Roger V stopped by this evening and we did a few tests. Whatever glue/pigment is on the black covering is best described as half dried gooy thick india ink.
We tried the following materials over the black soaked wood. 1)clear dope, 2)thinned Tite Bond, 3)Balsa Rite. We used a fresh roll of red Monokote on the various small about 2"x2" areas with either dope, tite bond or balsa rite. The red did not adhere to the area with clear dope over the black goo. The red did NOT adhere to the thinned Tite Bond over the goo. The red "DID" adhere to the area that had Balsa Rite applied over the black goo!!!!
As another test I applied some Balsa Rite over the area that had Clear Dope applied and the Monokote did adhere.
We did try a piece of the black Brodak covering and it made another mess when put on a test patch with Balsa Rite. Roger V did the iron on of the black covering on the test patch and some of the goo actually squirted out from under the covering.
Basicly Balsa Rite seems like the way to go to get the model back in the air. I agree plastic covering is horrible and I do not use it on anything anymore. This particular model is a beater model that has lasted a lot longer than I anticipated.
-Scott