by jensheydel » Sun Jun 26, 2011 3:07 pm
Supercubber, covering the entire frame with a 50/50 mix of white glue ( I am guessing Elmers or something like that right?) is not really needed. The only surfaces that should have it are the surfaces that actually get the silkspan paper attached to them. Putting it anywhere else is really just adding dead weight to the model. I would not do it all if you intend to use a glue stick.
Glue sticks (UHU or Elmers) do require a bit of practice and I strongly urge you to spend time making certain the framework is sanded to a fine finish. I use very fine paper to finish sanding the frame prior to using a glue stick. My personal experience is that the frame should be left bare when I use a glue stick. The reason is the glue stick simply sticks better to a smooth bare wood surface. This also provides you with a nice smooth finish afterwards. After the glue has dried out (at least ovenight) then you can go ahead and shrink the paper using a very fine mist of water to moisten the paper covering. Important is that you do not soak it as glue sticks are not waterproof and will if wet enough let go of the paper. I generally use steam appllied very lightly (do not burn your fingers please).
Best practice is to practice, take some scrap balsa and build a few simple structures and cover them with paper using a glue stick. After the paper has tightened then use a thin coating of dope to seal the whole thing up. Dope will initially loosen the paper a bit but after it dries it will tighten back up, and by the way it continues to tighten the paper over time. Use caution with dope .. the stuff does not just have a strong smell these vapors are also dangerous. So always use dope in a well ventilated room.
Cheers, Jens