Fergus,
I've done a lot of flame-polishing on plexi. Best results are achieved with
a smooth finish, either by routing the edge with a router or sanding the
edge with fine sandpaper. Even better results with a welding torch, as the
oxygen mix produces a bright clear edge and the pass is so fast that the
material won't warp from excess heat.
Fred - So.SF
BADROC
_______________________ Reply Separator ______________________
>Subject: Lexan, (was 280 Z Alloy Wheels??)
>Author: "Ofarrell; Fergus" <Ofarrell.Fergus@hitco.com>
>Date: 11/2/2000 10:27 AM
>
>Ronnie,
>there is a finishing technique when working with plexiglass that may work on
>Lexan.
>Flame-polishing is simply just taking a Home Depot propane torch and passing
>it over the rough cut edge. The warming flash-melts the plexi, making it
>all flow back into the bandsaw cuts, resulting in a really smooth, shiny
>surface. (NO SANDING!!) As your material gets thicker (and more heat
>resistant, which Lexan might/probably be) the timing of how fast/slow you
>pass by is touchy. Try it on the cut off excess first, I'd suggest.
>
>I'll be trying it sometime this winter, as I am thinking of making my
>hardtop rear window a split version, with the bottom half open-able.
>
>Good luck,
>Fergus
>69 2000
>HB,CA
>
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