TPO injection moulding

TPO injection moulding

TPO (Thermoplastic Polyolefins) is a blend of polyolefin-based plastics and non-cross-linked elastomers.

TPO: plastics that can withstand rough handling

TPO is a highly versatile plastic that comes in various forms, depending on the proportion of elastomer (often EPDM) in the blend. If it contains a high proportion of EPDM, it is a rubber-like material with flexible properties. If the blend contains relatively little EPDM, it is more akin to impact-modified PP.

Both forms are processed by De Beer Plastics to create high-quality technical solutions, ranging from components for bumpers in the automotive industry to sealing corner pieces that are welded to TPO membrane for flat roofs.

The many benefits of TPO

Compared to many other plastics, TPO is highly weather- and UV-resistant, making it ideal for applications exposed to significant amounts of sunlight. An additional advantage is that TPO also performs well in cold temperatures.

Unlike TPV, TPO is either not cross-linked at all or only partially cross-linked. This means that TPO can be joined to form a watertight seal using hot air.

Typical characteristics of TPO are:

  • Operating temperature range: -55°C to +115°C

  • Hardness: 55 Shore A to 70 Shore D

  • Resistance to oils: moderate

  • Resistance to acids: good

  • Resistance to alkalis: very good

  • Resistance to ageing (ozone): good

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