Tim W wrote:
"The Davenport's" wrote in message
...
So...I need to make a cross cut sled and I have made them in the
past
using tempered hardboard that was smooth on both sides...I'm having
a very hard time finding that stock now, altho I can find plenty of
1/4" MDF. SO...for a sled, will MDF work out all right or should I
keep looking for the tempered hardboard?


If it was smooth on both sides it was MDF. The manufacturing process
is quite different but the end product is not. The 'tempering' I
think refers to the inclusion of oils in the hardboard recipe.

The end product is quite different as well. Tempered hardboard is
suitable for exterior use. While it's relatively hard to come by
these days, S2S hardboard was fairly commonplace when I was younger
and you can still get it if you look for it--one source that ships
anywhere in the US is Boulter Plywood http://www.boulterplywood.com/
who carries the "Duron" brand.


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--John
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(was jclarke at eye bee em dot net)