On Tue, 12 Jul 2005 13:13:23 GMT, PaPaPeng wrote:

On Sun, 10 Jul 2005 09:30:51 -0400, "Don Phillipson"
wrote:

What sort of circular saw blade should be used
to cut plexiglas (Lexan) of 1/8 inch thickness?
This is to make fixed windows, screwed flat to
the structure of a shed.


If your material is 1/8", then you need a blade
with at least 16 teeth per inch.
Personally, I use a saber-saw with a hacksaw
blade, and go really slowly. If you need
a clean edge, sandwich the cut with scrap
wood.

At my local borg store, you can get
four different kinds of clear plastic,
ranging from lucite to lexan, with
price about proportional to strength.

Crystal-lite (with the pink backing)
is far less likely to chip, crack,
or spall during cutting than the lucite,
so I only use lucite where I can bury the
edges in putty. Lexan probably won't
chip at all.