The HB220 is not your typical glue gun – it is a professional grade adhesive system designed for all day use in a variety of flooring installation, remodeling, and repair applications including carpet tack strip installation, hardwood flooring start and finish rows, floor transition strips, interior wood trim, moldings, ceramic tile repair, and more. The HB220 Pro Applicator combines an adjustable high temperature range with a powerful 220 Watt heating element that keeps up with heavy all day usage. For best results use with FMFLEX40 (UB8012 replacement) or FMFLEX180 Hot melt Adhesives.