Talk Composites - The Forum for Advanced Composites

Resin infusion problem!!

http://www.talkcomposites.com/Topic17129.aspx

By Ahmedgehad - 5/17/2015 4:16:27 PM

Hello,

I have recently made a couple of flat sandwich structure panels by resin infusion and after leaving it to set for three days I found that some of the panels' carbon fibre layers were still wet with epoxy and havent set yet. I have laid them out hoping they dry and set properly. I suspect its my fault since I may have used more resin than I needed. I would like to know whether the wet parts will eventually set and dry or not and if they do will it significantly affect the overall properties of the structure? Also, are there any troubleshooting methods I can take since I might not have enough time to make new parts before my project deadline?

Thank you
By Warren (Staff) - 5/19/2015 10:25:12 AM

The resin would go runny when excessively heated as it is normal for the viscosity to reduce with temperature. A moderate heat of upto 60C for say 6-8 hours should be all that is needed in this case. If it hasn't cured after that then it is unlikely to.