From: Patrick Pierquet <ppierquet@teltech.com>
To: "'baidarka@lists.intelenet.net'" <baidarka@lists.intelenet.net>
Subject: RE: [baidarka] "Monster" coating for skin boats?
Date: Mon, 27 Jul 1998 15:27:21 -0500
I don't remember the cost exactly; it was a bit more expensive than
their "regular" 2-part urethanes, which sell for about $25 for a
one-quart kit, about $70 for a 1-gallon kit(I have an older price list).
"Toxicity" is relative....after reading the supplied MSDS sheet, I would
use a face mask that has carbon filter cartridges IF I were working
inside. Since I did my first experiment OUTSIDE, I simply aimed a fan
at my work, and stayed upwind...no fumes, no problems, and so far as I
can tell I'm still normal.(As an aside, even though I've already
purchased a gallon of Hypalon, I think I'll use this stuff on the keel
rubstrip.)
- Patrick
> -----Original Message-----
> From: Craig O'Donnell [SMTP:dadadata@friend.ly.net]
> Sent: Monday, July 27, 1998 2:00 PM
> To: baidarka@lists.intelenet.net
> Subject: Re: [baidarka] "Monster" coating for skin boats?
>
>
> Ah. What cost the quart ket, and how toxic is this stuff?
>
> >described as "extra tough, abrasion resistant" urethane elastomers,
> and
> >they were originally developed for severe applications such as valves
> >and seals, wear pads, heavy duty hose coverings etc. There's one
> >product called "NF 1500-SP", that is formulated specifically to bond
> >with nylon. Here are its stats, compared to Gaco Hypalon:
> >
> > Strength(psi) Hardness(Shore A) Elongation
> >
> >Hypalon 700 psi 78 to 83
> 350%
> >
> >NF1500-SP 6,000 psi 88 560%
> >
> >Some pretty impressive statistics. One drawback I see is that the
> >urethane products are 2-part, and once you mix the two parts, you
> gotta
> >use all of it, and use it fast.(Sort of like using epoxies, I guess)
> I
> >ordered a quart kit of this material, and applied it to samples of
> >4-ounce heatshrink Dacron, and Dyson's 8-ounce nylon.
>
>
> Craig O'Donnell
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