Yes the fellow from the center for research and innovation said the same thing to us.
Clair
In papercreters@yahoogroups.com, "Janoahsh" <janoahsh@...> wrote:
>
> A couple things to keep in mind, Water Proof is a relative term in as much
> as water proof doesn't mean Vapor Proof and a vapor seal can be broken or
> incomplete. Vapor barriers can sometimes trap moisture and cause many of
> the problems they are supposed to prevent.
> Latex and Acrylic can be helpful for shedding water as well as allowing
> trapped moisture to breathe through it, or allow it to escape. This helps
> prevent peeling paint as the water breaths out rather than forcing the paint
> off an outside wall as happens with many Alkyd or oil enamels.
> Some tests have shown that acrylic additives can improve tensile strength in
> some high density mortars, but reduce compressive strength.
> Papercrete means different things to different people, and characteristics
> change as the components vary. What works for one may be impossible for
> another due to inconsistency in materials, application, humidity,
> temperatures, etc.
>
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> 07:12:00
>
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