Thank you for posting your feedback. We're sorry to see your low star review on DAP PATCH-N-PAINT Lightweight Spackling. PATCH-N-PAINT is specifically formulated as a low moisture/low density spackling compound for faster dry time/paint time. PATCH-N-PAINT does not dry with the same hardness as traditional heavyweight spackling compounds. As this is a water-based (acrylic-latex) formula, the sole drying mechanism is the evaporation of water. Dry time can be significantly impacted by cool or humid application conditions, moisture in the application surfaces or by thick (deep) applications of the patch. The most common cause for slow dry time/development of full hardness, results from application in excess of the recommended fill depth or application outside of recommended guidance. As indicated on the product package label and supporting product literature: "One application is usually sufficient for small repairs. For repairs deeper than 1/8”, apply two or more layers allowing spackling to dry between applications." and "PATCH-N-PAINT may be painted within minutes with a latex paint. Please follow paint manufacturer’s instructions for application. If sanding is desired, or if an oil-based paint is to be used, allow to dry thoroughly, approximately 24 hours, longer dry time may be required in cooler and/or more humid condition or where deep repairs have been made." Full dry/full hardness will only occur once all of the water contained in the formula has evaporated. Because you did not provide any details regarding your experience, such as the application surface, width/depth of fill, temperature, humidly or application technique, it is difficult to provide you with a more details reply in this format. DAP offers several traditional spackling compounds that may be more in line with your needs/preferences. At your convenience, please contact DAP’s Technical Customer Service Department at 888-327-8477 so that we suggest an alternate product that aligns with your preferences.