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Re: Sealing Plexiglas
i use durabuild 50 two part epoxy to seal, coat, protect, cover
everything... in general i am just in favor of using epoxy related materials
----- Original Message -----
From: "Tesla List" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, December 09, 1999 1:13 PM
Subject: Sealing Plexiglas
> Original Poster: Ted Rosenberg <TRosen1-at-Tandy-dot-com>
>
> Robert: I think you probably wore out the Spell Check Dictionary. But it
> seems I have some testing to do. Perhaps plain, old, (really not too old)
> varnish? I'm guess here folks.
>
> Has anyone actually sealed a secondary on Plexiglas with a 'material' that
> worked? if so, what and where and how much (US$ please). My head is
spinning
> more than the winding jig at this point.
>
> Ted
>
> Original Poster: "ROBERT CRESSLER" <59CREROB-at-MENASHA-dot-com>
> <snip>
> I quote form "Plexiglas Handbook" by Rohm & Haas (from 1966 oldie but
> goodie!)
> Plexiglas(acrylic: cell cast) chemical properties
> "In general, Plexiglas is unaffected by most inorganic solutions, mineral
> and
> animal oils, and low concentrations of alcohol. Oxidizing acids affect the
> material only in high concentrations; and it is unaffected by paraffinic
and
> olefinic hydrocarbons,amines,alkymonoalides,and esters containing more
than
> ten carbon atoms.
> Lower esters,aromatic hydrocarbons,phenols,aryl halides,aliphatic acids
and
> alkyl polyhalides usually have a solvent action"
>
> (Whew! tough on spell check) sooo,yes I suspect the solvent in the
> polyurethane will have a solvent action and (probably) cause some type of
> crazing. more so on extruded
> acrylic tube
>
> Robert
>
>
>