in an older Mercury Trophy 4 blade prop that Mercury no longer makes PVS plugs to fit.
Prop is old but in great shape. I want to use it on new 4 stroke and need the vent holes closed.
I have heard/read about JB Weld, ss welding, iron welding, bronze welding and some glues/epoxies.
How best to fill those 4 holes that are approx. 9/16" in diameter? Thanks