Is it possible to thin TotalBoat FixWood? Annette DiOrio August 13, 2021 18:51 Updated No, it is not possible to thin TotalBoat FixWood Wood Repair Epoxy Putty. Do not add any type of thinner or solvent to FixWood. Related articles Can I recoat TotalBoat Wet Edge while the previous coat is still tacky? Comments 0 comments Please sign in to leave a comment.