What adhesive to attach plastic parts to Estes Interceptor?

Discussion in 'Low Power Rocketry (LPR)' started by Bill S, Aug 28, 2019.

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  1. Aug 28, 2019 #1

    Bill S

    Bill S

    Bill S

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    I'm working on an Estes Interceptor, and wanted to know what adhesive would be best for attaching the plastic pods, fin tip spikes, and rear grooved tailpiece? I know not to use superglue; I had thought to use some JB Weld I have here, and hopefully something weaker on the tailpiece so it could be removed if need be.

    Thoughts?
     
  2. Aug 28, 2019 #2

    mikec

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    I used 5-minute epoxy.
     
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  3. Aug 28, 2019 #3

    neil_w

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    Fin tip spikes are plastic now???

    @hcmbanjo has been recommending Beacon Fabri-tac glue for a while for plastic->paper or plastic->wood joints. I haven't tried it myself. Absent that, I'd probably use epoxy, making sure where possible to scuff up the joint surface on the plastic parts.
     
  4. Aug 28, 2019 #4

    dpower

    dpower

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    I use Medium CA for Estes plastic parts, especially plastic to balsa or cardboard joints.
     
  5. Aug 29, 2019 #5

    prfesser

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    I used 30 min epoxy. Haven't flown it yet.
     
  6. Aug 29, 2019 #6

    mikec

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    You'll want to paint the tailcone before gluing it on, but I've never wanted to remove it thereafter.

    In fact I painted the pods before gluing them on also.
     
  7. Aug 29, 2019 #7

    Bill S

    Bill S

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    Oh I definitely plan to paint the pods and rear assembly before attaching them. I used some putty to fill in the gap between the front of the pods and the balsa fin.
     
  8. Aug 29, 2019 #8

    Daddyisabar

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    I have flown a ton of these things and you just want to use regular Testors red tube glue for the pods and tips. You want the pod or tip to break cleanly at the joint on landing so it is easy to reattach for the next flight. Too strong a bond and you break the plastic part, much harder to repair. So CA is fine. I know not using the strongest and most exotic glues is herasy, but this is a rare case where a weaker bond designed to break is better. The pods break all the time if landing on a hard surface . The tips can at times get caught with the chute. Roughing up the nozzle and tube, letting the Testors melt in for a minute then attaching the nozzle shoulder has worked for me using composite F motors and 30 plus flights. The nozzle doesn't take the abuse the other parts do. I once launched in maximum wind conditions and the fin tip speared the nose cone and pinned the chute. The Testors to balsa bond held!
     
  9. Aug 29, 2019 #9

    Bill S

    Bill S

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    Daddisabear, that's good to hear, thank you.
     

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