MC-Bauchemie Konudur 170 TL-NV
MC-Bauchemie’s specialist wet-out resin for CIPP sewer liners, built for full saturation, long working time, and a fast, shrinkage-free cure once installed.
What is it?
A two-component, thermo-reactive (warm-curing) epoxy resin engineered to impregnate CIPP liners for trenchless sewer and drain rehabilitation.
Where is it used?
Non-accessible sewer and stormwater pipelines, culverts and drainage ducts, wherever a damaged pipe run needs structural relining without excavation.
Why use it?
Low viscosity gives thorough liner saturation, long pot life gives installers a safe working window, and rapid shrinkage-free warm-cure delivers a strong, watertight new pipe within the old one.
How is it applied?
Metered and mixed in a wet-out rig, impregnated into the liner hose, then the liner is inverted or pulled into the host pipe and cured before the ends are cut and reinstated.
About MC-Bauchemie Konudur 170 TL-NV
Konudur 170 TL-NV sits in a different corner of MC-Bauchemie’s catalogue than the waterproofing coatings and repair mortars most Indian specifiers associate with the brand. It is a two-component, thermo-reactive epoxy resin built for the Ombran and Konudur underground sewer system range, MC-Bauchemie’s business for trenchless rehabilitation of buried drainage and sewerage networks. Rather than being trowelled or sprayed onto a surface, this resin is machine-metered into a wet-out rig and used to saturate a needle-felt or glass-fibre liner hose, which is then inverted or pulled into a damaged pipe and cured in place, the CIPP (Cured-In-Place-Pipe) method that has become the standard no-dig alternative to excavating and replacing failed sewer runs.
What sets the TL-NV variant apart within the Konudur 170 family, which also includes the TR, TR-NA and BT grades, is its balance of a long pot life against rapid, shrinkage-free hardening once curing is triggered. That matters practically: impregnation and installation on a live sewer run can take longer than expected, so installers need working time on the mixed resin before it goes into the pipe, and a quick, dependable cure once it’s in position so the network can be reinstated. MC-Bauchemie references its use on a several-hundred-metre coastal sewer rehabilitation in Jersey, where the resin impregnated DN 375 liners over a two-week programme without disrupting the seafront promenade above.
The technical insight
Two details matter before specifying this resin. First, thermo-reactive or warm-curing means final strength development is temperature-dependent, so the installer’s curing cycle (steam, hot water or UV) must match what the resin needs, not just what’s convenient on site. Second, MC-Bauchemie states compatibility with dry and damp mineral or metallic substrates, which matters because very few live sewer pipes are ever completely dry. The product is formulated as a CIPP resin referenced against EN ISO 11296-4, the European and ISO standard for lining underground non-pressure drainage and sewerage networks with cured-in-place pipes, giving specifiers a recognised benchmark even on Indian projects that lack a dedicated domestic CIPP standard.
Where it is used
- Impregnation (wet-out) of needle-felt and glass-fibre CIPP liner hoses before insertion into a damaged pipe
- Trenchless rehabilitation of non-accessible sewer and drainage pipelines under roads, footpaths or built-up areas
- Structural relining of buried stormwater and combined sewer networks where excavation is impractical
- Rehabilitation of sewer runs beneath sensitive surface infrastructure such as promenades, coastal roads and live traffic corridors
- Culvert and drainage duct renewal for municipal and industrial underground infrastructure
- Relining of pipe runs with concrete, brick, ceramic or metallic host substrates in damp or dry condition
- Point-to-point sewer main renewal within MC-Bauchemie’s broader Ombran and Konudur system
Key advantages
- Low viscosity gives thorough, void-minimising saturation of the liner felt, critical for a defect-free finished pipe wall
- Long pot life gives crews a realistic working window to wet-out and install longer liner lengths
- Rapid, shrinkage-free hardening once cured means less network downtime
- Warm-curing chemistry develops high strength, supporting structural, not just barrier, performance
- Bonds to both dry and damp mineral or metallic host-pipe surfaces, matching real sewer site conditions
- Resists the mechanical abrasion and biochemical attack typical of sewer environments
- Trenchless application avoids open-cut excavation, meaning less disruption to roads and traffic, as demonstrated on live coastal infrastructure projects
Limitations & considerations
- A specialist trenchless-rehabilitation resin, not a shelf-stock repair mortar; it is used by CIPP liner contractors, not applied directly by a site mason
- Needs dedicated wet-out and installation equipment (impregnation rig, calibration hose and curing setup); it cannot be hand-mixed and trowelled
- Cure performance is temperature-dependent; the curing cycle must be matched correctly or design strength will not be achieved as intended
- As a two-component epoxy, precise mixing ratio and full mechanical blending are essential; site batching errors compromise the cured liner
- Sits outside MC-Bauchemie India’s typical retail range, so sourcing for an Indian project should be planned as a coordinated technical-supply exercise well ahead of installation
- Exact numeric values such as viscosity, density and pot-life duration are project- and batch-specific; always work from the current manufacturer TDS
Selection & best practice
Treat Konudur 170 TL-NV as part of a system decision, not a standalone purchase. Confirm liner type, diameter and length with your CIPP contractor first, since resin dosage is calculated against the liner’s dry weight, not guessed on site. Insist on machine-metered mixing and a documented wet-out record for every batch; colour consistency is a quick site check for saturation quality. Match the curing method to what the resin is designed for, and never compress the cure cycle to save programme time. For any Indian project, loop in Space Arc and MC-Bauchemie’s underground-systems team early so pack quantities, lead time and the correct grade for your site conditions are locked in before liner fabrication begins.
