Mortar over Mastic

Mortar over Mastic

PostBy: Richard S. On: Thu Oct 04, 2012 11:17 am

I have small tile project going here and thought there was enough mastic in the bucket but there isn't. I stopped about half way and cleaned it off. Backer is cement board.

Now the question is I have some mortar here and plenty of that but will there be any issues with the mastic residue? Guess I can try and sand it off a little just to make sure.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

Re: Mortar over Mastic

PostBy: steamup On: Thu Oct 04, 2012 1:09 pm

I would go and buy some more mastic. Not that expensive. Mortar isn't waterproof and usually needs a thick bed to work. Not an expert but I know the pain of using the wrong product.
steamup
 
Stoker Coal Boiler: Axeman-Anderson AA-130, Keystoker K-6
Hand Fed Coal Boiler: HS Tarm 502 Wood/Coal/Oil
Coal Size/Type: pea, buck, rice