My uncle and I put some JB weld onto my cousins rim. His friend gave him 3 perfect rims and one was bent since it was hit. We bent it to be straight again but then a gap/crack appeared
Fixed one problem, but made another..
So what did we do we used JB Weld.. it should run you about $4.00..
at your local Home Depot, Walmart, Pepboys, etc..
its sandable and also can take heat like crazy. if you read the package it will tell you some uses people used for it.
but heck JB weld will only fill in that stuff for you and thats about it
read more about them if you wanthttp://www.jbweld.net/
As their motto is.. "Don't scrap it; JB it!"