MAPEI’s new Mapelastic™ 400 is a low-odor, thin, liquid rubber membrane that is applied with a roller or brush, and features a reinforcing fabric with instant grab Mapelastic 400 is applicable to commercial and residential bathrooms, showers, kitchens and locker rooms. This LEED-compliant product helps contribute valuable points toward LEED-certified projects, the company says. For details, circle 180 on the Reader Inquiry Card.