Replying to making aluminum slippery?

Is there any way to make aluminum slippery? cuz i have this seating top thing that i took from my school that would be awesome for a backyard rail. It's 38 ft. long and 10' wide. The only problem is that it's aluminum and i tried it and it was so damn sticky! Is there ANY way to make something aluminum pretty slippery?
-------------------
-I don't trust anything that bleeds for 7 days and doesn't die

HIGH NORTH SESSION 2!