Thanks- me too! I mixed up some 30 minute epoxy and poured it in to get a good joint on the upper centering ring and left it overnight. If I went by the instructions I would just have made fillets on the tube/ring joints when adding the internal fillets.
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For inspiration......
Just wanted to mention that I used PC-11 on my Perigrine for the internal thru the wall reinforcement and it worked just fine. No one is going to see this slop, so it doesn’t matter. I weigh out the PC-11 to get the right mix. My Rocketpoxy expired two months ago and I’m waiting on Apogee as well.Any advice on a substitute for "rocketpoxy"?
Apogee Rocket "rocketpoxy" has been out of stock, so I assumed I should try to find an epoxy substitute that had a thicker consistency,... ended up using PC-11 putty epoxy (https://www.amazon.com/Protective-Coating-Putty-PC-11-160114/dp/B00869HJDS). It's thicker than I was expecting.
I did the inside of the motor area with PC-11 and glued the back motor ring on. The thick consistency was a pain to measure and work with. Thicker than latex caulk and did not dry smooth. Looks terrible. Surely is strong enough?
I like your use of the HobbyLink "liquid" epoxy for the forward centering ring. I'll plan to use a similar liquid epoxy when I do the front side of the forward centering ring. Wonder if I should drill into the back centering ring mount and see if I can flow some liquid epoxy in to get the rear side of the forward centering ring?
What to use for the fin fillets instead of "rocketpoxy"? The PC-11 might work if I smooth it. Anything else?
Thanks.
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