What is the hardest wood filler? - AskingLot- minwax wood putty vs wood filler ,Unlike Minwax® High Performance Wood Filler, Minwax Wood Putty® is a non-hardening putty designed to cosmetically fill nail holes, joints and other minor surface imperfections. It readily accepts and Minwax® stain and, once stained, will match the surrounding wood.Wood Putty Vs. Wood Filler: Which One For Your Project16/4/2021· Wood putty is actually easier to use than wood filler because you just use it and go. It is thicker than wood filler and can be used for home repairs. For example, say you rewire a room and there are holes in the doorframes. If these doorframes will be covered by the door again, you can fill them with wood putty and then cover them up.