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If you need EPS or EPP parts, we can help with both development and moulding. We specialise in manufacturing highly complex parts, so we only need to mould a few parts to obtain a complete product.
We engage in close dialogue with the customer about part design, and with our knowledge of tool manufacturing, we can mould the exact parts that the customer need. No task is impossible.
EPP is short for expanded polypropylene. It is a foamed material with a closed cell structure and is known for its light weight and impact-absorbing properties.
EPP is a versatile material that can be used in the finished product.
EPS is short for expanded polystyrene. EPS is a foamed material also known as Styrofoam, Styropor or Frigolit. EPS is known for its good insulating properties, low weight and low cost.
Like EPP, EPS can be incorporated into the finished product.
We always manufacture tools in aluminium for moulding EPS or EPP parts, as aluminium has the right thermal conductivity.
During the moulding of EPS and EPP parts, steam is used to expand and foam the plastic beads. That is why we produce the tools with thin plates and core- and steam valves to release the excess steam.
After EPP moulding, there may still be residual moisture and excess vapour in the parts.
Heat treatment in an oven helps to:
Not all EPP parts require post-treatment in an oven, but if the part is to be used in the automotive industry, for example, post-treatment is important to ensure that the part sets properly and retains its shape.
Additionally we have materials with and without flame retardants, with varying degrees of moisture absorption, and materials with increased impact absorption and flexibility.