High Performance and Safety
Polyolefin materials, such as polypropylene (PP) and polyethylene (PE), show some shrinkage when the melt solidifies, which can create demoulding as well as subsequent nesting problems. While mould release agents eliminate these risks by lubricating the interface between the part surface and the mould, they must be added with care to avoid undesired plate-out or deposits on the inner mould walls, clogging of mould vents and additive migration, for instance out of plastic packaging products into food.
Einar® mould release additives are tailored to the needs of PP, PE, PVC and polycarbonate (PC) injection moulding as well as PP compression moulding processes. “Based on monoglycerides, which are derived exclusively from sustainable palm, rapeseed or coconut oil, our products provide a renewable drop-in alternative to incumbent synthetic competitors,” explains Ulrik Aunskjaer, Global Business Director for Bio-Speciality Polymer Additives at Palsgaard. “Highly efficient performance can often be achieved at notably lower concentrations than with conventional fossil-based amine and amide release agents.” (Fig. 1)
Next to combining proper mould release with high heat and processing stability, Palsgaard’s Einar® solutions also deliver a slip effect to prevent stacked parts from sticking and facilitate denesting in downstream operations. In addition, their anti-static properties minimise the attraction of dust in handling and packaging. All products are approved for food-contact and potable water applications according to international regulations.