plaster shelling off ceiling

[henry]

Look at a job today and the down stairs ceings the skim was boxed and in patches shelled off.
I have seen a few like this and seems only on houses built in the 60s for what ever reason.
Another X file .

 

[Nisus]

It wasn't in Glasgow was it Henry? :-0

 

[DannyMac]

What do you mean by boxed?

 

[henry]

what i mean danny is the plaster would scrape off easy there is no bond to the plasterboard .

 

[henry]

It wasn't in Glasgow was it Henry? :-0

Funny you should say that they just move from glasgow to be near there dauhter, I did find it very hard to understand them.

 

[malc]

thats what happens when they put creame of tarter in the plaster.

 

[derbyskimmer]

I've just had one the same Henry, I think it's old plaster lime in it, was urs pink finish or whiteish?

 

[henry]

why do you think that malc

 

[malc]

why do you think that malc

in the sixties cream of tarter was used to kill the setting time. they put the finishing plaster through the mixer put the whole house on and trowel up next day. they would put on all the sets of angles, drop the rules,and skim the walls in sirapite. the ceilings either done in thistle board or mirite [gyproc finish] they would add cream of tarter to slow the set and lime to get a better finish. this practise mucked the whole keying of the plasters up

 

[spunky]

How much would you use in a skimming bucket ?

 

[Arti]

a cap full

 

[malc]

How much would you use in a skimming bucket ?

just a pinch into the water will kill it

 

[henry]

I've just had one the same Henry, I think it's old plaster lime in it, was urs pink finish or whiteish?

In the 70s w always put lime in the skim and yes the skim was whiteish,

 

[bubbles65]

thats what happens when they put creame of tarter in the plaster.

What about cement, would that have a similar effect?

 

[Nisus]

I have seen it only a couple of times like you say Henry it came straight off the plasterboard.

 

[derbyskimmer]

So do we reckon this is what stopped it pulling into the plasterboard? The ceilings I encountered had paper on when the customer stripped it the whiteish finish shelled off. They removed it all and I pvad it and skimmed. Although on the following rooms I convinced them that I should overboard to save them hassle of scraping. Also easier for me as the reskimmed ceiling took a bag and half to skim whereas when I boarded same size ceiling it took just a bag.

 

[derbyskimmer]

Oh and also I made a bit more money this way too!

 

[NPS]

ive seen that before, its weird how clean the board is underneath

 

[malc]

What about cement, would that have a similar effect?

cement has the opposite effect, it shortens the setting time, i have no idea if itweakens the key

 

[bubbles65]

Yeah I know about it shortening the set Malc, that's why I was wondering if the faster set didn't allow for a proper bond :RpS_thumbup:

We used it quite a bit in the 80's...........well my gaffer did :-0