Just purchased a Yak 52 with a fiberglass covered wood propeller (Russian 2-blade V-530 propeller). It has a few small pieces of the glass chipping away and a 2 inch long 1/16-1/32 deep fine strip missing on the trailing edge. Although some oil has saturated the exposed wood, it looks very repairable with simply epoxy. I plan to MEK the open wounds and then use a 2 part epoxy to fill and file smooth.

Does anyone know a specification for the maximum repairable defect size? EAA video recommends nothing deeper than 1/8th inch. Anything more definitive?

Is epoxy the ideal repair material for a fiberglass over wood blade?

Any additional preparation techniques better than MEK?

Thanks!