Re: [papercreters] Re: HOMASOTE Inc.

I didn't see the 40-50% Aluminum Hydroxide in the MSDS.   And that percentage seems unbelievable.  Maybe somebody dropped a case of their antacid tablets in the mix?

 

We don't know why they are using the copper.   It is not so much a pesticide as an algaecide, but they shouldn't even need that given their rapid dry cycle.   I see no possible reason for adding copper to papercrete.

 

Codes have plenty provisions for fiberboard, of which there are many manufacturers, and since this one has been around for a long long time and has all the needed tests, I doubt there would ever be a problem.

 

Neal

 

----- Original Message -----

From: Ernie Phelps

--- In papercreters@yahoogroups.com, "Robert Merrill"
<robertmerrill1953@...> wrote:
>
> I am forever amazed at the desparity between what I thiunk I know
> and harsh reality. I consider myself an expert (relative) in the
> field of fibrecrete. So I was blown away by a conversation at our new
> town micro-brewery about the oldest and most world reknowned producer
> of papercrete. They have been doing it famously for decades and I had
> never heard of them or seen their product. The company has been using
> sustainability as a manufacturing process goal since befor people
> knew how to spell it! Maybe it is just me and the sheltered life I
> lead. I mean I really thought this wheel needed inventing...........

Don't sell yourself short, what they are making would be alot more
difficult (and costly) to do at home. =) I would not heistate at all to
call them a fiber composite, but I would not call them PC or
fibercrete, since they are kinda missing the "crete" part. Their MSDS
says it is 40-50% Aluminum Hydroxide
(http://en.wikipedia.org/wiki/Aluminium_hydroxide) and has copper
pesticides as well. Not a big deal in my book, some folks worry about
ground water effects of it, but they are using a very sensible amount
(under .1%). Does not look like they use cement, pozzolans, clay, etc
at all.

Very interesting product, though. And it could surely be referenced by
someone who was seeking acceptance into code for similar uses, although
it is different enough to make some inspectors just write it off,
possibly. And certainly we could consider the copper for use in PC as
well, it has a proven track record for them.

- Ernie

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