Seal failures typically occur when fine powder particles migrate into the sealing area, interfering with bond formation. Even minor contamination can weaken seals, particularly when operating within a narrow sealing window or when film behavior is inconsistent.
Entrained air and product movement during filling can further disrupt seal formation, especially in fine powder applications where product behavior is less predictable.
Seal reliability also depends on maintaining stable sealing conditions. Variations in temperature, pressure, and dwell time—or inconsistencies in film properties, can increase sensitivity and reduce repeatability over time.
In powder applications, maintaining controlled sealing conditions and managing product behavior near the seal zone are often more critical than simply increasing sealing temperature.
Contact us to review your current sealing challenges.