does anyone know anything about different types of plastic?
I am building a small compressed air engine, (3/8" dia pistons). I am looking for a plastic that will be cheap, smooth, and easy to manipulate, but not flimsy at all. It will not have very much stress from torque, tension, or compression. It will have a little pressure inside. I will use this plastic for the cylinders, pistons, and some valves.
I am going to buy my plastic from www.mcmastercarr.com
I am thinking PETE, UHMW, or PVC. Does anyone have any particular suggestions? feel free to ask for more details.