Cleaning paint off PVC

[Dave Plowman (News)]

I need to modify a 110mm PVC soil stack which has been painted with ordinary oil paint. What's the best way to remove the paint so I can do a solvent weld joint? Is Nitromors safe on PVC?

[Staffbull]

I'd have thought it would melt it! if it's just enough you need off for a solvent weld I'd just sand that area

[cuppycake]

[Dave Plowman (News)]

It does need dividing, after all. ;-)

But if I did get someone in, this would be the likely scenario...

'Can't be done, guv. Have to replace the entire stack. About 1000 quid to you mate - cash of course.'

[Owain]

Wire wool or scrapey thing?

Owain

[Steve]

I don't think Nitromors is safe with most types of plastic. It made a bit of a mess in the old plastic/ fibreglass bath when I tried to clean the Nitromors laden paintbrush.

How about caustic soda, as used for cleaning drains, applied where you need to remove the paint?

Be careful with this stuff!

Steve

[EricP]

Hasn't it been said many times in here that gloss paint on this plastic forms a chemical bond that is permanent?

I may be mistaken but remember noting it as it might have been of good use to me.

[Andrew Gabriel]

More of a solvent weld bond I would say, but same end effect.

[Dave Plowman (News)]

It does eventually flake off - at least in places. In my case with a south facing stack painted black it took about 15 years. ;-)