Problems with substraight

[chriselevate]

Hi,

Rendered all four walks of an internal room a month ago.

Tried to multi finish it this week so day before I 2 coat soaked in 1:5 PVA. Day after I used same mix of PVA to cover again and let go tacky.

Whilst plastering the mix dried REALLY quickly and was sooooo difficult to work with.

Any idea what the problem was and how I can avoid it happening with the other walls?

Thanks

 

[peaps]

Hi,

Rendered all four walks of an internal room a month ago.

Tried to multi finish it this week so day before I 2 coat soaked in 1:5 PVA. Day after I used same mix of PVA to cover again and let go tacky.

Whilst plastering the mix dried REALLY quickly and was sooooo difficult to work with.

Any idea what the problem was and how I can avoid it happening with the other walls?

Thanks

Don't use pva, wet the wall down

 

[Deluks]

Over mixing? Warm room? Draughty room?

 

[chriselevate]

Don't use PVA at all?

It's not really warm or draughty. Don't think I over mixed either =(

 

[peaps]

Don't use PVA at all?

It's not really warm or draughty. Don't think I over mixed either =(

Correct, no PVA just water......

 

[jrplastering]

no pva if youve put waterproofer in the mix if you havent your goin to need more than water to hold the suction back.
did you put waterproofer in the sand and cement, if you did and still pvad the walls that should have been hanging for ages

 

[cantaloup63]

Check the date on the bag

 

[peaps]

no pva if youve put waterproofer in the mix if you havent your goin to need more than water to hold the suction back.
did you put waterproofer in the sand and cement, if you did and still pvad the walls that should have been hanging for ages

How do you work that out then? Give s/c walls enough to drink and it won't suck, it's basic.

 

[jrplastering]

yeah ok then just sit there for ages weting down a wall in someones house or just find something else that needs one application and your good to go sand and cement without water proofer needs plenty of water to hold back the suction, or you could just stick a bit of waterproofer in the sand and cement and little dab of water then skim.
diddnt say you was wrong just wetting down sand and cement without waterproofer is too messy takes too long

 

[chriselevate]

Ok.... 2 of the walls has "renderguard" in them and 2 of the walls are a combination of the month old render and skimmed wall from years ago.

What do you suggest for the walls that are mix and match and what about for the rendered walls?

Thanks