Thanks for your answer.
Application: consumer products plastic case, in particular electronic musical instruments
Finishing: the plastic parts must be painted
Temperature: our standard for the packaged product goes from -30 C to +60 C..I need to check in detail humidity and how many temperature...
As in the subject, I'm looking for a low density polymers to reduce the weight of injected plastic parts, by keeping mechanical properties as much as possible.
I tried carbon fiber application, but it is too expensive.
I actually adopt common polymers like ABS and PS.
Thanks in advance