HE572 - Blueskin Spray Prep - aerosol is used as a spray adhesive for self-adhesive membranes such as Blueskin@ SA, WP200 or RF200 when applied to masonry, concrete, wood, exterior grade gypsum board, DensGlass@ and metal surfaces. Blueskin@ Spray Prep is ideal where a very fast drying adhesive is required. Convenient spray can application eliminates the need for brushes or rollers. Three minute tack time. Designed for applications above -10 degrees F. Limitations: Solvent in product attacks polystyrene insulation. Avoid use where solvent odors may taint food or other susceptible products. - Henry Blueskin Spray Prep, Aerosol, 15 oz.