint, good old paint stripper may work, wrap them in Clingfilm after applying and leave overnight, I don't think it will affect the slate. Nice sized pieces.

[treequip]

try fire...

 

Worst idea ever, do not apply heat. Moisture pockets in the stone will vaporise, expand and cause pops and bangs some of which can be serious. At best you will ruin the surface and at worst you will be picking it out of your teeth :thumbdown:

[treequip]

Hi. I've got a couple of slate slabs that were an internal wall and have been painted both sides.

 

I'm wanting to remove the paint and use them to build a hearth out of.

 

I started with them looking like this:

[ATTACH]209760[/ATTACH]

 

Pressure washed them and there were 4 layers of paint on them that came off easy apart from some of the last green layer as you can see:

[ATTACH]209761[/ATTACH]

 

Has anyone got any experience removing paint from slate without damaging or staining the slate in the process? So far I've been recommended nitromors but unsure how that will react

 

A ten minute job for a media blast. You can get an attachment for your pressure washer.

[Ashes_Firewood]

Definitely not going to use heat then!

 

At the moment I'm thinking of testing nitromors on the side that's not going to be seen.

 

Yes they are nice sizes, 2.1m long x 0.48m wide x 30mm thick. It will be a shame if I can't make use of them.

[Ashes_Firewood]

A ten minute job for a media blast. You can get an attachment for your pressure washer.

 

Is that basically sand blasting? I presume the slate would be hard enough to stand up to that?

[treequip]

Water blasting

 

[Ironbark]

First I'd try soaking them in water overnight or longer if you can. This usually works for metal door furniture with paint on it.

 

If that still doesn't work Anglia Lime company do Clingstrip and Solvastrip paint removers witch I use a lot for getting paint off wooden beams.

 

If you ask for the sample size, you may only have pay the postage.

[Timber Man]

Caustic soda