Hi,
Im building a model boat,im going to use pre peg carbon and aramid honey comb ,I want to reinforce some areas using Kevlar but theres no pre peg Kevlar only fabric,
how can i do this,is it possible?

Without the availability of a co-curable aramid based pre-preg, you would need to laminate the aramid as a separate stage. Once the pre-preg has cured, if you haven't peel ply'd the bonding area, give it a good key with 120 grit paper then wet lay laminate the kevlar into place.  I would recommend choosing a resin suitable for your intended service temperature and then carry out a full post cure on it before moving on to the assembly of the sandwich panel. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

If the kevlar is the very light 60g dry fabric (without resin) then this would be light enough to just place against the a layer of pre preg carbon and there is very likely enough resin there to wet that out too.