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Re: NFC: Sealing Acrylic/Cyanocrylate

One thing to clear up:

The cyanocrylate 'super glues' are stable in water.
They are used for hasty stitching INTERNALLY by combat
medics now. I have used them myself for gashes etc
that would otherwise have needed a stitch job. Squeeze
it together and apply a bead of 'super glue', hold for
30 seconds and release. It holds, is nontoxic, and
stable.
I have tubes of it in both my first aid kits.

I have probably also used several hundred large tubes
of it to make coral cuttings on literally thousands of
corals in culture. It holds very well under water when
bonding either soft corals to rocks or stony corals to
mounts of rock . Again, entirely stable.It is a staple
for this in coral culture now.(no pun intended on
rereading) It comes in clear liquid and gel both.Read
the labels.

It ISNOT what I would use to bond acrylic as there are
better compounds made for that already talked about
here.
jake

--- Wright Huntley <huntley1 at home_com> wrote:
> Sajjad Lateef wrote:
> > 
> >         I thought that cyanoacrylate based glues
> were used to bond
> > acrylic. Super-glue/Krazy-glue are cyanoacrylate
> compounds. Have you found
> > these to by runny, Wright? I have not used them
> for large projects (only
> > small fix-up jobs).
> 
> The traditional acrylic glues are solvents that
> cause the two pieces to
> truly melt together, in a weld-like joint.
> 
> Many (most?) of the cyanoacrylates are not too good
> in contact with water.
> Some, like the old Eastman 910 just turn to powder
> and go away, even just in
> high humidity. Because *any* acrylic is slightly
> water permeable, I do not
> tend to trust them for any use in my aquaria. YMMV.
> 
> They also tend to evolve some fairly nasty stuff
> that coats the local
> surfaces white, and may not be too good for the
> fish. Good for showing up
> fingerprints, but not useful for nice appearance.
> 
> Wright
> 
> -- 
> Wright Huntley, Fremont CA, USA, 510 494-8679 
> huntleyone at home dot com
> 
>                 Important things we should remember:
>       [and weren't taught in mandatory government
> propaganda camps]
> 
>        The Declaration of Independence was written
> on hemp paper.
> 
>                 *** http://www.libertarian.org/ ***


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