Talk Composites - The Forum for Advanced Composites

GC50 delaminated

http://www.talkcomposites.com/Topic21591.aspx

By fjm9898 - 7/9/2016 12:56:38 AM

I am not a happy camper today. I spent a bunch of money to have GC50 sent to the US because its the only thing that will work according to Easy Composites.

I followed every direction perfectly and soon as i cut the part, it start to chip up immediately.

I got the mixing portions right, i bought a spray gun. Laid it on a bit thinker, maybe 0.5mil or 0.6 mill, but should not of been a problem since some people brush it on heavier.
i let it stand for about 10 hours, well after the 2-3 cure time and well within the 24hour max out period. i did resin in fusion. i let the resin and the gc50 cure for 3 days. first cut, darn near instantly started to chip up and de-laminate. i used a cutoff wheel and actually moved downt eh part slow and moved fast to see if it was heat or speed, still happened no matter what.

i am at a loss guys. this product was supposed to be aon a show car tomorrow and i completely blew it because of this issue. i really dont understand.

here are a few pictures.
https://scontent.fsnc1-1.fna.fbcdn.net/v/t1.0-9/13627054_10101758362734040_2155620982675042648_n.jpg?oh=ee4c3a0ec1c0f9e76f3e73dccbae2850&oe=57F1354E
https://scontent.fsnc1-1.fna.fbcdn.net/v/t1.0-9/13606973_10101758362758990_8829558832918393004_n.jpg?oh=645c71b97dcbe46f8445be615baccc41&oe=582BB6F1
By Matt (Staff) - 7/14/2016 4:36:25 PM

Yes, thanks Frank, that sounds like a great way to go; it's all about finding what we can rule out and then seeing what's left at the end. Warren and I will monitor this thread and respond once you've had a chance to do some tests with a different epoxy.

Kind regards, Matt