Tissue over mylar application using Eze Dope, it's easy peasy!

Тәжірибелік нұсқаулар және стиль

An easy method to apply tissue over a mylar film finish using Eze Dope.
Eze Dope is a durable and water based finish and can be applied indoors as there are no fumes like with traditional cellulose dope finishes.
Mylar film used was 10 micon and was applied beforehand using balsaloc on the perimeter of the framework and the edges of the ribs and then heat shrunk in the usual way.
Tissue used was Esaki Liteflite which works really well with this method. Its vital that the tissue posseses 'Wet strength' or it will likely disintegrate with manipulation when wet.
The main benefit of using this combination of materials is you get the structural stiffness of a traditional doped tissue finish but with the durability of a plastic finish in that you wont be easily poking holes in it!
As the wing is already air proof with the mylar underneath it only needs the one coat of Eze Dope but subsequent coats may be wiped on if you want to acheive a glossier finish.
UPDATE
Since making this video I've updated my method following some advice received in the comments and now I put the tissue on with just plain water initially and do all the teasing and wrinkle removal, then wipe down with the tissue to remove as much water as possible and any bubbles etc. Then when happy with the fit and finish I give it a liberal coating with the eze-dope mixture and let that soak in a little and then finally wipe to a finish with the tissue again.
I find this even easier still as you have unlimited time to fettle any wrinles and can rewet it with water if necessary. It's a lot less messy too and more ecomomical with the Eze-dope.
Mylar is a brand name for Polyester films manufactured by Dupont Tejjin Films. There are many manufacturers of Polyester film and as far as I can tell for our purposes they're all quite similar and its only really the thickness that concerns us.
I get my mylar film from Mike Woodhouse at Freeflight supplies: www.freeflightsupplies.co.uk/
Another source I've recently found is here:
www.preservationequipment.com...
You can get a 12 Micron Polyester Roll 1524mm x 100M (!) for £35+vat and postage. Fantastic value and probably a lifetime supply .
If Mylar (Polyester film) isn't readily available where you are it's also possible to use the lighter grades of document laminating films which are available in large rolls quite cheaply. These are generally either Polyester(PET) or Polypropylene (OPP) based and have a heat activated adhesive on the back like regular covering film. While heavier than the Mylar, due to the adhesive, they're fine for models 36" span and upwards.

Пікірлер: 26

  • @runforitman
    @runforitman Жыл бұрын

    thank you for that tip about washout I had no idea how i was going to do that for the plane im building I was just not going to do it I'm glad I now know how I will

  • @jimbo2629
    @jimbo26294 жыл бұрын

    Very helpful

  • @runforitman
    @runforitman Жыл бұрын

    I'm glad this is uncut seeing you trying to reposition but running out of time gives me an idea of how long I have to work with it before it sets too much to make major adjustments

  • @SenorBandiito

    @SenorBandiito

    Жыл бұрын

    Yes as long as it stays wet then you can work with it for a long period of time, just keep damping it down if you hit a snag. I guess in theory you could always apply the tissue with just plain water and fettle it into position as required and once happy wipe a coat of thinned eze dope on afterwards whilst its still damp. No chance of getting stuck with any wrinkles you didn't want! Might give that a try next time myself.

  • @murlis0025
    @murlis00259 ай бұрын

    This is brilliant. I've tried tissue on mylar a number of times without a lot of success ditto for Eze Dope - it always ended up really messy (I think I was just laying on too thickly). Your method showed how to do both in one go and it works really well. I recovered an ancient Ajax model which has under cambered wings - the method took some time but worked really well, and I've ended up with a really nice strong, traditional looking finish. Thanks.

  • @SenorBandiito

    @SenorBandiito

    9 ай бұрын

    You're welcome, glad it helped! Since making this video I've altered my method a little and now just apply the tissue with plain water and then do with the paper towel and manipulation to acheive a nice smooth and only slightly damp finish to the tissue and then sponge on some 50:50 Eze dope and then wipe out again with the paper towel. I find it easier this way as it gives plenty of time to get it right without any worry about the Eze dope sticking the tissue anywhere before you're quite finished and happy with it. Especially useful if you're covering bigger or more intricate areas.

  • @murlis0025

    @murlis0025

    9 ай бұрын

    Thanks@@SenorBandiito, I'll try that next time.

  • @charlesg1150
    @charlesg11504 жыл бұрын

    What are battens? Did you also shrink-in washout in the mylar prior to the tissue application?

