Mestek Machinery’s Hot Melt Sealant System is a sealing system for transverse duct seams that works by heating a temperature-activated sealant and inserting it into the Pittsburgh lock roll former so that it produces a Pittsburgh seam that is airtight. It can be used on a stand-alone machine or on a coil line to adhere to SMACNA duct construction standards.
The Hot Melt Sealant System is a perfect accessory to our Engel 800P. While the Pittsburgh lock is being roll-formed, the sealant is injected into the formed material to make the seam airtight.
Unlike a cold sealant system, the Hot Melt Sealant System has less loss of sealant due to overfilling the seam and the sealant is stored in a solid state, whereas cold sealant is scrapped when it hardens.
HVAC Rollforming, Plasma Cutting, Coiled Metal Processing and accessory tools for the contractor/manufacturer.