UltraPly TPO XR Stick from Firestone Building Products is a two-part polyurethane adhesive that minimizes VOCs. It can be used over many existing substrates, including insulation, concrete, lightweight concrete, wood, and metal. It is designed for use in commercial, new, and re-roof applications with the company’s fully adhered fleeceback UltraPly TPO XR roofing systems. The XR Stick can be applied to a substrate in ribbons or beads of 4", 6", or 12", depending on jobsite requirements. The adhesive is available in twin cartridges or a 5-gallon bag-in-a-box package. www.firestonebpco.com