How thick can the flexible patch and leveler mix for plywood be applied?

Thank you for posting your inquiry on DAP Flexible Floor Patch and Leveler. As indicated on the product package label and support product literature: “Apply up to ¼ inch and let dry approximately 6 hours to a hard consistency. For thickness greater than ¼ inch, apply in multiple coats allowing each coat to dry completely between application. Feather edge all applications to ensure a smooth surface. Maximum application depth is ¾ of an inch.” Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.