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Date: | Fri, 5 May 2006 07:48:18 -0500 |
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>Does this mean we can
> choose the coatings, or does it mean you (or your other friends with
> the Mr. Wizard chemistry sets) can custom tailor them for us?
Ideally, you could get permeability performance data from the respective
manufacturers product data sheets, but then the stated difference from one
manufacturer's product to the next may have more to do with test methods and
reproducibility than actual differences in product permeability.
SWR is on the right track with a unified testing program using one lab, but
only a handful of products have been tested and validated so far. Within a
single manufacturer's product line, it can be useful to compare permeability
of various products, because the data may at least reflect some order of
relative permeability.
Paint formulation is complicated, and I don't think it is feasible to custom-
match permeabilities in the same matter-of-fact manner that we tint custom
colors. But a diverse product line should include products with varying levels
of permeability (along with a bunch of other important properties), and this
should provide some options in fitting the product to the needs of the
particular project.
>>Mike, sometimes it isn't easy
>> to tell what your personal views are, in comparison to your
>> professional opinions.
>
Are those necessarily mutually exclusive categories? Shouldn't the same values
apply? If you're about seeking truth technically and professionally, aren't
you likely to be personally disgusted by transparent efforts to distort the
truth for personal gain?
Mike E.
--
To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://listserv.icors.org/archives/bullamanka-pinheads.html>
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