Thursday, August 9, 2007

[papercreters] Sealants

Hello -

I am new to this list. Interested in learning more - I have helped
with some papercrete and fiberdobe projects, but yet to begin my own.
I happen to be lucky enough to live in a county with no zoning and no
building codes.

I have a lot of questions and desire to compile collective knowledge,
and have been reading through the archives, but I will begin with this
one:

What experience do people on this list have with sealants?

I have read about:

1. elastomeric and other paints (cost? lifetime?)
2. asphalt emulsion (VOCs? Smell?)
3. some mention online of bentonite (anyone tried this?)
4. some mention online of adding lime to the mix to make it waterproof
(and experiences?)
5. Qual-seal sold at: http://www.fiberfoamconcrete.com/

(is this site
for real?)
6. crystalline waterproofing (same as qual-seal?). from
http://www.livinginpaper.com/construction.htm is now used in
residential applications. It consists of a dry powder compound of
Portland cement, very fine treated silica sand, and proprietary
chemicals. Combining the product with water and applying it to the
surface of concrete results in a catalytic reaction that forms several
inches of non-soluble crystalline fibers within the pores and
capillary tracts of concrete. This seals the concrete against the
penetration of water or liquids from all directions. UGL DryLok is
one of these products. Supposedly this will work in either cured
papercrete or in the wet mix itself. It's pricey, but said to be so
effective that it's possible to make ponds with papercrete. If it will
hold water without leaking, it should prevent water penetration.
(cost? source?)
7. stucco (cost, thickness, etc.???)
8. other ideas?...

I know that many people havent sealed their papercrete projects, but I
would like to see what we can learn from those that have.

I look forward to hearing from everyones experience and ideas.

Thanks!


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