After sanding, it seems to take forever for that tiny airborne dust to settle down onto the floor; that's why many contractors wait to coat until the next day, after the dust has settled. Using a box fan with a filter taped on it-drawing in dusty air and exhausting clean air-can help speed the process, trapping airborne dust instead of just blowing it around. The number of fans and filters needed depends on the size and configuration of the area.
Thanks to 3M's Galen Fitzel for his tip. Do you have a Trick of the Trade? Send it to [email protected]
