I would think that any of the stronger, low-polarity solvents would do just
fine. I'd probably use Dichloromethane (AKA Methylene Chloride or DCM).
What you'll be doing is exactly the same thing you do when you use PVC glue
(which actually dissolves the PCV and 'welds' the pipes together). Google
"Solvent Welding" to get a better idea.
Handling is sort of tricky, but DCM isn't _that_ dangerous at the quantity
you'd be handling. Nitrile gloves are what is typically recommended, but
DCM will dissolve them pretty rapidly, so you really want to wear the gloves
but still be careful not to have any direct contact with the solvent. To do
that, just work with Q-tips or syringes of solvent and use very little at a
time at a finger's length away. Also, work someplace that has good
ventilation.
Polycarbonates solder pretty well, so that's another option. An electric
plastic welder (or a cheap soldering iron, in a pinch) can melt it back
together.
Good Luck,
-Paul P.
-----Original Message-----
From: shop-talk-bounces at autox.team.net
[mailto:shop-talk-bounces at autox.team.net] On Behalf Of Matt Trebelhorn
Sent: Friday, May 27, 2011 11:35 AM
To: shoptalk
Subject: [Shop-talk] Repair for polycarbonate suitcase
I have a polycarbonate suitcase with a small crack -- a little over
an inch long, running from one of the feet to the edge of the piece.
The manufacturer sent us a new one when I sent in a photo of the
crack on a warrantee claim.
Now, if I fix this crack, I'll have two nice suitcases.
So, any suggestions as to how to fix a polycarbonate suitcase?
I've read something about a really heavy-duty solvent that will melt
the material and fuse it back together... if that's the best way to
go, then suggestions on acquisition, use and handling, and disposal
of the solvent would be helpful. If there's something else I should
try, let me know what that might be.
Shop content? Well, my wife stickered up the suitcase with stickers
we got at vendor booths at vintage races at Monza. Not shop related,
exactly, but it's the best I could do.
TIA
Matt
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