Thank you for posting your feedback. We are sorry to see your low star review on DAP Plastic Wood-X All Purpose Wood Filler. Water-based wood fillers will experience volume loss during their drying phase, to counter this, as indicated in the product usage guidance we recommend: "Build fill up slightly higher than surface to allow for settling and sanding." Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.