Fixing messed up wall after removing tiles? Skimming/plastering?

Astrozombies

FreeBear said:

Astrozombies said: If you are gdown to the lathe then it can't be done easily with finish, it has to be built out first.

This is a lathe - - You don NOT want to be plastering over one.

These are laths - - Typically, one would use three coats of lime plaster.

The OP may be better off finding a small piece of plasterboard and fixing that to the wall before using the OneCoat.

Bloody phone hates me.

Astrozombies

Yes, it can go on 13 mm but it's a nightmare to work with at that thickness. 2 or 3 thinner coats make it much more manageable and less cracking around the join.
  We always use bonding on sites, even for smaller holes as it fills better, can go on thicker easier, dries pretty fast and it's less resistant to cracking away from a join.

delmonta

Thanks guys, well the one coat is already ordered and its been a bit of a nightmare getting most things locally. So I'll give it a go with one coat. You said do multiple layers, but I dont know if you only meant that for bonding coat? Can one coat be applied in multiple layers also...I know it goes against the name!

Astrozombies

My advice is to build it up in a couple of layers.
Bonding would be put on in 1 go then skimmed.
You CAN put the one coat on in 1 go then trowel it up but it'll be easier and neater to do it in 2.

I don't use the stuff anymore, tried it a few times (the office bought it for patching) and we sacked it and went to get bonding.

delmonta

Astrozombies said:

My advice is to build it up in a couple of layers.
Bonding would be put on in 1 go then skimmed.
You CAN put the one coat on in 1 go then trowel it up but it'll be easier and neater to do it in 2.

I don't use the stuff anymore, tried it a few times (the office bought it for patching) and we sacked it and went to get bonding.

Yeah after ordering it I found a lot of people online saying it's not very good. I just took my brothers advice!

FreeBear

Astrozombies said: You CAN put the one coat on in 1 go then trowel it up but it'll be easier and neater to do it in 2.

Thick layers of any plaster are liable to crack as they dry out. Multiple thinner layers are better - Let them dry a little before putting the next coat on. If you use fibres, that will help to limit the amount of cracking, as will reducing the amount of water used.

Thick layers can also get quite hot as it sets due to exothermic reaction which also leads to cracking.

Astrozombies

Yeah, plus, one coat ripples too much when put on over 7 or 8 mill.
 Tiger stripes can be a problem as well if putting second coat on to soon.
   The good old days of Browning then Carlite skim in hundredweight bags were fat better than some of the new rubbish they put out.
 Unifinish had quite a few from the firm I worked for actually going down to B.G. near Gotham  trying to drum into them that out was Crap.

delmonta

Thanks guys, I'll try and used the one coat in layers then even though its not intended for that. My delivery comes on Friday, but they just said the hawk was out of stock! So I'll have to improvise that

floppydisk1

you can make your own hawk - any thin strong square piece of plastic or ply wood with little handle screwed to it ( just make sure screw head is not protruding out ) , or scoop little plaster on your trowel and spread it. Its only one little job you need it for, as long as you put it on the wall  you are fine.  Speed of your spreading does not matter as on that small wall you have to wait for the wall to dry anyway, not other way round.

delmonta

floppydisk1 said:

you can make your own hawk - any thin strong square piece of plastic or ply wood with little handle screwed to it ( just make sure screw head is not protruding out ) , or scoop little plaster on your trowel and spread it. Its only one little job you need it for, as long as you put it on the wall  you are fine.  Speed of your spreading does not matter as on that small wall you have to wait for the wall to dry anyway, not other way round.

Great advice, thanks!