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- From: larry@peak.psl.nmsu.edu (Evil Engineer doin' it the Cowboy Way)
- Newsgroups: rec.models.rc
- Subject: Re: Light Covering...
- Message-ID: <LARRY.92Dec30104703@peak.psl.nmsu.edu>
- Date: 30 Dec 92 17:47:03 GMT
- References: <226@heimdall.sdrc.com> <2569@rnivh.rni.sub.org>
- <LARRY.92Dec27190444@peak.psl.nmsu.edu> <2572@rnivh.rni.sub.org>
- Sender: usenet@nmsu.edu
- Organization: New Mexico State University, MetaPhysical Science Laboratory
- Lines: 73
- In-Reply-To: torsten@rnivh.rni.sub.org's message of 29 Dec 92 12:02:53 GMT
-
- >>>>> On 29 Dec 92 12:02:53 GMT, torsten@rnivh.rni.sub.org (Torsten Leibold) said:
- [...]
- Torsten> :-) Have you ever tried to make a finish with tissue and
- Torsten> dope on your own ?? Well, then I cannot understand why
- Torsten> you call it low-tech. I think the handling of an iron is
- Torsten> quite easier than that ...
-
- :-) Absolutely!
-
- The truth is, I cover ALL my full-bodied CL stunt ships with silkspan and
- dope. Both planked foam and open-bay built-up wings. Fuselage, rudder,
- stab, and wheel pants: all exposed surfaces. This serves two functions:
- it adds tremendous strength, plus it covers balsa grain. And it does so
- with absolute minimal weight. (I've experimented with fiberglass/CA over
- planked surfaces with pretty good luck too.)
-
- Of course, the finish requires more coats of dope, sanding, dope with talc
- filler, more sanding, more filler, then silver, sanding, more silver, then
- color, trim, inklines, clear, more clear, sanding, more clear, more clear,
- curing (for weeks) and finally sanding/buffing! But the result should be
- magnificent perfection. Well worth it for any creation as special as
- a CL stunt ship..
-
- And it really IS low-tech. It does involve labor and time. But it requires
- only simple, cheap materials. And not an extremely high skill level.
- Covering with silkspan is not terribly difficult, it just requires patience.
-
- Very light jap tissue finishes, used by the FF crowd use the same basic
- techniques, without all the filling and sanding and colored paint. Just
- tissue and several coats of clear dope. (If you want color, use colored
- tissue!)
-
- I've also used super monokote plus epoxy paint on my profile stunters.
- Although the epoxy paint is super durable, it is noticeably heavier and
- more difficult to spray than dope. And, although super monokote seems
- to be the overall best (not easiest to use) plastic film, its
- durability is poor. Where monokote starts to bag and and loosen and
- raise after a few weeks or months, a dope and tissue finish endures for
- years or even decades.
-
- Torsten> It's no problem to strengthen your structure with
- Torsten> tissue/dope, but it's really hard and very time consuming
- Torsten> to get it beautiful. And it's even harder to get it
- Torsten> light. Really !! Have you ever tried it ? I prefer a
- Torsten> strong but light wood construction that doesn't need the
- Torsten> strengthening of the covering and use film for finish
- Torsten> instead. The only reason for me to use tissue/dope is
- Torsten> it's durability, so I prefer that covering on scale-like
- Torsten> models or on trainers which I expect to last longer than
- Torsten> just some seasons.
-
- If "harder" = "more time and labor", then I agree with your point. But
- the technology involved is actually quite primitive. As for lightness, I
- still contend that you'll have great difficulty finding an equivalent
- finish nearly so light as dope. Lightness is inherent to dope, since the
- most of the paint ends up evaporating.
-
- If you are truly interested in learning how to get a superb dope/tissue
- finish, you should give Windy Urtknowski a call. He has a pair of good
- videos out which provide exact details on every aspect of this finish.
- His phone number is (201) 440-0905. However, be warned that he may talk
- your ear off. :-)
-
- Regards,
-
- L.
- "Yeh, Buddy.. | larry@psl.nmsu.edu (Larry Cunningham)| _~~_
- I've got your COMPUTER! | % Physical Science Laboratory | (O)(-)
- Right HERE!!" | New Mexico State University | /..\
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- Disclaimer: Opinions expressed here are CORRECT, mine, and not PSLs or NMSUs..
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