waterproofing

[bodymould]

Hi guys, anyone out there know whether or not there is an additve that would waterproof casting plaster??

 

[jaapthedog]

hi ,there you should try using cassinis plaster.
It is for external work.

 

[apart]

hi,what about water glass ? is it possible to get it round London? Cassini is bit overpriced for me so decided to use Herculite no2 +waterproofer

 

[apart]

for internal swimming pool celling

 

[hoppy]

SP101..acrylic based sealer
.from special plasters in birmingham