Hi guys,
Lexan is pretty incredible stuff. I bought my first pair of safety glasses
made from the stuff around 1980. You can take the biggest hammer in your
collection, take the biggest swing you can muster, and the stuff will not
break. It may craze or show some surface damage but unlike acrylics
(Plexiglas) this stuff is extremely impact resistant. Bend it around a 90
degree angle and it wont crack. It will scratch and anti-scratch grades
are available but very pricey. Like Bob says Pledge works well and so
does Flitz (works on just about any plastic) for filling scratches.
One word of caution. I considered using Lexan (generic term is
Polycarbonate) for my Sweeps gauges when they were in early development,
about 10 years ago. I really wanted to use ¼ polycarbonate but none of the
laser cutters would touch the stuff. One of the byproducts of laser cutting
polycarbonates is hydrochloric acid. It eats the guts out of the lasers.
Another byproduct (not sure if true or urban legend) is phosgene gas, nasty
stuff if youre old enough to remember WWI !
Anyway, I wouldnt use anything but polycarbonate as edge guarding on my
layout. Its great stuff. Cost is about double that of acrylics but worth
every penny.
Lee Kleidon
Track Tools, LLC
Westminster, CO
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