I molded a leading edge and it didn't come out quite right. It's got a couple of low spots/indentations where some of the ribs were a little too small. I don't want to rip off the LE because it's glued on so tight so I want to fill the dents with something. It's on the bottom of the outboard wing so weight is not a big problem.
I was thinking Hobbylite balsa colored filler because it's cheap, easy to apply and sands very easy. I know it's not good for fillets but I'm going to cover the wing with polyspan and nitrate dope and wondering if it would cause a problem under there? Don't care about adhesion in that little spot but would it eventually blister up?
Really didn't want to pay $30 for Superfil only to use it once. The other option I have in the shop right now is Bondo.
Ok in very small quantities and not around butyrate dope. All of these lightweight latex-based spackle compounds are incompatible with butyrate dope. The original CG "Model Magic" was renamed "Model Tragic" because of the issues.
If you just have rare small need, red air-drying automotive filler, or Testor's contour putty, is a reasonable alternative.