Old hard wall

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Smurth1984

Active Member
Hi guys
I have a room to re-skim..
The old plaster has just lifted off the old hard wall which is sound and well stuck all the old plaster has been removed.
Just wondering if there is anything else apart from pva, ing to help kill the suction.
Cheers lads
 
That old hardwall will suck like a prozzy on price work...

PVA is what I would use... I know some would just throw a tonne of water at it to try and kill the suction....
 

malc

TPF Special Forces
2 coats of pva and skim.
or 1 coat of pva then a tight coat of thistle bonding and skim,
or skim in thistle universal.
 

Smurth1984

Active Member
Looking forward to it like a hole in my head :muyenojado:
Looks like a will be getting the pump sprayer out n soaking it with pva n water
 

carlos

Private Member
Sbr is waterproof. A watered down coat will control the suction. A neat coat will killed altogether. But can dry shiny and give poor adhesion.


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jamesthefirst

Private Member
The best out the lot is a watered down gyprime or knauf equivelent, pva always needs 2 coats on this background unless you can leave one coat to fully dry overnight.
 

Banjo69

New Member
Hi guys
I have a room to re-skim..
The old plaster has just lifted off the old hard wall which is sound and well stuck all the old plaster has been removed.
Just wondering if there is anything else apart from pva, ing to help kill the suction.
Cheers lads
stabiliser would be best to kill suction first first then pva or grit
 

Smurth1984

Active Member
Gyprime sounds good just looked at the data sheets
Well pricey tho but it does go a long way.
Thinkmi will just water down sbr then then skim as carnt be assed to go there after fridays got sheet up prep then skim saturday.
Cheers lads
Wheres the best place to get some gypprime if you lads knowm
 

jamesthefirst

Private Member
T
Gyprime sounds good just looked at the data sheets
Well pricey tho but it does go a long way.
Thinkmi will just water down sbr then then skim as carnt be assed to go there after fridays got sheet up prep then skim saturday.
Cheers lads
Wheres the best place to get some gypprime if you lads knowm

Trouble is yes it's expensive and you normally have to order it in advance but it goes a long way. As Banjo said and Carlos those 2 options are cheaper and easier to get hold of.
 
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