Hello there and thank you for your attention
English is not my main language so I apologise if my explanations are not as accurate as it should be.
I did my first mould and infusion since 10 years and it resulted as a disaster. I hope I can find help/solution and my experience could help other people.

I did the mould of a little tray with green tooling epoxy gelcoat and epoxy moulding paste on a glass. I used filling wax to fill the gap between the edges and the glass as you can see below:

So I did the mould, did my first infusion and had this as a result:


I forgot to take a picture but I had a looooot of bubbles  visibles behind the vacuum bag.
I did the infusion as this: [ -- Dry Reinforcement -- ] / Peel Ply / R100-MP22 Perforated Release Film / FM105 EasyFlow Infusion Mesh / Vacuum Bagging Film
I can see too there is a difference of thickness 



Perhaps I'm wrong but I think the problem comes from me doing too sharpen angles with the wax. I think it results with air traps.


What do you think guys? Am I right? Don't hesitate if you have any other clue to solve my problem, I wouldn't want to influence you

If yes, I was thinking about putting back in place the original tray (to protect the mould) and sand the gel coat where there was wax to flat this and to have this sharpen angles rounded.
I think it's possible to had the same gelcoat if I go too far or if I need to had a gap filled, can you please confirm?

Thank you mates, I have my other mould (unimould) done with the same way so I don't dare to do the infusion if it's for the same result

Definitely looks like a lot of bridging on that edge which has caused all the voiding issue you have.

As you suggested, its probably in part due to the rounded edge with the wax. 

You could round it a bit on those edges to reduce the bend radius which would help.

If you remade the mould, I would cut a recess into the baseboard so the tray edge can sit flush much closer to the baseboard so the area filled with wax is much smaller and much flatter. 

A simple fix that may work is using some snips, cut a relief cut into the corner of the carbon as you lay it so the fabric is not so taught on the edges.  Cut just shy of the finished parts edge line so nothing shows up on the finished part.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant