Hi. What I have to use to stick carbon fibre to the part (plastic skinning ) car interior parts. Try it to use base coat but looks to me not stick well. Used mix 100:40.  I am beginner in this and try in do my first car interior  parts
Thank you  

Most plastics are pretty difficult for laminating resins to bond to, so there is no real solution. Extremely rough sanding with a 40 or 60 grit paper plus scoring the plastic with a sharp knife will give you the best chance, but there's a good chance the carbon will delaminate and bubble over time, especially with the temperature changes interior components will see.

Not really something I would advise doing, it's just not very reliable.