PVA 1 coat V 2 coat

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bassbooster

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I was always taught, on reskims to PVA twice, one to seal and one to stick, and Ive always done this, even though it can take ages to be skimable, done a few different jobs lately with a few different plasterers and they all seemed to use 1 coat of thick PVA about 50/50 mix, leave it to dry and skim... plaster never slid around the walls and working time of it was about the same as 2 coats at 5:1/3:1..... anybody else just use 1 coat of thick PVA?
 
Depends on back ground high suction or low a good spread should tell just by looking at the wall
 
As said above really ;) i very rarely use a 1st pva coat ,as a stabiliser will do a better job on heavy suction , if there is little or no suction prefer to use bonding agents these days .
 
unless its a high suction wall, then it just gets one coat of pva all this 3/1 and 5/1 nonsense I couldn't tell you about I just mix it up in a gorilla tub to the consistency I like the ratio I couldn't tell you.
 
gps said:
unless its a high suction wall, then it just gets one coat of pva all this 3/1 and 5/1 nonsense I couldn't tell you about I just mix it up in a gorilla tub to the consistency I like the ratio I couldn't tell you.
dito ;)
 
2coat always! Preferably put first on day before.
Even use sbr to prime sometimes if a really high suction wall
 
Most of the time I go on with a neat quality PVA (unibond). If it really sucks in, i'll 2 coat it.
 
plasterjfe said:
this old debate again.... IMO avoid pva if you can


This....Every other thread seems to be about pva


I just look at the wall and know what it will pull in like, or you will know buy how much pva you use on your frist coat of pva..

Iv'e had a gallon of pva last me about 5 jobs now...
 
Two coats of B&Q's "no nonsense" pva for me everytime. So far (touch wood) i've not had any nonsense!
 
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