MC-Bauchemie Konudur 160 PL-XL
The two-component epoxy resin that saturates CIPP felt liners for trenchless, no-dig rehabilitation of sewers and drains.
What is it?
A low-viscosity, unfilled two-component epoxy resin from MC-Bauchemie’s OMBRAN range: Component A is a yellow-pigmented base resin, Component B the hardener, engineered to impregnate polyester needle-felt CIPP liner tubes.
Where is it used?
Rehabilitation of defective house connection pipes, drainage laterals and smaller-diameter main sewers by the Cured-In-Place Pipe (CIPP) method, without excavating the road or plot above.
Why use it?
It wets the felt liner deeply and evenly, gives crews a workable window before gelling, then cures cold or with heat acceleration to build a structural new pipe wall inside the failing one — under DIBt approval Z-42.3-396 (Konudur Homeliner).
How is it applied?
Component A and B are machine-mixed only (mechanical stirrer ~300-400 rpm or static mixer), drawn into the felt tube under vacuum, then the saturated liner is pulled or inverted into the host pipe and cured cold or with heat per the curing schedule, monitored by sensors at the start, middle and end of the run.
About MC-Bauchemie Konudur 160 PL-XL
CIPP lining exists because digging up a road to replace a cracked or root-intruded sewer is disruptive and, in dense Indian cities, often not practical. A felt tube is soaked in resin, pulled or inverted into the damaged pipe, and cured in place, effectively building a new pipe inside the old one. Konudur 160 PL-XL is the resin that makes that felt tube structural. It sits within MC-Bauchemie’s OMBRAN range alongside sister grades such as Konudur 170 TR, Konudur 170 TR-NA, Konudur 170 TL-NV, Konudur HL 11 PVC/PP and Konudur Flexfit, each tuned for a different pipe diameter, cure profile or liner chemistry, so a specifier picks the variant that matches the job rather than treating “epoxy resin” as one commodity.
For Space Arc this is a specialist, project-driven line rather than a shelf item — it moves through trenchless rehabilitation contractors, municipal sewer-upgradation programmes and industrial effluent-line owners rather than general waterproofing crews. As an authorised MC-Bauchemie distributor and applicator across Delhi NCR and pan-India, we supply Konudur 160 PL-XL against a defined pipe diameter, host-pipe condition and curing method, and coordinate with MC-Bauchemie’s technical team on dosing and heating schedules, because CIPP performance depends as much on correct site execution as on the resin itself.
The technical insight
The chemistry choice matters. An unfilled, low-viscosity system (~3000 mPa·s dynamic viscosity for Component A at 20°C) lets resin penetrate a dense polyester felt tube through its full thickness instead of skinning the surface — a partially wetted liner loses strength and cures unevenly, exactly the defect CIPP inspection protocols are built to catch. The dual cure path (cold-curing for standard jobs, heat-accelerated curing where a diversion has to reopen fast) lets contractors trade programme speed against equipment cost. And because processing and cure times roughly halve or double with every 10°C swing in ambient temperature, the same resin behaves differently on a February morning versus a June afternoon in Delhi — which is why MC-Bauchemie ties it to a formal structural design method (DWA-A 143-2) and a DIBt-tested approval rather than site guesswork.
