Airtightness - Parge Coat vs Airtight Paint

[Chanmenie]

7 hours ago, nod said:

You will be fine 

The lads that work for me Will often mix 20 bags without washing out If you wash the tub after each mix it will give you plenty of time Add a T spoon of Cream of Tata which will give you double the time to use it (30 mins )

Thanks @nod good tip.

I can plaster but being a part timer I’m not that quick, but I reckon I’ll speed up after the first couple of bags ?.

Will have about 135 m2 plus 2 gable ends to do so I guess that’s over 30 bags @ 5m2 per bag 

[nod]

2 hours ago, Chanmenie said:

Thanks @nod good tip.

I can plaster but being a part timer I’m not that quick, but I reckon I’ll speed up after the first couple of bags ?.

Will have about 135 m2 plus 2 gable ends to do so I guess that’s over 30 bags @ 5m2 per bag 

Normally get a bit more 6.5 m2 per bag 

Just take your time and keep washing your tub out 

[SimonD]

11 hours ago, nod said:

Add a T spoon of Cream of Tata which will give you double the time to use it (30 mins )

 

Brilliant. I'm always amazed when I see stuff like this and have to ask, who on earth found this out and how? ?

[nod]

8 minutes ago, SimonD said:

 

Brilliant. I'm always amazed when I see stuff like this and have to ask, who on earth found this out and how? ?

We’ve been using it multi finish for over 30 years 

[Gus Potter]

Nod.. see when you are sticking on the external corner beads for rough cast do you mix in a bit of old gypsum plaster to flash set the dabs on the beads?

Edited February 26, 2022 by Gus Potter

[saveasteading]

Cream of tartar in plaster is mentioned in Wikipedia, where it says any acid will slow hardening.

[Johnny Jekyll]

On 26/02/2022 at 08:20, JohnMo said:

Is that a photo after or before applying?  Looks like before.

 

I would apply it with a soft natural bristle brush, (12 to 14 inch) with the right mix there should be nothing to brush off.

The middle three blocks around the steel are done so far in this photo.