When applying a second coat of larsen concrete dustproofer to concrete floor, how long do you leave the first coat before applying the second?
21st April 2009 The second coat can be applied as soon as the first has absorbed into the concrete. After the application of the final coat has been applied, it is important to ensure there are no puddles of Dustproofer remaining on the surafce. Before teh final application has dried, the floor should be well rinsed with clean water.
