I used PL Premium Polyurethane in my PML Sudden Rush, which I built with an extended motor tube to accept 4 grain CTI 54mm motors.
PML Sort of warns against using a K load in this kit. It's their Quantum Tube without fiberglassing.
I shot up my Sudden Habanero Rush to slightly over 10K using only PL Premium on the internal fillets. I did use epoxy (Aeropoxy) on the external fillets and in the assembly of the couplers and e-bay.
The K-445 worked nicely, as did all the other J impulse motors. I've flown this rocket 4 times on CTI 54's with great results.
The PL Premium Polyurethane seems to work fine successfully binding quantum tube, G10 fins, and a PML phenolic MT together well.
Think I'll use it some more. Thanks for the suggestion Edward!
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