About MC-Bauchemie Konudur LM-Gewebe 1080

{“name”:”Konudur LM-Gewebe 1080″,”slug”:”mc-konudur-lm-gewebe-1080″,”brand”:”MC-Bauchemie”,”realProduct”:”yes”,”officialSource”:”https://www.mc-bauchemie.com/products/ombran-underground-sewer-systems/rehabilitation-of-non-accessible-sewers/konudur-lm-gewebe-1080.html”,”category”:”concrete-repair-rehabilitation”,”metaTitle”:”Konudur LM-Gewebe 1080 | No-Dig Sewer Liner | Space Arc”,”metaDescription”:”MC-Bauchemie Konudur LM-Gewebe 1080 is an E-CR glass fibre complex used to line and repair damaged sewer pipes via trenchless short-liner methods.”,”heroSubtitle”:”The E-CR glass fibre complex behind MC-Bauchemie’s trenchless short-liner and patch-liner repairs for underground sewer and drainage pipes.”,”glance”:{“whatIsIt”:”A roll-form E-CR (chemically corrosion-resistant) glass fibre complex — a directional glass fibre core bonded to a randomly oriented surface fleece — that is impregnated on site with a reaction resin and cured in place to form a rigid GRP patch inside a damaged pipe.”,”whereUsed”:”Non-accessible underground sewer and drainage pipework, storm-water culverts, industrial effluent lines and house-connection laterals repaired by no-dig (trenchless) short-liner or patch-liner methods, in place of open-cut excavation.”,”whyUse”:”Because digging up a buried, cracked, root-intruded or corroded pipe under a busy Delhi NCR road, campus or factory yard is disruptive and expensive; this fabric lets a trenchless rehabilitation crew patch the defect from inside the pipe without breaking the surface.”,”howApplied”:”Cut to the size of the defect with manual or electric scissors under weather-protected conditions, impregnated with MC-Bauchemie’s specified two-component reaction resin at roughly 1.6 l/m², then carried into position on a packer or inversion device and held against the pipe wall until the resin cures into a hard GRP liner.”},”technicalInsight”:”The name is a giveaway once you know the chemistry: Konudur LM-Gewebe 1080 is built from a glass fibre core of about 630 g/m² bonded to a randomly oriented glass fibre fleece of about 450 g/m² — the two layers together sum to roughly 1,080 g/m², which is where the product’s number comes from. That two-layer construction is deliberate. The oriented core carries most of the mechanical load once the fibre is resin-saturated and cured, while the random fleece improves wet-out during impregnation, helping resin migrate evenly through the mat instead of pooling or leaving dry pockets that would weaken the finished liner. Critically, the glass itself is E-CR (chemically/corrosion-resistant) grade rather than ordinary E-glass — sewer atmospheres are aggressive, with hydrogen sulphide gas converting to sulphuric acid on damp crown surfaces (biogenic corrosion) and attacking standard glass fibre and even concrete pipe walls over time. E-CR glass resists that acid attack far better, which is exactly why MC-Bauchemie’s ombran range specifies it for underground sewer rehabilitation rather than the AR-glass mesh used in cementitious waterproofing or render systems. Once resin-impregnated and cured, the fabric is not a fabric anymore — it becomes a rigid, corrosion-resistant GRP shell that locally restores the structural section of the pipe wall.”,”applications”:[“Short-liner (localized patch) repair of cracked, fractured or displaced-joint sections in non-accessible sewer pipes”,”Patch-liner rehabilitation of root-intruded or infiltrating sewer sections”,”Structural patching of storm-water and drainage culverts via robotic or packer insertion”,”Repair of industrial effluent and process-drain sections exposed to corrosive, acidic flow”,”Rehabilitation of house-connection laterals branching off a main sewer line”,”Spot repairs incorporated within a larger CIPP (cured-in-place pipe) full-length relining project”,”Manhole-to-manhole defect repair ahead of full pipe relining or as a standalone fix”,”Sewer