Re: [papercreters] Breathable paint for papercrete

My advice would be to wait.   Anything you paint on the wall will retard evaporation, which increases the chances for mold.   Rolling the dice with mold is not something that anyone should do.   Think of what it would cost to remedy a mold problem?  Are you knowledgeable about whether water vapor can escape through the shrink wrap?   

As for Drylok, unless you are planning on stopping a wall of water up to 20 feet high, it may be overkill.   There are dozens of breathable paints on the market.   Just google it.   One example is called "Silicate Dispersion Paint".

Neal

----- Original Message -----
From: "Brandon Hoult" <bhoult@gmail.com>
To: papercreters@yahoogroups.com
Sent: Tuesday, May 3, 2011 2:51:14 PM
Subject: [papercreters] Breathable paint for papercrete

 

I am building a geodesic dome covered with plastic shrink wrap that I then sprayed a few inches of papercrete on both inside and out. The project is documented at http://minimalintentions.com. I am at the stage where the inside is still quite damp and I need to paint so I can put in a floor and desk. The best solution I have found is UGL Drylok which can be stained and apparently allows water vapor to still escape. My concern is that it will not allow water to escape fast enough and I may end up with rotting / mildew inside the papercrete.

I can wait if necessary, but am impatient to get this done. So my question is are there any other interior paints that can be stained that are breathable? Is Drylok the best solution? And any advice on how dry the interior needs to be before I can paint.

Thanks...
Brandon.

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