Specifications
| Chemistry / System | Two-component, thermo-reactive (warm-curing) epoxy resin |
| Viscosity | Low-viscosity grade, formulated for thorough liner/felt saturation |
| Colour | Light-blue pigmented resin (aids visual saturation check on site) |
| Reference Standard | Formulated as a CIPP resin referenced against EN ISO 11296-4 (lining of underground non-pressure drainage and sewerage networks with cured-in-place pipes) |
| Substrate Compatibility | Dry and damp mineral or metallic pipe substrates (concrete, brick, ceramic, cast-iron/steel) |
| Curing Behaviour | Long pot life for wet-out and liner installation, followed by rapid, shrinkage-free warm-cure hardening |
| Typical Application Diameter | Liner impregnation referenced at DN 375 in MC-Bauchemie field projects; actual diameter range depends on liner selection |
| Regulatory Documentation | REACH-assessed exposure scenarios published for long-term water contact, periodic inhalation and application handling |
| Supply Format | Two-component resin + hardener system; pack quantities matched to the project’s liner dry-felt weight and length per manufacturer order |
Industry use cases
Municipal Water and Sewerage Boards
Trenchless renewal of ageing brick or RCC sewer trunk mains under live urban roads, avoiding disruptive excavation and traffic closures.
Coastal and Tourism Infrastructure
Rehabilitation of sewer networks beneath promenades and seafront roads, as in MC-Bauchemie’s Jersey reference project impregnating DN 375 liners over a two-week programme.
Industrial and Process Plants
Relining of underground effluent and process drainage pipework exposed to sustained biochemical and mechanical attack.
Smart City and Utility Corridor Projects
Non-disruptive rehabilitation of storm-water and combined sewer ducts beneath dense underground utility corridors.
Airports, Ports and Rail Infrastructure
Culvert and drainage duct renewal where surface operations cannot be interrupted for conventional open-cut repair.
Frequently asked questions
What does Konudur 170 TL-NV do?
Can Space Arc supply this for a project in India?
Do we need special machinery to use it, or can our site team mix it like a repair mortar?
Our sewer lines are rarely bone-dry before rehabilitation, will that be a problem?
How does it resist sewer gas and chemical attack?
Is there an Indian standard we can reference for approval?
How we position MC-Bauchemie Konudur 170 TL-NV
Within MC-Bauchemie’s range, Konudur 170 TL-NV sits alongside the Konudur 170 TR and TR-NA grades, room-temperature-oriented variants for different site conditions, and Konudur 170 BT, plus adjacent products like Konudur Flexfit for manhole-to-liner connections and Konudur Robopox for robotic point repairs; the right grade depends on liner diameter, access and curing method available. Fosroc, despite being the most commonly benchmarked alternative brand across Space Arc’s wider repair and waterproofing range, does not carry a direct CIPP liner-impregnation resin in its mainstream India portfolio; specifiers typically compare other trenchless-specific resin suppliers instead. For most Indian CIPP projects, the practical comparison is between Konudur 170 grades themselves, selected against site conditions rather than against a general-purpose repair product.
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