3M™ Hot Melt Applicators are designed to help improve productivity, lower costs and minimize waste in industrial applications. From high volume to detail work, 3M™ Hot Melt Applicators ensure optimum performance through melt-on-demand or progressive feed technology to meet your production deadlines. - It uses electric heat to melt and manual pressure to drive the adhesive on demand, smoothly and evenly, to keep various production processes moving.