  • @Paul-el3jb
    @Paul-el3jb4 жыл бұрын

    Hi, nice technique and very nice finish. One question were do you get your mylar

  • @runforitman

    @runforitman

    Жыл бұрын

    Description says "www.freeflightsupplies.co.uk/"

  • @jimbo2629
    @jimbo26293 жыл бұрын

    I find it easier these days to lay the tissue on then wet it with a spray, and then starting from the end lift it back to the middle and let it fall back a little at a timewith the aid of a brush and dope. That gets rid of the wrinkles. It’s taken me years to get on top of it. I guess the EZE dope being water based wets it and shrinks it in one.

  • @SenorBandiito

    @SenorBandiito

    3 жыл бұрын

    That's a good tip, I might give that a try next time. I could see that just concentrating on wetting it out with just water and settling out any wrinkles first and remove excess liquid and then once happy with it you could wipe on a slightly stronger mix of Eze Dope and then wipe off any excess. It would probably be more economical on the Eze dope too that way.

  • @mkii1964
    @mkii19644 жыл бұрын

    Very nice! How do you attach the Mylar?

  • @SenorBandiito

    @SenorBandiito

    4 жыл бұрын

    Thanks. Balsaloc or PVA white glue to the framework and allow to dry, then attatch the mylar with a heating iron on low setting. The heat will reactivate the glue.

  • @jimbo2629

    @jimbo2629

    4 жыл бұрын

    Lots use thinned contact adhesive.

  • @chrissorlie5291
    @chrissorlie5291 Жыл бұрын

    Could i ask is the model your design? if not what is it called? are plans available?? Thanks! ;-)

  • @SenorBandiito

    @SenorBandiito

    Жыл бұрын

    Sure, its a Pietenpol Air Camper, plans are downloadable from the Outerzone here - outerzone.co.uk/plan_details.asp?ID=1102 I changed the wing structure because I wanted to try out a Dave Rees style wing construction. Most of the rest of it was as per plan except modification to suit electric power.

  • @chrissorlie5291

    @chrissorlie5291

    Жыл бұрын

    @@SenorBandiito Thank you very much for getting back to me! I used to fly R/c sailplane a lot. The kids have grown and I have been messing around a bit with balsa again. Our library has just put in a Cricut cutting machine that can do ribs. You have to learn the Inkscape program and I'm working on it. Will keep in touch should I have any success. I too would like to use electric. I might just do a square fuse for a first attempt. Anyway, thanks again for touch base.

  • @SenorBandiito

    @SenorBandiito

    Жыл бұрын

    @@chrissorlie5291 You're welcome! I posted some pictures of the finished plane on Rc Groups here - www.rcgroups.com/forums/member.php?u=38766 so you can get a look at the structure. I'm sure it'll look great as either a simple box fuse or with a few simple formers and some stringers you can create the rounded upper. Being able to use the cricut will really come into its own if you go on to build a tapered wing design and inkscape is a much friendlier tool to use than cad. Good luck!

  • @chrissorlie6497

    @chrissorlie6497

    Жыл бұрын

    @@SenorBandiito Thanks Senor!!! Just getting over Covid. At 72 it seems to hang around a little longer. The real aircraft is beautiful. I have a humble 82 hrs. in a 150/172. Just couldn’t afford it. I could see people in the thirties looking at a Pietenpol much like i would look at a Challenger or Flightstar ultralight. Anything to get you in the air. Some lovely full size Pietenpol aircraft. My father and a partner owned a Slingsby Skylark 4. It was all cream with a red tail. As a colour, cream belongs in the sky !!! Will keep in touch. Thanks again for your help! Chris

  • @jpennturner
    @jpennturner2 жыл бұрын

    Perhaps you could change the colour of the writing to make it readable, otherwise great

  • @SenorBandiito

    @SenorBandiito

    Жыл бұрын

    Agreed, next time I'll use a colour with a better contrast!

  • @chrissorlie6497
    @chrissorlie64973 жыл бұрын

    Where do you get your mylar?

  • @SenorBandiito

    @SenorBandiito

    3 жыл бұрын

    I got mine from Free Flight Supplies in the UK - www.freeflightsupplies.co.uk/

  • @JeffPhillips2014
    @JeffPhillips2014 Жыл бұрын

    why tho?

  • @runforitman

    @runforitman

    Жыл бұрын

    so it can fly wdym

Келесі