The company’s Heat Sealing Masterclass shows food retailers and their suppliers the various steps required to meet an ideal standard of sealing for their particular applications, and delivers expert advice on best practice and material usage. The class provides participants with a set of practical solutions to solve and prevent the most common sealing issues. As part of this, Proseal has created a clear set of definitions for what constitutes a good seal, based around what the company defines as The Three Pillars of Heating Sealing - Materials, Design and Maintenance.