PROCESSING | PROCESS AIDS AND LUBRICANTS
New BYK processing aids: comparison of visual assessment of transparent film on black and white test card
robust global supply chain, to give assurance that the product will be available in high volumes.” BYK introduced two new polymer processing
aids (PPAs) for preventing melt fracture and reduc- ing die build-up during extrusion. The additives, BYK-MAX P 4109 and BYK-MAX P 4110, are PFAS- free and are effective for high production speeds and fast product changeovers, the company said. “Since their launch in May [2024], BYK-MAX P 4109 and BYK-MAX P 4110 have been extensively tested by a wide range of customers in polyolefin extrusion applications. These applications include blown films, cast films, filaments, and even foamed polyolefins. The products have been met with high satisfaction, particularly due to their effective performance at low dosages of 0.5% to 1%,” said Joerg Garlinsky, Global Head End Use Thermoplas- tics Industrial at BYK. He said that the additives reduce melt viscosity, increase throughput, and prevent issues such as melt fracture and die build-up.
Source: BYK
Non-PFAS options BYK and its research and technical service team are actively developing a next generation of PFAS-free and silicone-free processing additives for PE and PP. “These additives are designed to meet food safety regulations across a wide range of applica- tions and markets. The second generation of these products is nearing market introduction, with initial test customers already using them,” said Garlinsky. On a corporate level, the company announced in October that it intended to ship the last batch of products containing PFAS by the end of 2025 and that it would be introducing PFAS-free alternatives for all its additives for various industries that had formerly contained PFAS. Avient has expanded availability of its new Cesa
non-PFAS processing aid for polyolefin extrusion applications to Asia, the company announced in June 2024. The new processing aid provides performance benefits (eg, reducing melt fracture and lowering torque) at the same dosage levels as traditional fluoropolymer-based additives. Applica- tions include PE and PP extruded films for flexible packaging, cast PP films and PE tubing for various food packaging applications. Avient’s Cesa Non-PFAS Process Aid for Extru- sion is currently manufactured in China, Thailand and the United States. It is available for customers in Asia, the US, and Canada and meets China GB 9685-2016, US FDA, and EU food-contact safety regulations, the company said. Ingenia Polymers has added to its line of
Ingenia Polymers says its new processing aids reduce melt pressure and improve gloss, while preventing die buildup Source: Ingenia Polymers
14 COMPOUNDING WORLD | April 2025
non-PFAS PPAs with additional grades that fill specific requirements in film and lamination applications. The company said that IP1171, which was the first to be introduced for film, works well to prevent melt fracture and die buildup across a broad range of resin architectures and shear rates. A
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