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Conference vmszoo::rc

Title:Welcome To The Radio Control Conference
Notice:dir's in 11, who's who in 4, sales in 6, auctions 19
Moderator:VMSSG::FRIEDRICHS
Created:Tue Jan 13 1987
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1706
Total number of notes:27193

1278.0. "Covering w/ glass&Ca" by USRCV1::BLUMJ () Thu Dec 27 1990 14:23

    I was wondering if anyone has any experience covering sheeted
    surfaces with light fiberglass(.5 oz./sq.ft.) and thin Cyano-
    acralate glue.  I have seen a finished P-38 that the builder
    used this method to cover the entire plane.  It looked great!
    This method appeals to me because of the light weight and instant
    cure.  They allude to using this method in Satellite City ads.
    The builder of the P-38 said he just places a plastic baggie
    over his fingers to spread the Ca onto the glass.  Any suggestions
    or experiences with this technique would be appreciated.
    
                                             Thanks,
    
                                             Jim
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1278.1Heard of it done but haven't tried it yet.ZENDIA::REITHJim Reith DTN 226-6102 - LTN2-1/F02Thu Dec 27 1990 14:3811
    I have a friend who's used this on center sections. It turned out fine
    but you still need to fill it in. On thing that he used was a VERY
    light misting of F77 to tack the cloth into place so he could move the
    wing around without twisting the cloth out of alignment. It does sound
    neat and fast but be careful of those fumes (or use UFO)
    
    Is the P-38 the RCM plans with the twin .15-.20s? I'm going to build
    that this winter and I'm pretty sure they recommend that method in the
    construction article.
    
    What did your friend fill the cloth grain with afterwards?
1278.2P38 infoUSRCV1::BLUMJThu Dec 27 1990 15:1012
    The P-38 I saw was at a fun fly two years ago.  I did not know
    the builder/flyer.  He was from Pennsylvania and either worked
    at or owned an auto body shop, which probably accounts for the
    immaculate finish of the plane.  It was scratch built and he
    estimated that he had about 1000 hrs. invested in it.  It was
    powered by twin HP 60's and had a wingspan of around 90 inches
    if I remember correctly.  It was entirely constructed of wood
    and covered with light fiberglass and Ca.  I real strong performer!
    
                                              Regards,
    
                                              Jim
1278.3digital CA applicatorsPOBOX::KAPLOWSet the WAYBACK machine for 1982Fri Dec 28 1990 11:5811
        I've seen it done without the benefit of a baggie! For many years,
        I've used fingers to apply CA. It takes some practice, a certain
        amount of common sense to know what NOT to do (pick your nose,
        etc.) along with a certain LACK of common sense to try it in the
        first place. CA in large puddles does not set up, giving you a
        chance to work it in and around. If you feel heat, drop everything
        quick, or become one with it!
        
        Actually, when sanding small parts, I will intentionally apply a
        layer of thick CA to my thumb and finger, to prevent from sanding
        thru the skin of the fingers holding the part.
1278.4Some CA Glassing Tips.PEE47::COXSo Speedy, how do we get zeez brains?Fri Jan 04 1991 08:0917
    I've been using this technique sucessfully on center sections for
    several years.  I wouldn't think of doing it any other way!  There are
    two simple tricks of the trade:
    
    1.  A light misting coat of 3M 77 spray adhesive insures that the cloth
    stays put.  This apparently doesn't effect the curing or strength of
    the bond.  Make sure all wrinkles are worked out of the cloth ahead of
    time.  The 3M can be pulled and repositioned a few times.
    
    2.  Let gravity help you along!  To avoid puddles, tilt the piece and
    flow on the thin CA from the top down.  The cloth soaks up what is
    required , and the excess flows downward.  Pretty neat!
    
    This technique was the subject of an article in Scale R/C Modeler a
    year or two ago.  Any help here Al?
    
    Scott Cox
1278.5BRAIN FADEUPWARD::CASEYATHE DESERT RAT (I-RC-AV8) 551-5572Fri Jan 04 1991 10:0411
    Re: .-1, Scott,
    
    Oh boy!  I'm familiar with the technique but honestly don't recall an
    article on it in SR/CM.  I could dig it out if anyone could supply more
    info on which issue it appeared in.
						 __
				|      |        / |\	   	       
      	         \|/		|______|__(o/--/  | \	   	       
      | |        00	       <|  ~~~  ____ 04 ---- | --------------------
    |_|_|        (O>o		|\)____/___|\_____|_/	   Adios amigos, Al
      |     \__(O_\_	        |	  |___/	 o	   (The Desert Rat)
1278.6SA1794::TENEROWICZTFri Jan 04 1991 10:166
    Al,
    
    I think it was back in the August timeframe.  
    
    
    Tom
1278.7Cost?CLOSUS::TAVARESJohn--Stay Low, Keep Moving!Fri Jan 04 1991 10:181
Isn't it expensive to use CA versus epoxy?
1278.8YES AND NO.....UPWARD::CASEYATHE DESERT RAT (I-RC-AV8) 551-5572Fri Jan 04 1991 13:0014
    Re: .6, Tom,	August of what year?
    
    Re: .7, John,	Yes, I should think so, at least up front. 
    Polyester or epoxy resin isn't all that cheap either (though
    considerably cheaper by volume tha CA) however, considering the time
    saved and the fact that resins go bad, causing you to frequently lose
    nearly a whole can of it, cost may balance out somewhat in the long
    run.
						 __
				|      |        / |\	   	       
      	         \|/		|______|__(o/--/  | \	   	       
      | |        00	       <|  ~~~  ____ 04 ---- | --------------------
    |_|_|        (O>o		|\)____/___|\_____|_/	   Adios amigos, Al
      |     \__(O_\_	        |	  |___/	 o	   (The Desert Rat)