Thank you for posting your feedback. We're sorry to see your low star review on DAP Fast 'N Final Lightweight Spackling. The product is specifically formulated as a low moisture/low density spackling compound for faster dry time/paint time. It does not dry with the same hardness as traditional heavyweight spackling compounds. 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 detailed response 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 for you.