Thermoplastic linings

With its mechanically anchored thermoplastic lining systems, Steuler has greatly expanded the selection of materials used in industrial corrosion protection. Combining a thermoplastic lining featuring high corrosion and chemical resistance with a statically highly durable material like concrete creates the ideal combination of stability, safety and durability.

The BekaplastTM lining system developed by Steuler safely suppresses the expansion differentials of the two materials. It has proven its value in use in the chemical industry and in municipal sewage systems over the past 30 years. Based on this, Steuler has created a number of different lining systems for specified fields of application.

  • Bekaplast™ for sewage, reaction and processing tanks, absorption towers, entire sewage systems, electrolysis cells, flue gas scrubbers

  • Bekaplast™ DWS Double Wall System

  • Bekaplast™ catchment basins with the official DIBt Building Permit

  • Lining 400™ for municipal sewage systems, shafts and tanks

  • Ankerplast™ for Tübbing structures in municipal sewers and other structures made of prefabricated concrete components

  • Bolted Lining™ a bolted-on thermoplastic system for retrofit linings and the relining of steel and concrete structures

  • MFA and PFA linings

Thermoplastics are highly chemical resistant, stand up to mechanical loads and are also resistant to biogenic corrosion. Welded to be gas and water-tight, the smooth, anti-adhesive surface offers low friction and prevents incrustations. These lining systems are easy to install, can be repeatedly tested and are also easy to repair if ever damaged.

The available materials, polyethylene (PE-HD), polypropylene (PP), polyvinylide fluoride (PVDF) and polyvinylchloride (PVC), can be delivered in a variety of thicknesses and in various material grades to be electrically conductive, UV-stabilised or even with anti-skid properties. Ladders, pump swamps, pipe connections, trench constructions and detailed system solutions round out the portfolio of systems.

BekaplastTM PE-HD has a general DIBt Building Permit for use in sealing catchment basins for the storage of liquids hazardous to water.
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Owing to the defined number and patented form of the Bekaplast™ anchor stubs anchored in the concrete, stresses induced by the different thermal expansion properties of concrete and plastic are safely and reliably contained.


Bekaplast™ DWS – Double Wall System with defined


Lining 400™ was specially developed for the new construction and refurbishment of municipal wastewater systems.

Prefabricated Bekaplast™-Double Wall containers for the buried installation of process tanks.

Bekaplast™-vessel with a capacity of over 100 m3 for the rapid refurbishment of a pickling plant.


Steuler also installs Bekaplast™ as concrete scrubber linings in flue gas desulphurisation plants.

Secondary containment with building regulation approval (DIBt-Test Certificate) in a petrochemical plant.

Sewage pipe system completely lined with mechanically anchored thermoplastic materials. Steuler also offers special design solutions to integrate coatings and brick linings.