( epoxy resin help

[cannon monkey]

hey guys it been a while since i been online computer problems and all. i have finished my 2 inch tee piston valve and all i need to do if find a piston i tried wood pvc and hot glue but nothing works as well as i was hoping. this time i want to try epoxy.. or resin ( what ever it is you guys use that pour easy and comes out clear and hard) ( hard enough for a piston ) normal pressures under 120 psi.

so anyways my questions are...
what brand and name of the stuff should i look for ( and a ball park price i might be paying) ( picture of what to look for helps alot)

i need 2 inch pipe about 3.5-4.5 inchs long filled so im thinkin using 1.5 inch pipe to make a hallow piston.. how do i remove the epoxy/resin from the 2 inch pipe after it has dried...wat steps should i take before pouring it

thank you all in advance hopefully i get my computer fixed and can post alot of new pics and videos

[jackssmirkingrevenge]

Plenty of good advice here