Where it is used
- Trenchless CIPP relining of house/lateral sewer connections
- Rehabilitation of smaller-diameter municipal sewer mains without excavation
- Impregnation of polyester needle-felt liner tubes before inversion or pull-in installation
- Structural relining of non-accessible underground ducts and drainage conduits
- Manhole-to-manhole no-dig relining in congested urban stretches
- Corrosion-resistant lining of sewers carrying aggressive industrial effluent
- Root-intrusion repair via full structural liner reinstatement
Key advantages
- Low viscosity drives deep, void-free saturation of the felt liner, even in cooler weather
- Extended working time lets crews impregnate the full liner length before it starts to set
- Dual cure — cold-curing as standard, heat-accelerated curing to compress programme on live diversions
- Strong adhesion to concrete, brick and ceramic host-pipe substrates
- Accepts dry or damp substrates, matching real sewer conditions
- Backed by independent DIBt general building approval Z-42.3-396, not just a manufacturer claim
- Trenchless application skips road-cutting, traffic diversion and reinstatement costs
- Yellow pigmentation lets applicators visually check the felt tube has been impregnated evenly
Limitations & considerations
- A specialist CIPP/trenchless-relining resin, not a general concrete or masonry patch-repair mortar
- Mixing is machine-only; hand-mixing is explicitly ruled out by the manufacturer, so untrained crews aren’t an option
- Needs dedicated CIPP equipment (vacuum impregnation, winching/inversion rigs, curing trains) — contractor-grade, not DIY
- Component A carries irritant, sensitiser and reproductive-toxicity (H360F) hazard classifications, so PPE and BGBau-style handling discipline are mandatory
- Full chemical and mechanical strength develops over time; sampling is recommended no earlier than 7 days, ideally 28
- Working and cure times are strongly temperature-dependent, so scheduling must account for site conditions
Selection & best practice
Treat this as an engineered system, not a bucket of resin. Confirm host-pipe diameter, condition and dryness before ordering; machine-mix Components A and B to full homogeneity including the corners of the vessel; re-pot and briefly re-mix before impregnation; and vacuum-saturate the felt tube fully — the yellow pigmentation exists precisely so crews can spot incomplete wet-out. Log temperature sensors at the start, middle and end of every cure run, follow DWA-A 143-2 for the structural design basis and DIBt approval Z-42.3-396 for the system parameters, and pull test samples only after the minimum 7-day (preferably 28-day) cure before certifying the line back into service.
Specifications
| Chemistry / system | Two-component, unfilled, low-viscosity epoxy resin (Component A base + Component B hardener) |
| Colour (Component A) | Yellow |
| Physical form | Fluid liquid |
| Density, Component A @ 20°C | 1.15 g/cm³ |
| Dynamic viscosity, Component A @ 20°C | 3000 mPa·s |
| Flash point, Component A | ≥ 61°C |
| Cure mechanism | Cold-curing or warm/heat-accelerated curing (project-dependent) |
| Mixing method | Mechanical stirrer ~300–400 rpm or static mixer; hand-mixing not permitted |
| Approval | DIBt General Building Inspection Test Report Z-42.3-396 (Konudur Homeliner CIPP system, Germany) |
Industry use cases
Municipal / urban infrastructure
Relining a corroded house-connection sewer beneath a live arterial road, avoiding a multi-day cut-and-cover closure.
Housing societies / real estate
Rehabilitating an ageing drainage lateral inside a Delhi NCR residential complex where excavation would tear up landscaping and parking.
Industrial plants
Lining an effluent duct corroded by aggressive discharge, without a full process-line shutdown.
Municipal corporation / PWD contracts
No-dig rehabilitation of smaller-diameter main sewer stretches under a city sewer renewal programme.
Trenchless specialist contractors
Supplied as the impregnation resin against a defined CIPP scope, with Space Arc coordinating quantities and cure guidance to the applicator’s schedule.
Frequently asked questions
Is this a repair mortar we can use to patch a cracked slab or wall?
Can our regular waterproofing crew apply this?
Does the host pipe need to be completely dry first?
How is the structural performance of a finished liner verified?
What safety precautions does the resin need on site?
Does Space Arc supply this, apply it, or both?
How we position MC-Bauchemie Konudur 160 PL-XL
Within MC-Bauchemie’s OMBRAN range, Konudur 160 PL-XL sits alongside Konudur 170 TR, 170 TR-NA, 170 TL-NV, HL 11 PVC/PP and Flexfit — the right grade depends on pipe diameter, host material and how fast the diversion needs to reopen, so it’s worth a quick technical conversation before ordering. For general concrete or masonry repair on the same site, Space Arc’s MC-Bauchemie Nafufill and Emcekrete ranges are the correct call, not this product. We haven’t found a genuine Fosroc equivalent to name here: Fosroc’s Indian portfolio is strong on waterproofing, flooring and repair mortars, but it doesn’t carry a directly comparable CIPP felt-liner impregnation resin, so a trenchless contractor comparing alternatives would typically look at other pipe-relining resin specialists rather than a mainstream repair-mortar brand.
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