Difference between revisions of "Plastering tips"
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The problems most people have when plastering are: | The problems most people have when plastering are: | ||
| − | 1) Trying to get it smooth right away - forget it, just get the [[wall]] covered | + | 1) Trying to get it smooth right away - forget it, just get the [[wall]] covered as quickly as possible - a 10ft by 8ft wall should take one person no longer than 20 minutes to plaster 1st coat. |
| − | as quickly as possible - a 10ft by 8ft wall should take one person no longer | ||
| − | than 20 minutes to plaster 1st coat. | ||
| − | 2) Mixing the plaster, then realising they're not ready to apply it - walls | + | 2) Mixing the plaster, then realising they're not ready to apply it - walls not [[Adhesive|PVAed]], [[tools]] not to hand, can't find anything to stand on, [[Pattress|socket boxes]] not in etc etc. |
| − | not [[Adhesive|PVAed]], [[tools]] not to hand, can't find anything to stand on, socket boxes not in etc etc. | ||
3) mixing it too stiff - it needs to be wet | 3) mixing it too stiff - it needs to be wet | ||
| − | 4) taking too long mixing / overmixing / making too stiff then trying to | + | 4) taking too long mixing / overmixing / making too stiff then trying to water down with mixer - what many people don't realise is that from the first moment the powder hits the water, they've got about 40 minutes before it's as hard as a dog's head |
| − | water down with mixer - what many people don't realise is that from the | ||
| − | first moment the powder hits the water, they've got about 40 minutes before | ||
| − | it's as hard as a dog's head | ||
| − | 5) putting little tiny blobs on the wall and trying to spread them out with | + | 5) putting little tiny blobs on the wall and trying to spread them out with each motion - it needs long sweeping movements and each trowel full should cover about 4 square feet |
| − | each motion - it needs long sweeping movements and each trowel full should | ||
| − | cover about 4 square feet | ||
| − | so to recap: make sure the wall is ready and you have all tools (clean!) and | + | so to recap: make sure the wall is ready and you have all [[tools]] (clean!) and equipment ready, mix the plaster to a smooth paste slightly thicker than custard, and with no lumps, get the wall covered in long movements, starting |
| − | equipment ready, mix the plaster to a smooth paste slightly thicker than | + | at the top and working down to the skirting board, ignoring all lines, marks, lumps, bumps hollows and everything else, then when it's first coated, clean off all trowels etc and wait ten minutes before putting a second thin coat over, this removes 90% of the marks and you shouldn't have broken a sweat. |
| − | custard, and with no lumps, get the wall covered in long movements, starting | ||
| − | at the top and working down to the skirting board, ignoring all lines, | ||
| − | marks, lumps, bumps hollows and everything else, then when it's first | ||
| − | coated, clean off all trowels etc and wait ten minutes before putting a | ||
| − | second thin coat over, this removes 90% of the marks and you shouldn't have | ||
| − | broken a sweat. | ||
[[Category:Plastering]] | [[Category:Plastering]] | ||
Revision as of 16:34, 4 December 2012
The problems most people have when plastering are:
1) Trying to get it smooth right away - forget it, just get the wall covered as quickly as possible - a 10ft by 8ft wall should take one person no longer than 20 minutes to plaster 1st coat.
2) Mixing the plaster, then realising they're not ready to apply it - walls not PVAed, tools not to hand, can't find anything to stand on, socket boxes not in etc etc.
3) mixing it too stiff - it needs to be wet
4) taking too long mixing / overmixing / making too stiff then trying to water down with mixer - what many people don't realise is that from the first moment the powder hits the water, they've got about 40 minutes before it's as hard as a dog's head
5) putting little tiny blobs on the wall and trying to spread them out with each motion - it needs long sweeping movements and each trowel full should cover about 4 square feet
so to recap: make sure the wall is ready and you have all tools (clean!) and equipment ready, mix the plaster to a smooth paste slightly thicker than custard, and with no lumps, get the wall covered in long movements, starting at the top and working down to the skirting board, ignoring all lines, marks, lumps, bumps hollows and everything else, then when it's first coated, clean off all trowels etc and wait ten minutes before putting a second thin coat over, this removes 90% of the marks and you shouldn't have broken a sweat.