Re: [RCSE] Epoxy-Cabosil Advice
Same here. In my case though it may be because the epoxy was over the hill (old). But I do think the cabosil/aerosil stuff exacerbated its impotence. Regis --- In [EMAIL PROTECTED], "Tommy" <[EMAIL PROTECTED]> wrote: > 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. 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.
Re: [RCSE] Epoxy-Cabosil Advice
Is the epoxy supposed to be 50-50 mix by weight,. or by volume? Makes a difference. .bc([EMAIL PROTECTED] http://www.widomaker.com/~conk Williamsburg, VA 23185 On Fri, 30 Apr 2004, Tommy wrote: > 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. > 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.
RE: [RCSE] Epoxy-Cabosil Advice
You have to use a quality epoxy to get consistent results. Cheap hobby epoxies have lots of volume filler added to make the mix ratio 1:1. Use West Systems, Fiberlay Pro-glas, or another 4:1 or 5:1 resin/hardener system. John Endless Mountain Models http://www.scalesoaring.com email: [EMAIL PROTECTED] -Original Message- From: Tommy [mailto:[EMAIL PROTECTED] Sent: Friday, April 30, 2004 9:51 AM To: [EMAIL PROTECTED] Subject: [RCSE] Epoxy-Cabosil Advice 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. 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.
[RCSE] Epoxy-Cabosil Advice
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.
