Help identifying plaster type and preparation

[AGW2]

I am renovating my house in the UK which was built in circa 1900 and have exposed some plaster underneath a couple of layers of wallpaper which I have now managed to remove. I am not sure of it's age or whether the plaster is lime based, gypsum based or something else, thus how original it is.

The plaster has a slightly coarse, grainy texture and is a sort of off white/yellow colour (although I am colour blind). There is evidence that some modernish fillers have been used in some patches. The conditions seems fairly good with no clear evidence of de-lamination.

Is this lime plaster and if so what would be the best way to prepare it before painting?

 

[superspread]

I am renovating my house in the UK which was built in circa 1900 and have exposed some plaster underneath a couple of layers of wallpaper which I have now managed to remove. I am not sure of it's age or whether the plaster is lime based, gypsum based or something else, thus how original it is.

The plaster has a slightly coarse, grainy texture and is a sort of off white/yellow colour (although I am colour blind). There is evidence that some modernish fillers have been used in some patches. The conditions seems fairly good with no clear evidence of de-lamination.

Is this lime plaster and if so what would be the best way to prepare it before painting?

Looks like a lime finish
You have a lot of prep to do to get that ready for decs as it is

you could go over it in a lime finish if you want to keep the integrity of the house intact ?or just have it replastered in a gypsum finish ? This is probably your cheapest and best option imo

 

[AGW2]

Looks like a lime finish
You have a lot of prep to do to get that ready for decs as it is

you could go over it in a lime finish if you want to keep the integrity of the house intact ?or just have it replastered in a gypsum finish ? This is probably your cheapest and best option imo

Thanks very much for the advice. In terms of preparation before a lime finish what would generally be needed?

 

[Stewie03]

Your colour blind but just not on the colours whites and yellows

 

[superspread]

Thanks very much for the advice. In terms of preparation before a lime finish what would generally be needed?

All paper off, any loose or flakey filler removed, paint it with dg27

 

[AGW2]

Your colour blind but just not on the colours whites and yellows

Haha got me there. I perceive them to be white or yellow

 

[AGW2]

All paper off, any loose or flakey filler removed, paint it with dg27

Thanks very much. Are there any good tapes for cracks that can be used in conjunction with a lime finish? There are a couple of hairline cracks in the ceiling and wondered what the best approach for them would be?

 

[superspread]

Thanks very much. Are there any good tapes for cracks that can be used in conjunction with a lime finish? There are a couple of hairline cracks in the ceiling and wondered what the best approach for them would be?

Just the self adhesive scrim tape u get at builders merchants

 

[Retired Spread]

chop it off all back to brick then call @John j (the forums supremo when it comes to old brick) to come and slap Bonding coat on it