Polystone Polypropylene by Dotmar has long been the forgotten child with engineers when temperature, chemical resistance and rigidity are required in extreme environments.
Dotmar Polypropylene (PP) in industry terms is a homopolymer material as opposed to a copolymer material commonly offered. Although similar in many aspects each exhibits distinct differences in both appearance and performance. For example homopolymer PP is a harder more rigid material with a greater resistance to creep and higher tensile strength than co polymer.
Polystone Polypropylene has a continual service operating temperature of 130°C which has for years bridged the thermoplastic material gap between PVC (60°C), HDPE (90°C) and Advanced Engineering Plastic materials such as PVDF (150°C), ECTFE (160°C) and PFA (260°C) in chemical storage applications.


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Polypropylene (PP) also offers - distinct advantages in relation to weight with a specific gravity of 0.9 when compared to PVC(1.45) and fiberglass (1.45).

Traditionally used for chemical vessel construction in sheet form Polystone Polypropylene is also available in Rod & Tube and is widely utilised for finished machined parts where a broad chemical resistance, high service temperature, excellent electrical insulation and rigidity are required. |