Plane waterproofing

[PaulK]

Is it possible to waterproof your plane by just spraying it with clear coat?

 

[Merv]

Waterproof, no. Water resistance yes, clear coat will work just fine.

Many use a clear polyurethane, any brand will work, the same stuff used for woodwork. The oil based products work better than the water based products.

Myself, I cover my entire plane with packing tape, sometimes called carton sealing tape. Don’t use duct tape, it’s too heavy.

 

[Anton005]

You have to be careful to not spray it on too heavy, if you do, the paper soaks up the spray and delaminates and or wrinkles. You can brush on a light coat of polyurethane, that will protect it from water as well. I do that before I spray paint them.