Talk Composites - The Forum for Advanced Composites

infusing thin sheet foam sandwich ?

http://www.talkcomposites.com/Topic17262.aspx

By Fasta - 5/21/2015 9:41:35 AM

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?
By Hanaldo - 3/5/2016 8:56:46 AM

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

Print through is a problem though, I do get print from the holes. It's just the shrinkage of the excess resin, so anywhere you have a build up of resin compared to its surroundings you will see it, doesn't matter how big it is. 

Post-curing is the best solution.