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SAERTEX multiComSAERTEX multiHat combi

Our Hat Trick: Our SAERTEX® multiHat combi System

Our innovative, economical and secure GRP-Double-Hat-Profile to rehabilitate the speed of light.

Our GRP-Hat Profiles consist of a seamless and double ECR fiberglass cord. This material has the advantage that in principle a permanent chemical and corrosion resistance can be ensured. In-house production of our GRP-Hat Profiles allows a high flexibility in production.


The installation of the GRP-Double-Hat-Profile SAERTEX® multiHat combi is safe and quick. For that reason, an UV silicone packer is fixed “wet in wet” with an UP-resin pre-impregnated GRP-Hat-Profile and an EP-resin on-site impregnated GRP-Hat-Profile and cured in only eight minutes. Thus, economically, the system is second to none.

After preparing the undercoat in the diversion area in the rehabilitated or non-rehabilitated main pipe, the UV packer system is positioned and the highly flexible GRP-Double-Hat-Profile is optimally pressed with only 

about 0.5 bar (7.25 psi) of pressure. 

With camera technology in front of and inside the UV silicone packer, the optimal fit of the brim and the shaft of the GRP-Double-Hat-Profile can be checked. The complete curing of the UP-Hat-Profile after 8 minutes exposure time thereby covers the underlying EPHat-
Profile, which provides maximum adhesion for bonding to the old pipe. The two-component-resin SAERTEX® multiHat EP15 also cures through the temperature evolution of the UV-packer at a maximum laminate temperature of 60 °C – 70 °C (140 °F – 158 °F).


Due to the innovative design of the SAERTEX® multiHat combi (GRP-Hat-Profile), a tight and wrinkle-free adaptation to the pipe and the diversion can be achieved in a safe and quick installation.

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  • 100% leak-proof through UP- / EP-fibreglass - multi-compound (1000 h test)

  • High quality materials: ECR fibreglass with UP and EP system

  • Fastest possible cure in a maximum of 8 min and maximum adhesion to the substrate

  • High flexibility in the 90° connecting piece and 45° branch

  • Main pipe widths from DN 200 (7.87 in) to DN 600 (23.62 in)

  • Branch widths from DN 100 (3.93 in) to DN 200 (7.87 in)

Scope of Delivery

The delivery of the SAERTEX® multiHat combi system includes:

  • SAERTEX® multiHat UP (GRP-Hat-Profile pre-impregnated with UP resin)
  • SAERTEX® multiHat basic (GRP-Hat-Profile, dry in impregnation foil)
  • SAERTEX® multiHat EP 15 (two-component EP resin container). The pre-portioned components (A : B)
  • are easily, safely and quickly mixed for 1 kg (2.20 lb) of total mixture.

Ergebnis SAERTEX multiHat combiLieferumfangHutrpofile - Trockenware in verschiedenen Ausführungen (Beispiel)Bestückung Packer HutprofilBestückung Packer HutprofilBestückung Packer Hutprofil
Ergebnis SAERTEX multiHat combi

Saerbeck, 05th January 2018


In early October, more than 20 visitors from local authorities, engineering firms, and associations from northern Emsland right through to the south of the Ruhr district braved the autumnal weather, with its storms and torrential rain: They accepted an invitation from SAERTEX multiCom GmbH and took the opportunity to find out more about the installation of shaft liners at first hand at the first “SF shaft-liner showcase”-


Saerbeck, 22 December 2017


Shortly before the end of the year, the 60,000th (produced at the Saerbeck plant)  SAERTEX-LINER ran from the production line. Reason enough for the SAERTEX multiCom team in Saerbeck to meet before the holidays for a group photo on the training facility in order to document this success.


Saerbeck, 04 December 2017


Viva con Agua de Sankt Pauli e.V. is a charitable association that is committed to ensuring that everyone around the world has access to clean DRINKING WATER. To achieve this goal, we are once again sponsoring a water project in the Chitwan region of Nepal this year and donating EUR 5,000 instead of...


Saerbeck, November 2017

7th Saerbeck Pipe Symposium: A complete success!

 The end of September, we opened the doors to our 7th Saerbeck Pipe Symposium in this, the twentieth year of our company’s history under the best weather conditions, and we are now finishing off the follow-up work. There is only one thing to say: The event under the title: “Trenchless pipe rehabilitation: sustainable – economical – innovative!” as a complete success! And many thanks to our team who prepared and supported this unforgettable event!


Saerbeck, 19th October 2017

New production and warehouse facility for SAERTEX multiCom

The construction work began early October on a new warehouse and production facility for SAERTEX multiCom at the site in Saerbeck. The project involves the installation of additional new production systems to expand the capacity for GRP-liners at the facility, which covers a surface area of  4,500 m2. The field of house connection liners (HASE) is being expanded with new areas, especially for the packaging, the impregnation, and the storage of the new light-cured liner.


Saerbeck, 25th September 2017

May we introduce...
Stephan Raab who is taking over responsibility for sales management in Europe and Africa at SAERTEX multiCom

On September 1 2017, Mr. Stephan Raab took on the position of Sales Manager for Europe and Africa at the international GRP liner manufacturer SAERTEX multiCom.


Saerbeck / Stavanger, 14 Juni 2017

Unique worldwide: Tab connection succeful installed to a rehabilitated potable water pipe!

Today, together with the company Hawle Water Technology Norge, we have achieved THE breakthrough and installed a tab connection to a potable water pipe, which has been trenchless rehabilitated using the SAERTEX-LINER H2O.


Saerbeck, May 2017

Organizational Change: Dipl.-Ing. Roland Hahn

Dear Friends and Partners

Our colleague Roland Hahn has decided to accept a new challenge as a partner in a consulting office in our industry. His new working environment will be closer to his home city and requests less travel. Therefore Roland Hahn is leaving SAERTEX multiCom at his own request as of June 30, 2017. 


Wloclawek, April 2017

A customized one-of-a-kind solution: Trenchless egg-shaped section helps rehabilitate a main sewer

The unique project to rehabilitate the sewage system in the agglomeration of Włocławek began in January 2016 when a contract was signed between the supplier F.H.I. “Instbud Stanislaw Boguta” and the Polish city of Włocławek following an open tender. The aim of the project was to develop a complex rehabilitation concept and carry out the planned rehabilitation work in expert fashion.


Saerbeck / Berlin, March 2017

Technology and research in practice: rehabilitating a DN 225 potable water pipeline with SAERTEX-LINER® H2O on Schöneberger Ufer for WASSER BERLIN INTERNATIONAL trade fair.

Subtitled “Technology and research in practice,” the exhibition “Experience Water” will be held on March 30, 2017, as part of the WASSER BERLIN INTERNATIONAL trade fair. Visitors from around the world will get an insight into innovative pipeline construction methods. 


Saerbeck, February 2017

Trenchless rehabilitation of a mouth-shaped sewer: a special project for the 50,000th SAERTEX-LINER®

In the past year, we not only celebrated the 20th anniversary of SAERTEX multiCom®, but also the production of the 50,000th SAERTEX-LINER® for the trenchless rehabilitation of pipes at our location in Saerbeck in the region of Münster, Germany.


Read all news items here

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