#11
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Since the fins DO get mounted to the wrap, what is the general consensus for the best adhesive to use to mount the fins strongly to the wrap? Page 5 of the instructions says plastic model cement. Is there anything better, or is it already the best choice?
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
#12
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John Boren posted on TRF about building models for a trade show. He mentioned that on his LJII he used medium CA to attach the fins to the wrap.
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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 |
#13
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Lee, check your PM inbox.
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I love sanding. |
#14
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Tim, many thanks ... Reply sent. Everyone, nothing earth-shaking, just a request for a decal file ...
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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 |
#15
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I've used the elmers spray craft glue before. At first it works great, after a couple of years it dries out and the lamination came off in places. Not impressed. Always use the 3M Super 77 or the 90 now! Mike |
#16
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Thanks for the heads up on the Elmers. Turns out I use spray glue in my wood shop for a several tasks that aren't permanent so I will likely just use it there.
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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 |
#17
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Check out Posts 13 & 14 in this thread over on the Other Forum for a brief overview of how the 3M High Strength 90 spray adhesive is used on the LJ kit:
http://www.rocketryforum.com/showth...261#post1545261 James |
#18
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It looks like I'll definitely be using something other than plastic model cement to attach the fins to the LJII wrap. I mounted all of the OTHER plastic parts to the wrap with plastic model cement and they sloughed right off. It appears that model cement isn't "hot" enough to weld through the wrap. I don't think I want to use Tenax7r and risk crazing the wrap, so I'll try the CA. If the CA tanks--at least I have debonder for it. --but first I'll hit the wrap with steel wool to give it some "tooth".
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
#19
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Strange, the plastic detail parts worked fine on my LJII kit with the use of Tamiya liquid cement. Any chance that the wrap was already primed and/or painted? That would certainly prevent the cement from working properly. Tenax should work fine, although you should use a fine paint brush to apply the paint rather than use the fat brush attached to the bottle cap. Using the fine brush will allow you greater control over the glue application, which should prevent any over-application and surface crazing. Hope this helps, James |
#20
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It does help. Thanks! I'll try the Tenax on one of the little strips first.
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
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