Re: tank coatings and cork float coatings

[amuller]

quote sailor58:

I use airplane dope on cork floats. Two or three coats. You know the stuff you painted on the tissue paper skin of your balsa frame airplane models? Last time I bought some at a hobby shop the young man at the store told me they don’t call it dope anymore. Its now known as sanding sealer. It’ll stand up to hot methanol, nitromethane and caster oil, E-10 gasoline won’t touch it.
Larry

Been a long time since I made a balsa/tissue airplane. But my recollection is that the sanding sealer went on first, then colored dope, then maybe some sort of fuel proofing topcoat, what we would likely call a clearcoat these days.

Dope solvents are toxic and tend to turn people into dopes. Fairly comprehensive discussion here: http://www.airfieldmodels.com/informati … erials.htm