Post rewire lime plaster patching

[lllouise]

In my 1930s house I've just had a full rewire, I've been researching to see if I can patch the electrical chases myself (or at least educate myself so I know what I should be asking future decorators).

From the looks of it Thistle bonding with Gyproc Easifill seems my best bet but what I'm struggling with is if this is suitable for walls with lime plaster (I have a few older lime walls and some newer gypsum ones).

I dont know if it makes a difference but my plan was to reline the walls with paper as they were pre-rewire

Any advice much appreciated!

 

[sparkwright]

Unless it's some kind of listed building, folk just patch that kind of plaster with new gypsum type plaster.

You need a bonding coat for the deep spots, and multi-finish for the top layer.


Don't bother with DIY tubs of ready mixed so called 'patching plaster' - if you use it on deep spots it just doesn't hard, and takes absolute ages to set.

 

[Mike13]

Lime plaster and gypsum type plaster are basically incompatible, one is soft and moves with the house, the other is stiff.rigid and cracks when the house moves. A couple of houses ago I had a house with lime plaster that needed a bit of TLC, used filler to cover the holes and when I put the lining paper on it just pulled out all the filler as a bunch of separate dimples on the wall. A big pain to fix.

 

[sparkwright]

Lime plaster and gypsum type plaster are basically incompatible, one is soft and moves with the house, the other is stiff.rigid and cracks when the house moves. A couple of houses ago I had a house with lime plaster that needed a bit of TLC, used filler to cover the holes and when I put the lining paper on it just pulled out all the filler as a bunch of separate dimples on the wall. A big pain to fix.

Very fair comment, but it does seem to me that virtually all plasterers combine the two.