I am wanting to infuse a 5mm thick PVC foam sandwich and I am asking myself if having the foam grooved on one side only but also with drilled holes will work ok.

Foam down with the grooves against the mould/outer laminate and then a full surface flow medium on the inner skin side which has no grooves, flow medium outside the peel ply.




I hope this makes sense. ??

Anybody else infusing thin foam cores?

I just punch holes with a small flat head screw driver, so probably 2mm dia.