hello
i have a problem i am doing some carbon fiber hand wet lay up but i allways get small airbubbles between mold and carbon fiber.i cant get rid of it 
can some one hellp me pls
There are a few causes but they’ve been discussed many times. Do a quick search for air bubbles
http://compositescentral.net/search.php?searchid=17833
It also depends on your manufacturing process, infusion vs vacuum bagging but I’m assuming by wet layup you mean vacuum bagging.
Biggest beginner mistake though is putting the carbon fiber down first then forcing resin through. Put the resin down first and let it push up through the fabric.