bonding and bubbles

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oasis

oasis

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not skimmed on bonding in a long long time but to day i had heavy artex walls so we did a tight coat on the "new" bonding.. it all tuned with'in and hour or so any how i did a set first then did the bonded walls fully dark drown and i even had to wet it up to hold it From tearing starlight away!

ok second coat on ... troweled up yet in the light i can see bubbles all over it.. one wall went brown all over and i gave it a dry trowel and that seemed to take it off..

but my question is what can i do to stop this next time?
 
sounds like the bonding was keyed to deep.

when you cross trowel hold your trowel at at 90 degrees to the wall, put a very small amount of water on the wall and trowel them out
 
Did you do two coats on out of the same mix??

Put 1st coat on & leave it to firm up don't mess with it
quick flatten if needed then 2nd coat & let firm up
finish as normal.
You shouldn't get any blisters this way.

Trick is don't keep going over it while wet this will cause blisters.
And so will 2nd coating while 1st coat hasnt firmed up enough,
Cause your basically putting 1 thick coat on & blisters will show through top coat aswell as 1st ;)
 
Bonding is always the same just wait for the skim to turn and by the final trowel the pimple should go you get it on most backing plaster just one of those things plus with the change in season it seems like every set takes ages to go off.
 
Nock up yer bonding with a half a bag of board finish trowel on as normal over the artex 20 Min's or so rub up with wet plastic float it will set in 45 min half an hour skim with multi finish not board finish cause it will blister like fduck :P
 
Just trowel the blisters out mate,with a very very fine mist of water applying lots of pressure but only when the wall is as brown as linford cristie allover.
Try to avoid using water when troweling up or use sparingly and dont over trowel.
It happens though mate you just gotta plod on.
If there still there next day,wrap a lint cloth over ur trowel and apply lots of pressure and cross trowel the fcukers out that way.Just trowel this way in the bad areas in case it scuffs the wall a little!!!
 
grand wizard said:
put you trowel flat on the wall and iron them out before it turns brown
Click to expand...
Thats the correct way to remove blisters wizard.ive been waiting for the right quote cheers .
 
well your suppose to wait 2-3 hours for bonding to set....hahemm but anyway
sounds like your trowling out too soon, just leaving it a bit longer then trowel
again should avoid this... as the guys were saying you could have keyed the
bonding too deep...

get a plastic float then screw in a small screw, just so the tip of the screw is slightly
coming through the float.. actually use two screws about 4" apart, this is devil floating
your wall, in which u are closing your wall in and keying it!!!!!!!
 
so how do i get my sand and cement render flat? i tried using this devil float the other day after ruling off the wall and before sponging, but it just put lines all over the wall
 
steve cov said:
so how do i get my sand and cement render flat? i tried using this devil float the other day after ruling off the wall and before sponging, but it just put lines all over the wall
Click to expand...

lol you taking the (french word)?
try use a float without the screws... and why u sponging render? u are only
bringing the stones out of the render for rain to sit on.
just top coat and rub it up with a plastic float, all u need !!

ooh ya ...real nice!!
 
Thanks spark, I wondered where I was going wrong. I've always been taught to sponge float my render. Is this not normal?
 
said this before on here when im bonding just as it firms up i ruun the wall over with an old saw keeping the blade practacly flat against the plaster and pushing the teeth of the blade over the plaster its keys really well and gets rid of that slimey 2 or 3 mm you get on the surface as it goes off and you can skim it quicker, dont know if that reaads the way its supposed to but give it a try
 
Bonding needs to dry out a little more before skimming than hardwall to stop the bubbles but if you aint got time to wait, leave your last trowel till the skimmings really gone off than trowel up with plenty of edge and pressure to remove them.
 
As said earlier, put some finish in with the bonding if you intend to skim same day, a couple of dash trowels does it - or leave it and skim the day after.
If you DO have blisters forming, a flat, dry trowel helps get rid of the f*ckers.
So I've been told, cos I've never had any - my timing is perfection:RpS_tongue:
 
bubbles65 said:
As said earlier, put some finish in with the bonding if you intend to skim same day, a couple of dash trowels does it - or leave it and skim the day after.
If you DO have blisters forming, a flat, dry trowel helps get rid of the f*ckers.
So I've been told, cos I've never had any - my timing is perfection:RpS_tongue:
Click to expand...

I'm wth he bubble man
 
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