I'm going to get my first speed cube in the mail today, so i went down and bought CRC heavy duty silicone spray because it's one of the most recommended lubes on youtube. It looks exactly the same as i see in all the videos, so i didnt read anything. But when i got home i read on the back in huge caps "DO NOT USE ON PLASTICS." Did i get the wrong stuff? is there more than one kind of CRC heavy duty silicone spray? Has anyone else had a can that said the same thing but it still worked? Should i not use it? I don't want to ruin my new cube.