Hello all, Im new to the forum and new to making composite parts. I have made a couple of splitter vents for a race car of mine and now am working on brake cooling ducts for the front air dam. 

My question is how to lay up the carbon fiber to ensure a reasonable release from the mold. It currently looks like this:




I was thinking I could lay it up (after sanding and smoothing of course), as is, vacuum bag it, and essentially make it as one piece. But as I read a couple of other posts on this forum I started to second guess myself. Any suggestions from the collective?

Thanks in advance!

  

I think I'll use PVA on the first one I make just to ensure everything comes apart. 

As far as how to lay the carbon fabric I was thinking about using 5 different pieces with slight overlap to cover the piece,  like in the picture below. Does anyone see any issues with doing it this way?