Bond It

Status
Not open for further replies.
C

cassie

Well-Known Member
Little experiment lads, got to job yesterday and the reveals were dripping wet ( applied bond it day before )
skimmed it anyway while tacky, worked fine, so does bond it have to be set ?? ermmm.. puts my theory to the test that its only sand, PVA, and green dye hey..lol... went back for money this morning and the reveals are sound... the reveals were a type of gloss paint and the water had gathered on the large glass window due to the rest of the attic being skimmed... just dabbed with kitchen roll and skimmed away...
 
It's def not sand I'm sure if I remember correctly that it's quartz:RpS_biggrin:
 
Last edited:
O yea , had a messy night last night I'm still asleep:RpS_laugh: I'm a plasterer not a chemist:RpS_laugh:
 
Last edited:
I add PVA to it mate... obviously thats got water in the mix I put in, about 3 to 1.... just shows you tho.. dont have to be dry, but then why use it, and not PVA which is a fraction of the cost, it does seal the substrate well, and its nice to come next day and just get on with the plastering... i only use it on big jobs, anything small and its PVA...
 
Cassie do you not think its more pure pva rather than watered down that they use ?? Thats why its 24 hours cos pure it takes a while to fully dry
 
I have skimmed over a small area of micro that was tacky from the day before. Was absolutely fine
 
The bond it thing, there's a pva called bond it,a blue can from selco, then there's thistle bond it and others etc, I take it the pva one is just ordinary pva ?
fn selco are so expensive now, 5.65 for 3mm stop plus vat, 47 plus for thistle bond it, half this price available on line
 
I think ideally you would have a PvA with sand(normally silica sand) already mixed in a 20 litre tub that you apply to any background then leave for 2-4 hours before skimming. The PvA would seal any high suction and the sand gives you a key on low suction. If it was wet next day like yours Cassie then no problem as it would be tacky and sandy when you skimmed. The trouble with Betakontakt and bondit is the liquid really needs to be dry not wet when applying. So in theory you may encounter problems later on.
 
CTPlastering said:
Cassie do you not think its more pure pva rather than watered down that they use ?? Thats why its 24 hours cos pure it takes a while to fully dry
Click to expand...
I think it is maybe pure PVA, maybe with a touch of latex added, yes, thats probably why its a 24hr dry time..
 
ryanswart said:
Have tried betokobtakt on high suction and it works well!


I'm using The Plasterers Forum Mobile App
Click to expand...

yes i I know but Cassie was on about a reveal that was wet when applying.
what would you have done?
I would have got my heat gun from the van and dried them out then skimmed.
 
jamesthefirst said:
I think ideally you would have a PvA with sand(normally silica sand) already mixed in a 20 litre tub that you apply to any background then leave for 2-4 hours before skimming. The PvA would seal any high suction and the sand gives you a key on low suction. If it was wet next day like yours Cassie then no problem as it would be tacky and sandy when you skimmed. The trouble with Betakontakt and bondit is the liquid really needs to be dry not wet when applying. So in theory you may encounter problems later on.
Click to expand...

im pretty confident mate, PVA can be tacky, so to me there doesnt seem much difference, maybe BG will answer..?
 
jamesthefirst said:
yes i I know but Cassie was on about a reveal that was wet when applying.
what would you have done?
I would have got my heat gun from the van and dried them out then skimmed.
Click to expand...

Good idea, I dont have one, but did give it a good dabbing with kitchen roll, took a while to pull the multi in, but trowelled up good...
 
the thing about adding water to it is you have to knock it up everytime you use it or all the grit congregates on the bottom of the tub, goes much further though, maybe twice.
 
Status
Not open for further replies.

Share this page

Back
Top