Modding plastic filler ?

Hi everyone .
Does anyone know if you can get plastic filler and if so any recommendations ?
I'm modding an old case i salvaged from a friend and the front panel is going to need some work , filling and re-shaping .

 

car filler , fibreglass ect ect loads. nip down your local car parts store and ask ...

Just look through the project logs and youll find loads of different methods.

 

I've got some car filler , just didn't know if it would adhere to the plastic .
Cheers Mayhem

 

I'd sand first (for better adhesion) since your going to be filling it in anyways