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Become a BRAWOLINER® Installer

BRAWOLINER® is a division of the Karl Otto Braun GmbH & Co. KG (KOB).

The parent company KOB was founded in 1903. Today KOB is the world's leader in the manufacturing of special elastic fabrics used for medical and technical purposes. The company has a workforce of about 650 employees and production facilities of over 90,000 square meters.

Inspired by a case of damage in their own production line, KOB developed the first flexible textile seamless liner that enables the rehabilitation of pipes with bends up to 90° and can change in 2 different dimensional changes by using a special liner.

Specialising in small diameter pipes, BRAWOLINER® has become one of the leading system suppliers in the drain and sewer renovation industry. Beside the consumable liner and resin, the company also provides appropriate installation equipment and purpose-built, fully equipped vehicles and trailers.

Continuous research and innovation in the in-house research center enables us to consistently provide products that are used worldwide. A modern and vertically integrated production facility ensures complete control over all aspects of manufacturing. Well trained, efficient and qualified staff provides quality assurance of the highest standards.

Quality plays a significant role in the sewer rehabilitation. As the pipes in the ground are difficult to control, it is important to choose long-lasting and high-quality materials. 

BRAWOLINER® follows the strict quality assurance standards of the medical industry. The KOB quality control department employs qualified staff and the necessary equipment to carry out all technical and chemical tests with ultimate professionalism. Constant quality assurance checks before, during and after production coupled with comprehensive documentation of the material properties guarantee consistently high product quality. For quality assurance purposes all products are clearly marked with batch numbers which allows all test results to be traced for many years after production.

As the first liner system BRAWOLINER® reveived the DIBt approval for the rehabilitation of small dimension sewerage systems in 2004. Today BRAWOLINER® is DIBt-approved for the renovation of underground pipes (permit number: Z-42.3-362) and of pipes laid inside buildings (permit number: DIBt Z-42.3-499). BRAWOLINER® renovation products also conform to various international standards (such as QUiK, kiwa and WRC CP308), while fulfilling the requirements of BS EN ISO 11296-4:2011. Furthermore it passed the Thames Water Infiltration Test.


DIBt and Thames Water approved

BRAWOLINER® stands for quality Liner, resin and equipment for the highest demands

From a problem to the market leader...

Homeowners are facing a challenge if the tightness of the pipes is required by law or deomestic provisions. To prove the condition of their drainage system a qualified dense test is required. In most countries the total length of the private and industrial drainage system is much greater than the public sewage system. According to investigations in various regions most of the domestic drainages are old and many pipes are damaged.


The Problems 

Exfiltration: Through defective pipes, wastewater can enter into the ground. The discharge of pollutants into the ground is illegal and contamination of soil and groundwater must be avoided.

Infiltration: If clean groundwater and rainwater enters faulty sewage pipes, it must be cleaned at the treatment plant as well and thus leads to the significant increase in sewage charges.


BRAWOLINER® HT has been specially developed for domestic rehabilitation.
It consists of the BRAWOLINER® HT liners and the special formulated BRAWO® HT-resin. Together with normal flammability German building materials class B2 and the dimensional stability under heat of over 93 °C the HT system offers the same advantages as the tried-and-tested BRAWOLINER® rehabilitation:

  • Complete rehabilitation from DN 50 to DN 300
  • Suitable for almost all damage profiles and all pipe materials
  • Up to 50% cheaper than the open construction method
  • Life expectancy of over 50 years

BRAWOLINER® offers a complete system for quick, cheap and long-lasting repairs of leaking lateral junctions and connections.

BRAWO® Packer with lateral bladder

custom-fit and tight-fitting “Full Wrap Top-Hat Profile” 

Tried and tested BRAWO® epoxy resin
- optimum bonding with existing pipes
- no restriction to flows
- appropriate mechanical properties
- high durability against chemicals



BRAWOLINER® - The solution for defective pipes
Fast, cost-efficient and durably leak-free


The BRAWOLINER®-process is a no dig rehabilitation solution. Excavation work or uncovering the faulty pipes is not necessary. This saves not only time but money.

The BRAWOLINER®-process was developed specifically for the rehabilitation of pipes in diameters from DN 50 to DN 250 and offers many advantages compared to traditional remediation:

  • Rapid Rehabilitation without excavation, dirt and noise
  • Up to 50% cheaper than open construction
  • Suitable for almost all damage and all pipe materials
  • Durability of over 50 years

Step 1


Step 2

Step 3

Step 4


Before the installation, the flexible BRAWOLINER® will be impregnated with epoxy resin and then inserted in the defective pipe by using air or water pressure.

BRAWOLINER® lines the pipe completely and eliminates all existing and potential damages.

Curing creates a completely new, watertight pipe within the old one.

The result is a completely new and dense tube in the old pipe with significantly better static properties.


The Solution

The BRAWOLINER® Rehabilitation is the ideal solution for defective drainage systems in private houses and large real estates, industrial plants, hospitals and gas stations... 

The trenchless rehabilitation allows a quick, reasonable and durable rehabilitation of pipes within buildings, buried pipes and pipe connections.


BRAWOLINER® Inhouse-rehabilitation

The solution for defective pipes inside buildings

Damp walls, musty smell and mould formation are common damages in buildings. The causes of this are often leaking drainage pipes from which wastewater escapes into the surrounding masonry.

The rehabilitation of wastewater pipes in buildings is subject to special requirements and strict structural rules.

The BRAWOLINER® HT rehabilitation system meets all structural requirements and has the exacting DIBt approval for the rehabilitation of drainage systems within buildings.


Providing solutions for long-lasting water tightness for lateral junctions and connections.

In terms of damage to drainage systems, defective junctions and connections have been at the top of the list of issues for decades. Damaged laterals are not just a problem for the older systems; incorrectly fitted junctions and connections can also be seen in new systems. Rehabilitation is generally required when the floor or walls show signs of damp or start to produce mould or saltpetre.

The repair of leaky connections is a big challenge. Improper fitting of the post lining, constriction of the materials during the cure process or a lack of resistance against aggressive sewage can all lead to the rehabilitated connections not being watertight. Indeed, improperly renovated “Top-Hat” connections have considerably contributed to the current experts' discussions about the quality of rehabilitation in sewerage systems.


BRAWOLINER® offers a complete system for quick, cheap and long-lasting repair of leaking lateral junctions and connections.

1. BRAWO® Packer with lateral bladder custom-fit and tight-fitting - “Full Wrap Top-Hat Profile”:

  • tried and tested BRAWO® epoxy resin
  • optimum bonding with existing pipes
  • no restriction to flows
  • appropriate mechanical properties
  • high durability against chemicals

2. BRAWO® SteamBox L, using steam to speed up the cure process

See the benefits for yourself!

Exactly like our proven BRAWOLINER® the XT liner also won the IKT product test in standard and in extreme situations. 

During the extensive functional check BRAWOLINER® XTreceived the best results in all assessment criterias (effectiveness, density and load-carrying capacity of the structure). 

Brawoliner pipe rehabilitation inside the pipe



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