defect repair beneath restricted-excavation corridors — busy roads, metro/utility crossings, institutional campuses”],”advantages”:[“Trenchless application avoids road cutting, traffic disruption and reinstatement cost of open excavation”,”E-CR glass composition resists hydrogen-sulphide-driven biogenic sulphuric acid attack far better than standard E-glass”,”Dual-layer construction (oriented core plus random fleece) balances mechanical strength with even resin wet-out”,”Targets only the damaged length of pipe, so resin and labour aren’t spent relining sound sections”,”Consistent factory roll format (approx. 1,270 mm width, approx. 54 kg rolls) simplifies on-site cutting and impregnation”,”Part of MC-Bauchemie’s proven ombran system, so fabric and reaction resin are engineered to work together”,”Minimum one-year shelf life when stored sealed between +5°C and +25°C in dry conditions suits project stocking”,”Reduces disruption to sensitive sites — hospitals, campuses, factories — where open-cut repair isn’t practical”],”limitations”:[“Not a DIY material — installation needs trained trenchless/CIPP crews with resin-impregnation and packer or inversion equipment”,”Performance depends entirely on correct resin selection and impregnation rate (approx. 1.6 l/m² guideline); MC-Bauchemie itself recommends site trials since the actual quantity varies with temperature and substrate”,”Built for localized short-liner or patch-liner repair, not a substitute for full pipe replacement where a sewer has collapsed or deformed heavily”,”Cutting and impregnation must be carried out in dry, weather-protected conditions before insertion”,”Cure and release timing follow MC-Bauchemie’s separate ‘General Application Advice for Short Liner Systems’ — deviating from it risks a weak or incompletely bonded liner”,”A specialist product with limited walk-in stockist availability compared to mainstream repair mortars; Space Arc typically project-stocks it against a confirmed rehabilitation order”],”bestPractice”:”Treat this strictly as a system component, not a standalone repair material — always read it alongside MC-Bauchemie’s ‘General Application Advice for Short Liner Systems’ before specifying or ordering. Cut the fabric slightly oversized to give a clean overlap margin around the actual defect, and do the cutting and resin impregnation under weather protection so the mat doesn’t pick up moisture or debris before insertion. Dose the reaction resin close to the approximately 1.6 l/m² guideline, but run a small trial batch first if site or substrate temperatures are unusually high or low, since resin uptake and cure time shift with both. Check the impregnated fabric for full, even saturation — any dry or air-trapped patch becomes a weak point in the cured liner — before it goes on the packer. Hold cure/release time to what the resin data sheet specifies rather than site schedule pressure, and keep unopened rolls sealed, dry, and between +5°C and +25°C so the fabric performs as tested when it’s finally used.”,”specs”:[{“property”:”Product type”,”value”:”E-CR glass fibre complex for short-liner / patch-liner sewer repair”},{“property”:”Basis weight — random-oriented fleece”,”value”:”approx. 450 g/m² (±5%)”},{“property”:”Basis weight — glass fibre core”,”value”:”approx. 630 g/m² (±5%)”},{“property”:”Basis weight — total complex”,”value”:”approx. 1,080 g/m² (±5%)”},{“property”:”Roll width”,”value”:”approx. 1,270 mm (±5%)”},{“property”:”Resin consumption (guideline)”,”value”:”approx. 1.6 l/m², site-trial dependent”},{“property”:”Colour”,”value”:”Transparent-white”},{“property”:”Form of delivery”,”value”:”Roll, approx. 54 kg”},{“property”:”Storage”,”value”:”Min. 1 year sealed, +5°C to +25°C, dry conditions (same for transport)”}],”useCases”:[{“sector”:”Municipal / civic infrastructure”,”detail”:”A city sewer rehabilitation contractor patches a cracked RCC sewer section under a busy Delhi NCR arterial road using a short-liner insertion, avoiding a full carriageway cut.”