PFAS-free polymer processing aids, such as the SILIKE SILIMER Series PFAS-Free PPA, are suitable for a wide range of blown film systems, including HDPE, LDPE, LLDPE, and metallocene LLDPE (mLLDPE). These systems are widely used in flexible packaging, agricultural films, stretch films, and multilayer co-extrusion structures. The additive helps stabilize extrusion performance across different polyolefin resins by improving melt flow behavior and reducing interfacial friction at the die.

In blown film extrusion, common issues such as melt fracture (sharkskin), die build-up, bubble instability, gel formation, and surface defects are often caused by high shear stress and narrow processing windows in polyolefin resins. PFAS-free PPAs like the SILIKE SILIMER Series PFAS-Free PPA help improve melt flow behavior at the die interface, reduce polymer degradation effects, and enhance overall process stability. This results in smoother extrusion, improved film uniformity, and more consistent production performance, especially under high-speed operating conditions.

Traditional fluoropolymer-based processing aids have been widely used to reduce melt fracture and die build-up in polyolefin film extrusion. However, increasing regulatory restrictions and environmental concerns related to PFAS substances are driving the industry toward safer alternatives. PFAS-free solutions, such as the SILIKE SILIMER Series PFAS-Free PPA, provide a non-fluorinated approach that helps maintain stable extrusion performance while supporting sustainability and regulatory compliance. This makes them a practical choice for converters and brand owners seeking long-term production reliability without fluorinated additives.