Thank you for posting your feedback. We are sorry to see your low star review on DAP Concrete and Mortar Filler and Sealant. Based on your commentary indicating " it cracked everywhere”, it would appear to signal that the application (joints/materials) that you are using the DAP Concrete and Mortar Filler and Sealant on, may be experiencing a significant amount of movement/instability and/or the product was being applied too thickly (which can result in uneven drying/tension, leading to cracking). Joints/materials that are prone to experience significant expansion/contraction forces may require higher performance products, such as our Premium Polyurethane Adhesive Construction Sealant. Because you did not provide enough details regarding your attempted application (surface preparation, surface conditions, humidity, joint dimensions, application technique), we are not able to provide you with a more detailed response in this format. Should you wish to provide this information, so we can better address your concerns, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477.