Gorilla All Purpose Wood Filler, Natural Finish, 16 Ounce Tub - Water Resistant for Indoor or Outdoor Projects and Repairs

Used this for a few small repairs around the house, mainly filling nail holes and minor cracks in wood. Easy to apply and spreads smoothly. Doesn't dry too fast, so you get enough time to work with it. Once it dries, it sands down nicely and blends well with the surface. The finish looks clean, especially if you plan to paint over it. What I liked most is that it doesn't shrink much after drying. That usually becomes a problem with cheaper fillers, but this one holds up well. Only thing to keep in mind — for deeper holes, you will need to apply in layers instead of trying to fill everything in one go. Overall, solid product. Gets the job done without hassle. Would buy again.

Two cautions: keep the product moist even when not in use, and allow thicker filler applications a full 24 hours to cure before finishing sanding. Thin patches dry quickly.