Tissue sticking

[Londoner]

Sometimes when doping thin sections such as tailplanes I have found that the upper and lower tissue sticks together in places. Is there something wrong with my technique?

[Ray Klein]

Are you shrinking the tissue first with water or alcohol? I would also try thinning the dope and apply several light coats, you may consider an airbrush for this. Good luck, Ray

[Londoner]

Thanks Ray.
Shrinking with water/alcohol mix. Don't have an air brush.
I'm going to make a few small squares from 1/16 strip so I can experiment with a few ideas.

[Londoner]

P.S. I am using Eze Dope and I wonder if that is more prone to sagging than the real stuff.

[Ray Klein]

Ezy Dope,,,I think its water based? On heavier application would cause the tissue to sag again before tightening. Thinning it and several lighter applications (drying in between) may work?

[Londoner]

Hi Ray
I have come to the conclusion that Eze Dope, or any water based finish, is difficult to use on thin sections though I am happy with it for most applications.
I have just built a stab and fin for a small model just using 1/16 square and I finished it with hairspray. This seemed to work well with no sag but it is not waterproof and I am not sure how it will fare on a humid day. Still it will do for the time being until I can pick up some proper dope.