Residential Design & Build Product Guide

Pro-Series PR-255 and PR-256 polyurethane sealants

Pro-Series PR-255 and PR-256 (pictured) polyurethane sealants for window, siding, door and roof applications are designed as general purpose sealants to provide permanently flexible water- and weather-tight seals. They are one-part moisture-curing polyurethane sealants that provide adhesion to most construction materials, such as concrete, masonry, stucco, cedar, aluminum, steel, vinyl, fiber-cement and more without the use of primers.