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#1
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Favorite Adhesive
So, what's everyone's favorite type of glue to use when assembling rockets. My favorite was and always will be the yellow Ambroid Liquid Cement in the white and orange tube. Sometimes it's kinda hard to find so I stock up when I see it on the shelf. Anybody else use this?
Steve |
#2
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I have heard of but have never used yellow Ambroid.
I suppose my go-to adhesive is yellow carpenter's glue of various brands. Sometimes Elmer's white glue, when yellow glue's tendency to shrink would cause problems. 20 minute epoxy for high power stuff.
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NAR #27085 - Oregon Rocketry - SAM |
#3
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I haven't seen Ambroid in around 30 years. It was great stuff. I'm now partial to CA, epoxy, carpenter's glue, and occasionally, Gorilla Glue.
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Friends Don't let Friends Do TRF |
#4
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For LPR I mostly use white and yellow carpenter's glue. I use CA, epoxy, contact cement, the modern equivalent of 3M-77 (forget the number), and Tenax 7R in a few specialty situations. Probably left out one or two.
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I love sanding. |
#5
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Stuff I use:
Elmer glue all, Elmer Carpenters wood glue, Tenex 7r (for plastic), Allenes tacky glue (for wraps) , Titebond mold and trim glue (A must have for fillets on small rockets), Bob Smith 15 minute epoxy (large fillets, etc.), CA Bondo glaze and spot putty Future floor polish Pactra vintage balsa filler coat - Midwest sanding sealer If you want to make a trick rocket that falls apart in flight use orange testers plastic cement |
#6
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Ambroid (and Sig-Ment) along with Testors Cenent (both yellow and green tube) are extremely WEAK adhesives for attaching fins on rockets and is even worse for engine mount use. I would never use it even for 1/2A mini-motor power stuff. If it works for you and it is what you like, go for it.
For LPR up to 24mm C11 power I attach with Titebond II and fillet with 15 or 30 min Epoxy. The strength of epoxy is not required for under a high-thrust full 80 n-sec F, but it makes totally even, single-pass, ultra strong fillets. For all 24mm D12 power and-up I use 15-min Epoxy to attach fins and 30-min Epoxy for fillets. I build the engine mount(s) with 30-min Epoxy. I use quality aircraft-grade Epoxy, not junk hardware store stuff. I don't ever use 5-min Epoxy; that stuff is weak junk. Is Epoxy really neccessary below say an H250 ? Maybe not, but I NEVER have fins separate from tubes on landing and the extra weight is negligible. For plastic cement I almost always use Tenax 7R plastic weldor. I use medium-thickness Super Jet CA for limited use in rocket building where appropriate, but use a lot of it for building R/C aircraft. For Balsa grain-filling I use Vintage Pactra Aero Gloss products. 3 coats of Balsa Fillercoat followed by 2-3 coats of Sanding Sealer. For Contact Cement where required, I use vintage Sig Core-Bond which primarily is used for attaching 1/32" Balsa or 1/64" plywood skins to R/C Pattern-Airplane foam wing cores. It works well for attaching body wraps to rocket tubes. For clear-canopies I use R/C 56 glue.
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When in doubt, WHACK the GAS and DITCH the brake !!! Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't ! Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY. ALL systems are GO for MAYHEM, CHAOS, and HAVOC ! |
#7
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Look, a glue thread !
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I've been waiting two days for it, but no one else has said it, so please allow me: "Look! A glue thread !" How appropriate that I should allude to rmr on Throwback-Thursday Doug .
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YORF member #11 |
#8
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Quote:
I go back far enough to be an rmr'er, but probably so old I don't remember the glue threads. Does it make sense to make glue threads a "sticky"? Just wondering ....
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Lee Reep NAR 55948 Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor In the Paint Shop: Nothing! Too cold! Launch-Ready: Farside-X, Maxi Honest John, Super Scamp |
#9
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Quote:
In hindsight, I probably saw more comments about glue threads than I saw actual glue threads Doug .
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YORF member #11 |
#10
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Well, glue and filling balsa grain products and techniques. The good thing is we have a lot of options.
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