Every now and then when mixing a batch of epoxy and cabosil for structural model building, it doesn't always cure hard as a rock. It ends up kinda rubbery for a few days. I'm using Hanger 9 30- minute epoxy and West Systems Cabosil. Using an accurate postal scale, the normal amount mixed is 3 grams of part A and 3 grams of part B. It gets mixed for 3-4 minutes before adding the Cabosil then mixed for 3 minutes more. Sometimes the mixture cures hard in one hour and sometimes it is still rubbery after 2 days. Only enough Cabosil is added to make the slurry the same consistancy of toothpaste.
Any ideas for the rubbery result? Any suggestions for a more consistant epoxy? Tommy Lamnek RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
