Flexible and convenient
Enhancing these benefits, Palsgaard offers a complete range of plant-based food-grade glycerol monostearate (GMS) and glycerol tristearate (GTS) EPS coating additives as well as convenient all-in-one coating additive blends. Customers seeking to reduce their overall carbon footprint will also appreciate that we produce all of our biobased additives in fully carbon-neutral facilities.
Among the single-ingredient additives, Einar® 501 adds anti-static performance to prevent the agglomeration of EPS beads during pre-expansion, transportation, storage and moulding. It also minimises the attraction of dust and static energy to finished part surfaces. As a fine GMS powder, it allows manufacturers to create their own formulations with recommended loadings from 0.1 to 0.6 percent, depending on the bead size and specific processing conditions. Small beads require higher concentrations due to their larger surface area.
Einar® 511 is a GTS cooling time enhancer in very fine powder form for use at loadings from 0.1 to 0.4 percent. It facilitates the exchange of foaming agent and air in the moulding process, which reduces the need for cooling and helps EPS converters achieve faster moulding cycles.
As ready-to-use blends for optimized additive inventory and more efficient handling, Einar® 531 and 533 combine anti-static and cooling time enhancement in different ratios. Recommended concentrations are between 0.2 and 0.5 percent. For applications requiring very high lubricity, Einar® 543 and 544 are available as full EPS coating blends with varying content levels of zinc stearate.
All of our EPS coating solutions can also be used for closed-cell extruded polystyrene foam (XPS). The products are complemented by full technical support based on many years in the industry of fine-sprayed glyceride esters.
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About the author
Christina Normann Christensen is Product & Application Manager for polymer additives at Palsgaard. At the company’s Polymer Application Centre in Juelsminde, Denmark, she is responsible for planning, coordinating, managing and implementing the development of Einar® plant-based additives and customer projects for non-food applications. Normann Christensen has a Master of Science from Aarhus University in Chemical Engineering with specialisation in polymers and plastic engineering.