Talk Composites - The Forum for Advanced Composites

My resin mixture reached 140 degrees F in 30min?

http://www.talkcomposites.com/Topic30615.aspx

By hunter08 - 10/8/2018 4:27:51 AM

Can resin overheat? I used a different brand of casting epoxy to try to make a live-edge table. I stirred the hardener/epoxy thoroughly and then made a pour. I carefully laid the wood down. I left the room and came back about 30min later to just to see the table was a little strange. I got closer and could feel the heat coming off the surface. It was too hot to touch. After a few minutes of wondering what happened, I got a food thermometer to find that it was about 60 degrees C! How is this possible? Within an hour it was almost completely solid. Like a science experiment gone bad. Can this happen with any epoxy?
By Hanaldo - 10/8/2018 11:28:41 AM

60C isn't even bad. I've had thermal runaways as high as 170C. Definitely watch your mass volumes!