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Cheers. All very comprehensive although I'm sure it's a bit trickier when actually doing it.
Most looks pretty reasonable but the plaster seems to come in 25kg bags which is a bit excessive.
aggi-
Most looks pretty reasonable but the plaster seems to come in 25kg bags which is a bit excessive.
25kg sounds like a lot. It's not. I relaid four slabs on my front path recently. Took 30kg of sand and 40kg of cement, and they're still not level.
I'm not even going to mention the 1.7 tons of slate I put on the front garden. By hand. With a spade and a bucket. Oooops...
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British Gypsum do 7.5 and 12.5kg bags for some of their range.
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You can get it in 5kg bags sometimes. You could just use a filler but it might cost as much as a bag of bonding. It's just the easiest material to do it with because it's designed for that job.
I think the 25kg bags are pretty cheap. Try and find a building site they might give you a small amount.
Brommers
atk
Airhead
It's not that difficult but you need smallish amounts of a few materials that come in larger quantities.
Hopefully your wiring is in some form of trunking possibly plastic, pinned into place so that it's easy to plaster over.
PVA the channel, mix up some bonding plaster (not multi finish), slap that in and roughly level it off, best if its a little below the surface but just less than proud is best.
Let the bonding plaster dry, 24hrs should do it if the central heating is working. Wash the bonding off the walls surrounding the channel with a sponge. Should now be clean walls.
Use some TX110 from toupret or similar if you have another filler you prefer. Fill the channel to flush. If you want a slight texture to match surrounding walls then get creative with a sponge. Let it dry a bit then sponge of any excess.
Paint with Gardz from Zinsser. Let that dry and finish with emulsion.
So you need pva, plastic trunking and some nails, bonding plaster, decorators filler & gardz