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foam piston?

Posted: Tue Sep 02, 2008 2:19 pm
by SilentCyan
would it be possible to construct a piston entirely out of closed cell foam? has anyone tried this out before and if so did it work out okay?

Posted: Tue Sep 02, 2008 2:58 pm
by Biopyro
Closed cell foam would be crushed because the air bubbles inside would have a lower pressure than the chamber.

Posted: Tue Sep 02, 2008 3:22 pm
by ALIHISGREAT
has used foam on the inside of one of his pistons (i think) then casted epoxy around it (well as it invloves epoxy he probably has :D )