Sure-Weld SAT (Self-Adhering Technology) membrane is a heat-weldable single-ply thermoplastic polyolefin (TPO) sheet designed for fully adhered new roof construction and reroofing applications. SAT is nominal 60-mil reinforced TPO membrane laminated to an elastomeric pressure-sensitive adhesive. The membrane is specifically formulated for long-term weather resistance without the use of either polymeric or liquid plasticizers. The pressure-sensitive adhesive is a 100% solids, hot-melt adhesive that eliminates VOC and odor concerns typically associated with fully adhered systems. The adhesive is factory applied to provide uniform thickness yielding consistent field performance. An uncoated edge is maintained to allow for heat welded field seams. The release liner is silicon coated on both sides to provide consistent, easy release from the adhesive even if either side accidentially touches the adhesive again after removal.