Repairing and Filling Cracks in Hardwood Flooring with Epoxy and Sawdust

Our old house house had flipper-refinished floors when when we bought it 5 years ago. The wood filler they had used has popped out of the cracks. We needed to repair a small section of the floor where a wall was removed. Instead of using pre-made wood filler again, I used a combination of epoxy and sawdust (wood flour) to fix this section of flooring.