HELP ? Resin/material type for repair of Warp Drive Prop & Mc CUTCHEN Rotor ?

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Best techniques ? & is there a service life on McCUTCHEN rotors ?Just a few scratches/burred tips on blades, And scratches on rotors, but slight delemination on trailing edge 1cm x .5 were a ding 10cent sized has occurred 1/4 in from centre of hub. Thanks all..