Old lime and what is best

[Socksitis]

So we are now working on the dreaded stair turret - I have put it off as it involves planks and ladders.
Old lime plaster has over the years - lots of years, deteriorated. Some parts of the wall have now lost the skim coat of lime plaster and have flaked away to reveal the levelling coat. We have tried to remove flakey paint and the loose plaster, the top coat, not knocking off the levelling coat.

Sp the options? If I did not know better I would like to seal the wall, PVA or something similar, but this is lime. So my choices are use the sealant and then the seciltek paint over the wall as is - my preferred choice, I like seciltek paint.

Or, if I had lots of time, money and not a fear of the ladders and planks, then I may decide to use something like DG 27 primer and then the heritage top coat of lime plaster.

What is possible?

 

[a twig]

Cos I'm a madman I'd skim in hydraulic lime (NHL2) - then limewash /paint as appropriate

 

[TheForge]

Is this interior or exterior? Absolutely don’t use a sealant, it completely negates the benefits of the lime render/plaster and will trap moisture in the wall.

It would be useful to see a photo to understand the situation but as long as the underlying plaster is sound and you can create a key you may be able to re skim straight onto it with a fine lime plaster.

Limewash will be much cheaper than silicate paint as well.

 

[Socksitis]

I have used claypaint everywhere else, this is just for the dodgy walls, where I know silicate will stick and seems to stay, do you think the claypaint will stick as well as the silicate?

When I say sealant, this is the seciltek primer, rather than a sealant. One of those 'must have's' when you buy a certain product :roll:

Maybe I do use DG27 before a skim of heritage lime plaster? - ladders and boards hmmmmm

 

[88v8]

Boards? Ladders? Soooo last year.
https://www.youtube.com/watch?v=NCWqm_is95s

Ivor

 

[Cubist]

Boards? Ladders? Soooo last year.
https://www.youtube.com/watch?v=NCWqm_is95s

Ivor

Coo, want one... do you think I could get chainsaw mods on the gloves? Would be a big help with the pollarding.

 

[Socksitis]

The stairwell in question

 

[Andys]

The stairwell in question

I'm visualising a stairwell....

did a photo drop off your last post Socksitis?

 

[Socksitis]

Having a problem attaching the piccy, it says file is invalid?

 

[Socksitis]

here we go again

 

[Socksitis]

well that didn't work
Attachments, Add file,
Image file is invalid? It is .jpg

 

[Abi Cott]

http://tinypic.com

Then post the link with [.img]........[/img] the link in the middle and remove ALL the fullstops

 

[Abi Cott]

All of them including that handy little one I've put at the front of the first img

 

[Socksitis]

Will it work?

Yippeeeeeeeee - it worked!

 

[Kearn]

168j6oo_th.jpg

Will it work?

Yippeeeeeeeee - it worked!

it has worked, but a 5kb it is too small and low res to see!!

 

[MatthewC]

Back to the question. In my house we kept as much of the original plaster as possible, so I had several walls half old and half new. I applied DG27 to the old plaster and then each whole wall was skimmed with top coat (Mike Wye Regency, ISTR). They are all perfect 8 years later and you can't see the joins!

One wall was the stairwell but mine is rectangular and so much easier to do with cleverly positioned ladders.