},{“sector”:”Industrial / process plants”,”detail”:”A chemical or pharma facility repairs a corroded effluent drain section inside its ETP line during a planned shutdown, choosing a trenchless patch over digging through operational floor slabs.”},{“sector”:”Residential townships”,”detail”:”A trenchless specialist fixes a root-intruded house-connection lateral beneath a landscaped or paved area without disturbing residents or hardscaping.”},{“sector”:”PWD / storm-water management”,”detail”:”A storm-water culvert defect flagged during routine CCTV pipe inspection is spot-repaired with a short liner rather than scheduled for a full relining contract.”},{“sector”:”Institutional campuses”,”detail”:”A hospital or educational campus repairs a damaged sewer lateral running beneath a parking area or building footprint where excavation would disrupt operations.”}],”faq”:[{“q”:”What does the ‘1080’ in the product name actually mean?”,”a”:”It’s the approximate total basis weight of the fabric complex in g/m² — roughly 630 g/m² glass fibre core plus 450 g/m² random fleece, adding up to about 1,080 g/m².”},{“q”:”Does this fabric work on its own, or does it need a resin?”,”a”:”It needs a resin. On its own it’s just dry glass fibre — it only becomes a structural liner once impregnated with MC-Bauchemie’s specified reaction resin (roughly 1.6 l/m²) and cured in place.”},{“q”:”Is this a full pipe-length liner or just a patch material?”,”a”:”It’s a short-liner / patch-liner product for localized defect repair, not a full-length CIPP liner. For repairing an entire pipe run, MC-Bauchemie’s other ombran/Konudur liner systems apply.”},{“q”:”Does Space Arc carry out the installation, or only supply the material?”,”a”:”Space Arc supplies the fabric and can connect clients to qualified trenchless rehabilitation crews; the actual resin impregnation and packer/inversion installation needs trained specialist applicators, not general contractors.”},{“q”:”What pipe materials and sizes is it suitable for?”,”a”:”It’s used on non-accessible sewer and drainage pipework in various materials — RCC, vitrified clay, PVC and similar — but the exact diameter range and defect size for a given job should be checked against MC-Bauchemie’s General Application Advice for short-liner systems.”},{“q”:”How is this different from the glass fibre mesh used in waterproofing or plaster work?”,”a”:”Standard reinforcement mesh used with cementitious coatings is alkali-resistant (AR) glass for compatibility with cement. This is E-CR (corrosion-resistant) glass, engineered specifically to be resin-impregnated into a rigid GRP liner that survives sewer-gas and acid exposure.”}],”positioning”:”Within MC-Bauchemie’s own range, Konudur LM-Gewebe 1080 sits alongside the heavier Konudur LM-Gewebe 1400 (for larger defects needing more build-up), the Konudur 250 OM-PL Winterharz reaction resin it’s typically impregnated with, and Konudur Flexfit for manhole and accessible-structure rehabilitation — all part of the ombran underground sewer systems family, and all governed by the same General Application Advice for Short Liner Systems datasheet that specifiers should read before ordering. Positioned against Space Arc’s broader repair portfolio, it’s a distinct category from general-purpose structural repair mortars: those rebuild concrete sections above ground or in accessible structures, while this fabric is purpose-built for trenchless, no-dig repair inside buried, non-accessible pipework. There is no genuine Fosroc equivalent to point specifiers toward — Fosroc’s Renderoc, Nitomortar and related ranges address concrete repair, waterproofing and flooring, not resin-impregnated GRP short-liner fabric for sewer rehabilitation — so anyone evaluating trenchless pipe-lining options should compare within dedicated CIPP/GRP liner suppliers rather than a general repair-mortar catalogue.”

