Hi Guys and girls , just need some information!!

A old double brick home with solid plaster inside the previous owners just covered the walls with supposedly modern wall paper back some 30 years ago ??

I have removed the paper and cracks in the plaster all over the place. Understandably this was expected. I have read, " How To Repair cracks in lath and plaster walls and ceilings" on http://www.how2plaster.com/restlath.html which is a great source of information.

The problem starts here , i have removed one of the floor skirtings to access the power point so the electrician can can run his wiring to the other side of the room where a another power point is badly needed rather than running a cord across the room.

When the skirting boards was remove large chunks of plaster separated from the wall also.

The plaster is very thin about 2mm to 4mm and the base seems to be lime based mix.which in some areas is up to 20mm to 30mm thick. The lime base just falls apart to dust in ones hand if pressures is applied on the broken piece of solid plaster.

I tried in one spot a full mix of corners cement which seems to have bonded but have been now waiting for well over 4 to 5 days for it to set . It is still wet to touch once I have sanded a layer of to smoothen out the patch work. If I do the whole house this way I might be waiting years for it to set ( Completely dry ).

I have repaired cracked sections in the method described in the link I posted and the corners cement has set well and the repairs look and fee magic.

My other thought is what can I use for a base ( not the old lime method ) and have this base just a few millimetres below the original surface level and then finish it of with corners cement and the works done.

A gentleman mention something call , " plaster sand " and a concrete cement mix of 6 parts sand and 1 part concrete cement and apply this on the walls where large sections have cracked badly and fallen out.

I went to Bunnings today and asked for " plaster sand " and the guy looked at me if i had two heads and said there is no such thing?

What are people using to apply as a base for their solid plaster repair when large sections are needs to be replace.

What are you using for the top coat as the plaster finish ?

Can someone shed some light on this topic would be appreciated

Cheers


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