Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hi all,

The welding process was discussed before but i am unsure about plastic
to buy. I was to buy PVC sheets and weld, is common and suitable but
expensive. I even made myself speed welding nozzles. I always thought PE
or PP was more expensive than PVC but actually they are less than half
the price by square meter, being PE the cheaper. But i never had either
those sheets side by side to test their hardness.

PE is most suitable to chemicals, lighter and stronger than PVC it only
as a lower melting temperature but is way superior than the maximum
needed temperature. The problem is where i am to buy it, they only stock
PVC and PP weld. PE weld needs to be paid and wait for deliver which i
find silly, and the minimum order is 5 times more than i need...

I am to buy 5mm HDPE sheets they are a good deal, but PP is almost the
same price and easier to get the weld. Any advice?

BTW anyone in Europe with excess or need of PE weld?

Simão