[Greenbuilding] Big Green: Fw: Green Seal and "Green" Paint (and
stains)
JOHN SALMEN
terrain at shaw.ca
Thu May 29 18:28:19 EDT 2008
I couldn't agree more. A lot of 'green' formulations are new chemistry, i.e
ingredients that are either new in formulation or in combination and there
is a potential of them being worse than the materials they are designed to
replace. I've gone from an MSDS to researching the individual components
(that are required to be listed) and end up with big concerns. I remember
researching an ingredient used as a drying agent in an environmentally
popular non voc water based floor finish - identified elsewhere as being
related to miscarriage. Is this something I'm supposed to recommend to a
pregnant person as a suitable alternative.
Realistically there is no material that is environmentally durable that is
environmentally friendly. That is your basic contradiction in terms - and
the label 'environmentally friendly material' is truly an oxymoron. If a
material is going to resist rapid environmental deterioration (part of the
definition of a 'material') then it is going to resist the environment to
all its worth. Our valuation of a material should consist of determining
what the worth/cost/risk is comparatively and communicate that information.
I've been doing this a while now and increasingly go to materials that have
historical usage and some contemporary acceptability. For example floor
finish. In north America in 150 years or so we have gone from swept sand on
bare wood to wanting a 'sheen' and 'protection'.
Currently for 'green' products we have water based non voc polyurethane
finishes, 'inert' epoxy type finishes, various water or 'citrus' based oil
type finishes. Typically a poly or epoxy based formulation was considered
'inert' (outgassing) upon cure (7 days or so). Now we are seeing research
that indicates that that cure is not necessarily stable and that curing
agents continue to emit influence indefinitely depending on the formulation.
This is potentially very toxic stuff even in minute quantities. So I
started looking at more traditional oil finishes using a more friendly
citrus thinner. Turns out that 'citrus' as a thinner is highly sensitizing
as a turpene - much more so than a standard tree turpentine. So eventually I
settled on a raw tung oil finish using pure turpentine as an 'acceptable'
toxic finish for floors, meaning that the known toxicity has historical
basis and known consequence and I can identify the type of protection needed
and the application and durability are 'acceptable'. There are other
'european' balsam oil/water formulations that seem like they might be quite
acceptable but not with the same degree of protection and 'sheen' (Europeans
are much more acceptable of dull finishes and marred floors).
I could go on forever about materials and their usages, but you get the
point.
JOHN SALMEN ENVIRONMENTAL DESIGN
4465 UPHILL RD,. DUNCAN, B.C. CANADA, V9L 6M7
PH 250 748 7672 FAX 250 748 7612 CELL 250 246 8541
terrain at shaw.ca
-----Original Message-----
From: greenbuilding-bounces at listserv.repp.org
[mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Andrew Pace,
CSI
Sent: May 29, 2008 7:58 AM
To: Lance Fletcher; greenbuilding at listserv.repp.org;
biggreen at lists.biggreen.org
Cc: Sierra Fletcher
Subject: Re: [Greenbuilding] Big Green: Fw: Green Seal and "Green" Paint
(and stains)
While I agree that there are great benefits to promoting recycled paints, I
am curious to know why the subject of whether or not a paint is considered
Œgreen¹ always has to start and stop with the VOC content. There are
literally dozens of other ingredients in latex paint that are just as, or
even more harmful to humans than propylene or ethylene glycol (the typical
VOC¹s in water based paint). Ammonia, butyl acetate, silica, formaldehyde
donors, biocides and many more HAP¹s that are either not classified or are
exempt from the EPA regulations. VOC¹s are not regulated because of their
direct effect on humans. They are specifically regulated because of the
possibility that they could create outdoor air pollution. So, shouldn¹t we
be MORE concerned about human health?
Andrew Pace
Http://www.degreeofgreen.com
On 5/29/08 9:19 AM, "Lance Fletcher" <lfletcher at rcn.com> wrote:
> For anyone interested in recycled paints, here is an excerpt from a paint
> listserv maintained by the Product Stewardship Instititute (see below for
> contacts).
>
> ----- Original Message -----
> From: Sierra Fletcher <mailto:sierra at productstewardship.us>
> To: lfletcher at rcn.com
> Sent: Thursday, May 22, 2008 3:59 PM
> Subject: FW: Green Seal and "Green" Paint (and stains)
>
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