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filler?

Hi guys, I have read many post of the use of epoxy, I plan to use it with sawdust to fill some holes in a body .. however, my concern is if I have to use the catalyst fot the epoxy resin or I can use only the resin without catalyst, since I see people referring to catalyst for epoxy when using it in fingerboards and so ... but no info on filling holes :hiding: What should I do?
 
Use a 30 minute epoxy. (stays workable for 30 minutes before starting to set) if you can find it. Mix the epoxy as normal(resin and catalyst)keep a small amount set aside for hole prep, then add your sawdust to the rest, to make a thick paste. Work a little epoxy(no dust) into the hole/chip first, and work into the surface ridges of the void, then take the epoxy-wood paste and work this into the area to fill with a flat blade or putty knife until filled slightly higher than the surface. let dry overnight, next day, sand smooth. hope this helps.
 
Use a 30 minute epoxy. (stays workable for 30 minutes before starting to set) if you can find it. Mix the epoxy as normal(resin and catalyst)keep a small amount set aside for hole prep, then add your sawdust to the rest, to make a thick paste. Work a little epoxy(no dust) into the hole/chip first, and work into the surface ridges of the void, then take the epoxy-wood paste and work this into the area to fill with a flat blade or putty knife until filled slightly higher than the surface. let dry overnight, next day, sand smooth. hope this helps.

Thanks a lot for the info, I'll work on it tomorrow and let You know how it went.