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Posted by JohnR66 on August 27, 2006, 9:44 pm
> There was a thread on cutting Plexiglass. But how can I make a clear
> joint with no voids, bubbles or inclusions? Methyl dichloride is the
> solvent of choice but it is too running. There are thicker glues
> available but they seem to ooze out and make tiny bubbles. I'm looking
> for "museum quality" joints on boxes that can get fairly large and hard to
> handle. TIA.
If you can't get good joints with methylene chloride solvent cement, you
aren't doing it right. It is the choice of fabricators. Gluing acrylic right
isn't easy, doing it well is an art form. It takes the proper tools and lots
of practice and good procedures.
There is a two part cement that is used for building aquariums and weather
resistant enclosures. It will also yield high clarity joints. It is un
polymerized PMMA (essentially liquid Plexiglas) and a catalyst. Mixing the
right amount of catalyst with the MMA will start the liquid acrylic to
polymerize. You have a limited time to work as it hardens in minutes. It
requires advanced techniques and skill. The cement is very expensive and
thus not commonly used.
Plaskolite.com and cyro.com has fabrication guides and good instruction on
cementing acrylic. Read up and practice!
John
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