Securing structural and architectural elements in precast concrete forms is made easier with two new glue gun systems. The TEC 3200 and TEC 6300 models are hot melt systems that will adhere to wood, foam, plastic, metal and epoxy. The 3200 is an all-electric applicator that applies adhesive in bead or dot formation at a variety of temperatures. The 6300 is an electric-pneumatic system that features a flow adjustment operation that allows for a variety of spraying patterns and coating widths. Power Adhesives. 704-334-2425.