carbon preg problem

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#1

hi
i ve one problem with preg
i ve built some pieces in carbon preg and i ve some white spots on carbon when i put it in water do you know does some one can help me ?
process to make them .
i put my carbon preg in a mold i creade the space on my piece
before i pressurise
and before i stoke to 120 degree

i thik i ve told about everything in my process
please help me

#2

prepreg? has the roll fully reached room temperature before you open the plastic seal? I had similar problems when I didn’t, water condensated on the prepreg, put it on the mould, cured, and had white spots…

#3

thanks susho

yes it s prepreg carbon maybe it was not in room temperature i ll be carefull on next time i ll tell you …
do you have an idea to stop using lifting band on my piece to have to beautiful face without sanding and varnish

thanks a lot

sorry for my language

#4

Lifting band? for a good finish, use good moulds with a finish you desire.

#5

hi thanks a lot !!!