Apply by medium nap roller (3⁄8" nap for best results) or brush in an even film at 300 to 350 square feet per gallon. Allow adhesive to dry for 20 minutes minimum at 75°F. Drying times may vary at lower temperatures. Porous substrates will result in reduced coverage rates for proper adhesion. Adhesives have a satisfactory cure when surface is tacky, but will not transfer when touched. Apply only on areas to be waterproofed the same day. Re-apply if membrane is not applied in the same day as the primer or if the area becomes wet or contaminated. When used in adverse climatic conditions (i.e. humid, cool, etc.) or on a porous substrate, or on a porous substrate, an additional curing time will be required.