The technical insight

The name is a giveaway once you know the chemistry: Konudur LM-Gewebe 1080 is built from a glass fibre core of about 630 g/m² bonded to a randomly oriented glass fibre fleece of about 450 g/m² — the two layers together sum to roughly 1,080 g/m², which is where the product’s number comes from. That two-layer construction is deliberate. The oriented core carries most of the mechanical load once the fibre is resin-saturated and cured, while the random fleece improves wet-out during impregnation, helping resin migrate evenly through the mat instead of pooling or leaving dry pockets that would weaken the finished liner. Critically, the glass itself is E-CR (chemically/corrosion-resistant) grade rather than ordinary E-glass — sewer atmospheres are aggressive, with hydrogen sulphide gas converting to sulphuric acid on damp crown surfaces (biogenic corrosion) and attacking standard glass fibre and even concrete pipe walls over time. E-CR glass resists that acid attack far better, which is why MC-Bauchemie’s ombran range specifies it for underground sewer rehabilitation rather than the AR-glass mesh used in cementitious waterproofing or render systems. Once resin-impregnated and cured, the fabric is not a fabric anymore — it becomes a rigid, corrosion-resistant GRP shell that locally restores the structural section of the pipe wall.

Where it is used

• Short-liner (localized patch) repair of cracked, fractured or displaced-joint sections in non-accessible sewer pipes
• Patch-liner rehabilitation of root-intruded or infiltrating sewer sections
• Structural patching of storm-water and drainage culverts via robotic or packer insertion
• Repair of industrial effluent and process-drain sections exposed to corrosive, acidic flow
• Rehabilitation of house-connection laterals branching off a main sewer line
• Spot repairs incorporated within a larger CIPP (cured-in-place pipe) full-length relining project
• Manhole-to-manhole defect repair ahead of full pipe relining or as a standalone fix
• Sewer defect repair beneath restricted-excavation corridors — busy roads, metro/utility crossings, institutional campuses

Key advantages

• Trenchless application avoids road cutting, traffic disruption and reinstatement cost of open excavation
• E-CR glass composition resists hydrogen-sulphide-driven biogenic sulphuric acid attack far better than standard E-glass
• Dual-layer construction (oriented core plus random fleece) balances mechanical strength with even resin wet-out
• Targets only the damaged length of pipe, so resin and labour aren’t spent relining sound sections
• Consistent factory roll format (approx. 1,270 mm width, approx. 54 kg rolls) simplifies on-site cutting and impregnation
• Part of MC-Bauchemie’s proven ombran system, so fabric and reaction resin are engineered to work together
• Minimum one-year shelf life when stored sealed between +5°C and +25°C in dry conditions suits project stocking
• Reduces disruption to sensitive sites — hospitals, campuses, factories — where open-cut repair isn’t practical

Limitations & considerations

• Not a DIY material — installation needs trained trenchless/CIPP crews with resin-impregnation and packer or inversion equipment
• Performance depends entirely on correct resin selection and impregnation rate (approx. 1.6 l/m² guideline); MC-Bauchemie itself recommends site trials since the actual quantity varies with temperature and substrate
• Built for localized short-liner or patch-liner repair, not a substitute for full pipe replacement where a sewer has collapsed or deformed heavily
• Cutting and impregnation must be carried out in dry, weather-protected conditions before insertion
• Cure and release timing follow MC-Bauchemie’s separate ‘General Application Advice for Short Liner Systems’ — deviating from it risks a weak or incompletely bonded liner
• A specialist product with limited walk-in stockist availability compared to mainstream repair mortars; Space Arc typically project-stocks it against a confirmed rehabilitation order

Selection & best practice

Specifications

Industry use cases

How we position MC-Bauchemie Konudur LM-Gewebe 1080

Within MC-Bauchemie’s own range, Konudur LM-Gewebe 1080 sits alongside the heavier Konudur LM-Gewebe 1400 (for larger defects needing more build-up), the Konudur 250 OM-PL Winterharz reaction resin it’s typically impregnated with, and Konudur Flexfit for manhole and accessible-structure rehabilitation — all part of the ombran underground sewer systems family, and all governed by the same General Application Advice for Short Liner Systems datasheet that specifiers should read before ordering. Positioned against Space Arc’s broader repair portfolio, it’s a distinct category from general-purpose structural repair mortars: those rebuild concrete sections above ground or in accessible structures, while this fabric is purpose-built for trenchless, no-dig repair inside buried, non-accessible pipework. There is no genuine Fosroc equivalent to point specifiers toward — Fosroc’s Renderoc, Nitomortar and related ranges address concrete repair, waterproofing and flooring, not resin-impregnated GRP short-liner fabric for sewer rehabilitation — so anyone evaluating trenchless pipe-lining options should compare within dedicated CIPP/GRP liner suppliers rather than a general repair-mortar catalogue.

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