If you want to come to my shop you can have lots of free poly..... as long as you aren't fussy.
I am always scrapping old manufacturing equipment and have no use for used polycarb.
You got an amphib car?
sorry if i have missed something...
just an fyi, i believe lexan is bulletproof.. Its very tough stuff.
not too bad... 12$ for a panel, maybe attach it to a aluminum bar (thin, 1/8" thin?) and rig up something to your table.
Hope that helps. You could always buy a grizzly one,
or a bigger one
p.s. sorry for thread jack, but for lubricant: The only reason you would want it water-tight is to keep it from getting on you, correct? do you have to clean it off of your machinery after use of the lubricant? it doesn't make sense to me how much lubricant is used but i haven't seen a good way to drain it in a home workshop...
Hope this helps!