Slot Die Coating of Hot Melt PSA’s: How to Maximize Performance and Achieve High Quality Results

Presented by Scott Niedfeldt, "Nordson Extrusion Dies Industries, LLC"

Manufacturers of pressure-sensitive adhesive (PSA) tapes and labels have a variety of coating methods to choose from, with slot die coating being a widely adopted technique for achieving precise application of hot melt adhesives.   A common challenge facing many of these companies is limited in-house technical expertise with slot die systems. This knowledge gap often affects organizations that are either new to slot die coating and lack internal guidance, or those that have used the process for years but have lost critical know-how as experienced employees are promoted, leave, or retire.   A strong understanding of die operation, setup, and troubleshooting is vital. It empowers plant engineers and operators to quickly identify coating defects, optimize processes, and consistently deliver higher-quality products.   In this presentation, Scott Niedfeldt from Nordson EDI shares practical insights and guidance on PSA hot melt slot die coating. The goal is to equip teams with the knowledge and tools needed to maximize the performance of both existing and new equipment—helping ensure reliable, high-quality results in hot melt PSA production.