Need plastic end cap for 1.5" x 0.5" aluminum

[exalted512]

Pretty much need what the title says. I'm making buss bars to connect 3 batteries together and the aluminum im using is 1.5"x0.5" and I need a plastic end cap, or rubber, or anything non-conductive thatll fit on the end of that. I've been looking everywhere for them but cant find crap.

Just wondering if anyone has any ideas of where to get one or who might sell em.

Thanks!
-Cody

[phoneisbusy]

There's stuff that you paint on tools to form a rubber grip. There's also an electronic equivalent to the goop.

Just suggestions of the top of my head. Good luck.

Dave