I have tried both and prefer the green, it is harder than blue and purple
and doesn't gum up.
Alan Black

wrote in message
...
McMaster has machinable wax in blue and purple colors, their site doesn't
mention the difference between the two color types, are they different
hardness? I'm gong to be machining a pattern on my Bridgeport mill and I
guess either one would work. Any suggestions? After I get the pattern
done I'm going to use it to make several copies in resin and then use
those
for a Al casting pattern on a match plate.

Thanks

--
Jack Fisher
No clever sig.