I don't use anything - no press 'n seal, no sure seal, nothing. I do towel the area dry around the edges of the flange and the back side of the bag... then go around the area once or twice realy quick with the blow dryer as I am blow drying my hair. I get about
7 days wear time with Convatec Sur-Fit system. I do not use any skin prep or powders. I do use Eakin Seals and a convex insert in the wafer.