What are the differences between DRY FLEX® 1, 4, and 16?

The numbers refer to approximate drying times in hours (at 20 degrees) DRY FLEX® 16 is ideal for larger projects where time is not a factor DRY FLEX® 4 is suitable for small and large repairs that need completing within a day. DRY FLEX® 1 is suitable for fast, small repairs from 5 – 10 mm in depth, for example emergency response maintenance. Further details can be found on the products page.