[alberg30] Fiberglass matt & epoxy

[Gary]

From: "Gary" <veggie at ibx.net>

Your absolutly right, however i think he was talking about covering a rudder
and 1 or 2 layers of cloth and a coat or two over that with epoxy would do
the trick just fine.

Gary

----- Original Message -----
From: George Dinwiddie <gdinwiddie at mail.min.net>
To: <alberg30 at onelist.com>
Sent: Friday, February 18, 2000 10:14 PM
Subject: RE: [alberg30] Fiberglass matt & epoxy


> From: "George Dinwiddie" <gdinwiddie at mail.min.net>
>
> There is matt designed for use with epoxy.  I've seen ordinary
> looking matt in boat stores that said, on the package, that it was
> suitable for epoxy.  Of course, buying glass in plastic packages is
> a very expensive way to buy it.  I've not seen this available in
> bulk.
>
> There's also a product called stitch-mat which is matt sewn to
> glass cloth.
>
> The reason for using matt is that it fills the gaps.  Whether
> you're using polyester or epoxy, the laminate is stronger when it
> has the minimum amount of resin needed to bond it together.  That's
> why the pros all use vacuum-bagging these days.
>
> I use epoxy for small repairs, especially for quick-and-dirty ones
> where I need the adhesive power.  But for bigger jobs, I use
> polyester resin.  It's not only cheaper, but I think it's probably
> easier for an amateur to use.  You can easily vary the cure time,
> for one thing.  Epoxy loses desirable characteristics very fast if
> you do not mix the right ratio.  I was also advised by a very good
> pro that polyester is easier to wet out.  In any event, I figure
> that the polyester used to build the boat has done very well over
> time and I might as well use the same material.
>
> The balsa, on the other hand, has suffered from neglect and
> moisture.  That's why I'm replacing it with klegecell wherever it
> needs replacing.
>
>  - George
>
> P.S.  I just got a notice that Harbor Freight has nitrile gloves on
> sale.  These are the gloves I use for glasswork.  They hold up much
> better than latex and, at 8 cents apiece, I can change them
> whenever they get sticky.
>
> NITRILE GLOVES, EX-LARGE (PACK OF 100) - Low Internet Price $7.99!
> Better than latex for resisting chemical solvents and oils. This
> item's number is:  37052 -2VGA
> http://www.harborfreight.com/cpi/t/h.taf?acct=2001327&c=1
>
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