"David" wrote in message
...
I did a bit of online research; the results I came up with didn't want
shellac put over an obviously waxy surface. I've never tried to coat a
heavily oily/waxy surface with any of the shellacs I've used, so I
can't say from my limited experience how good shellac is at adhering,
but what about shellac based primers; don't those hold back crayon
marks, et al?


What holds back is also held back. That's the way it is with oil (wax) and
water (shellac) - they don't mix.

I'd say non-polar and polar solvents, but someone'd probably complain again.