any plasterers in?
Discussion
mornin...
ive just 'opened up' a fireplace at my parents place and need to re-plaster some of the old stuff that came off when i was having fun with the hammer... i understand i should use 'render' (i think thats the right word) under any plastering i do, but my question is, can i just use render alone (ie, no plaster) because i plan on papering the wall after anyway?
cheers nerf
ive just 'opened up' a fireplace at my parents place and need to re-plaster some of the old stuff that came off when i was having fun with the hammer... i understand i should use 'render' (i think thats the right word) under any plastering i do, but my question is, can i just use render alone (ie, no plaster) because i plan on papering the wall after anyway?
cheers nerf
The product you need is called Bonding. It will be in a blue bag available from WickesB&Q et al.
Hack off all the loose plaster and then mix up some PVA with water (about 50/50) should be fine.
Paint this on the area to be plastered. This will control the suction - ie the plaster will have a chance to cure before drying out and cracking.
Once the PVA has dried give it another coat of PVA and wait until it becomes tacky.
Now mix up your bonding. Clean, cold water. You are after a smooth creamy consistancy. Apply this in a coat up to about half an inch. If you need to go thicker than this wait for the first coat to go hard (not dry) and then apply a second coat. Get a straight edge of some description and rule off the surface so it is flat.
If you are happy with this as a finish there is no technical reason why you can't paper over it however if you are going to the trouble of the above I would personally wait until the bonding has hardened (not dried) and give it a quick flash over with a coat or two of multifinish (orange bag).
Any queries just shout up.
Hack off all the loose plaster and then mix up some PVA with water (about 50/50) should be fine.
Paint this on the area to be plastered. This will control the suction - ie the plaster will have a chance to cure before drying out and cracking.
Once the PVA has dried give it another coat of PVA and wait until it becomes tacky.
Now mix up your bonding. Clean, cold water. You are after a smooth creamy consistancy. Apply this in a coat up to about half an inch. If you need to go thicker than this wait for the first coat to go hard (not dry) and then apply a second coat. Get a straight edge of some description and rule off the surface so it is flat.
If you are happy with this as a finish there is no technical reason why you can't paper over it however if you are going to the trouble of the above I would personally wait until the bonding has hardened (not dried) and give it a quick flash over with a coat or two of multifinish (orange bag).
Any queries just shout up.
B17NNS said:
The product you need is called Bonding. It will be in a blue bag available from WickesB&Q et al.
Hack off all the loose plaster and then mix up some PVA with water (about 50/50) should be fine.
Paint this on the area to be plastered. This will control the suction - ie the plaster will have a chance to cure before drying out and cracking.
Once the PVA has dried give it another coat of PVA and wait until it becomes tacky.
Now mix up your bonding. Clean, cold water. You are after a smooth creamy consistancy. Apply this in a coat up to about half an inch. If you need to go thicker than this wait for the first coat to go hard (not dry) and then apply a second coat. Get a straight edge of some description and rule off the surface so it is flat.
If you are happy with this as a finish there is no technical reason why you can't paper over it however if you are going to the trouble of the above I would personally wait until the bonding has hardened (not dried) and give it a quick flash over with a coat or two of multifinish (orange bag).
Any queries just shout up.
copycat Hack off all the loose plaster and then mix up some PVA with water (about 50/50) should be fine.
Paint this on the area to be plastered. This will control the suction - ie the plaster will have a chance to cure before drying out and cracking.
Once the PVA has dried give it another coat of PVA and wait until it becomes tacky.
Now mix up your bonding. Clean, cold water. You are after a smooth creamy consistancy. Apply this in a coat up to about half an inch. If you need to go thicker than this wait for the first coat to go hard (not dry) and then apply a second coat. Get a straight edge of some description and rule off the surface so it is flat.
If you are happy with this as a finish there is no technical reason why you can't paper over it however if you are going to the trouble of the above I would personally wait until the bonding has hardened (not dried) and give it a quick flash over with a coat or two of multifinish (orange bag).
Any queries just shout up.
you don't need to PVA the wall if you use Hardwall thought IIRC
Don't be silly.wot Batty & B17NNS said but don't forget to scratch between the bonding and thistle multifinish so it keys.
Also on the multifinish as you are trowling up when it starts to go off run a wet but not saturated paintbrush infront of the trowel. Keep troweling up with the brush infront until you are happy that all is smooth. You can fill in any minute holes as you go.
Also on the multifinish as you are trowling up when it starts to go off run a wet but not saturated paintbrush infront of the trowel. Keep troweling up with the brush infront until you are happy that all is smooth. You can fill in any minute holes as you go.
Edited by Firkin D on Tuesday 17th March 21:47
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