lets say i just made a carbon fibre mold(a part of cars front wing for example).i would like to know for how long i will be able to use this mold in my car.

and lets say i used another carbon fiber mold(steering wheel) and after a year i realise i cant make any development in this part(so i dont have to make a new mold).will i be able to use it after all this time and offers me the same results?