Replying to Question about making a rail

ok so we found this sick piece of metal thats like 30 feet long and 4inches wide that i want to make into a flatbar. we were bored so we just layed it down in the yard and gave it a little test but for some reason the thing does not slide its sooo damn sticky and slow, even hitting it super fast. it seems to sratch easier and i can feel the drag on my urban skis' messed up edges. is there anything i can do to it to make it faster? i cant think of anyhting but i thought id give it a try to see if someone knew anyhting. i think the metal must be aluminium or something cause theres no way steel would scratch up that bad and be slow. let me know thanks guys