That Magic PVA glue.
 

I've heard of it being used to waterproof cement. What kind of ratio
should I use. I've used it as thin as milk to seal a porus pot and to
seal a hairline crack in a toilet bowl and that has lasted 24 years so
far.

Chris.

That Magic PVA glue.
 

wrote in message
ups.com...
I've heard of it being used to waterproof cement. What kind of ratio
should I use. I've used it as thin as milk to seal a porus pot and to
seal a hairline crack in a toilet bowl and that has lasted 24 years so
far.

PVA doesn't waterproof cement (I guess you mean mortar or concrete). It's
only a bonding agent. "Waterproof PVA" means it doesn't dissolve in water
as easily as the non-waterproof type, but it's not designed to keep anything
dry. If you want to make a waterproof rendering or screed etc you need a
waterproofing admix, such as FEB or SIKA.