Thank you for posting your feedback. We're sorry to see your low star review on DAP Kwik Seal Ultra. With respect to your commentary indicating: "Said clear on container but came out white when it finally dried 28 hours later it turned light green." As indicated on the product package label and supporting product literature, DAP Kwik Seal Ultra (Clear) applies white and dries clear in 7-14 days (depending on joint depth, temperature and humidity). A green/blue color shift that occurs post application (not as the product is being dispensed), signals that the product was applied in the presence of copper and/or a copper alloy (a reactive metal). Should you have any additional questions, require further assistance, or wish to discuss this in more detail, please contact DAP’s Technical Customer Service Department at 888-327-8477.