Thread: Carbon fibre/epoxy gurus help please

Has it been exposed to elevated temp like in the ca in summer or even outside under the sun? standard epoxy have a transition glass temperature arround 60-70deg which is the temp at which the epoxy get soft. I had hydrofoil wrapping and surface defect appearing while stored in the car in summer. Check the datasheet of the epoxy you used and look what’s the TG (transition glass temp). If you do a tapping test with a 6mm bolt (just tape it slightly, don’t hammer it) on the laminate does it sound different than on the carbon that is undamaged?

Originally Posted by tibo

Has it been exposed to elevated temp like in the ca in summer or even outside under the sun? standard epoxy have a transition glass temperature arround 60-70deg which is the temp at which the epoxy get soft. I had hydrofoil wrapping and surface defect appearing while stored in the car in summer. Check the datasheet of the epoxy you used and look what’s the TG (transition glass temp). If you do a tapping test with a 6mm bolt (just tape it slightly, don’t hammer it) on the laminate does it sound different than on the carbon that is undamaged?

Hmm I’ll have a try tomorrow and see how it sounds. The o lay time this has been in the sun is when I have carried it. It’s my wallaby gun and I don’t spend much time sitting and glassing, just walking and shooting

It has only been in the safe or transported to a block in the car. Never left in there. It does look like it has heated up though