Joe;
A piece of exterior 1/4 in. plywood w/o 'glass would be stiffer and much more able to stand up to your leg pressure than a piece of luan (even 1/4 in.)with. Luan is a floor covering and not made for structural purposes.
Charlie

: Sould i glass the 1/8in luan or just coat it with some epoxy? I plan to put
: in a foot pump in the future. thanks for any thoughts or comments.