About MC-Bauchemie Konudur LM-Gewebe 1400

Konudur LM-Gewebe 1400 is the glass-fibre reinforcement at the heart of MC-Bauchemie’s Konudur LM short-liner (Kurzliner) system — the resin-impregnated patch technology used to repair a defective section of buried sewer or storm-water pipe without breaking open the road above it. The “Gewebe” (German for fabric) is actually a two-ply complex: an approximately 800 g/m² woven glass fabric bonded to an approximately 600 g/m² random-fibre chopped-strand mat, both built from E-CR glass — the chemically and corrosion-resistant glass grade rather than ordinary E-glass — so the finished liner can sit in permanent contact with raw sewage, hydrogen sulphide gas and industrial effluent. Combined, the two layers give the roll its declared ~1,400 g/m² total areal weight, which is where the “1400” in the product name comes from.

On its own the fabric repairs nothing. It is cut to the surveyed defect size on site, saturated with a compatible MC-Bauchemie reaction resin (roughly 1.9 litres of resin per square metre per the technical data sheet), and carried into the pipe on a packer or short-liner carrier, where it cures against the host pipe wall to restore both structural strength and a smooth hydraulic bore. In the Indian market this is specialist, niche territory — CCTV-surveyed municipal underground drainage (UGD) rehabilitation, sewage treatment plant feeder lines, and utility crossings under roads, rail or metro corridors where excavation simply isn’t permitted. Space Arc sources it against confirmed project quantities for trenchless-rehabilitation contractors and water-board empanelled applicators across Delhi NCR, rather than holding it as a walk-in shelf item.

The technical insight

The product name is a spec sheet in itself. “E-CR” signals chemically and corrosion-resistant glass fibre — closer to boron-free, acid-resistant compositions than standard E-glass — the right choice for a material that will sit permanently inside a sewage pipe rather than in dry concrete. The construction pairs a woven roving fabric, which carries the hoop and longitudinal tensile load once cured, with a random-mat (chopped strand) layer, which improves resin wet-out and drapability around pipe curvature and irregular defect edges. That’s a combination borrowed from FRP composite practice rather than conventional repair-mortar chemistry — closer in logic to a pipe-relining laminate than to a patch compound. Because liner strength in short-liner systems is a function of laminate thickness and fibre content, the declared ~1,400 g/m² total areal weight (roughly 800 g/m² woven + 600 g/m² random mat) is the actual design parameter an engineer sizes the repair against, not a marketing figure — which is also why MC-Bauchemie names the product after it.

Where it is used

• Trenchless point/patch repair of fractured or displaced joints in non-man-entry sewer pipes
• Root-intrusion and localised crack repair in buried RCC, stoneware or PVC sewer lines
• Rehabilitation of storm-water drains and industrial process effluent ducts without excavation
• Pre-lining structural stabilisation of a deteriorated joint ahead of full-length CIPP main-line relining
• Repair of lateral and service-connection junctions on municipal sewer networks
• Utility duct repair under roads, rail alignments and metro corridors where open-cut is restricted
• STP and UGD feeder-line rehabilitation for municipal corporations and water boards
• Emergency restoration of hydraulic bore/capacity at a known, surveyed defect location

Key advantages

• E-CR glass construction gives genuine resistance to sewage chemistry, H2S gas and industrial effluent, not just standard E-glass durability
• Dual-layer build (woven fabric + random-fibre CSM mat) balances cured tensile strength with on-site resin drapability and wet-out around defect edges
• Trenchless installation avoids excavation, road cutting, traffic diversion and the risk of striking other buried utilities
• Declared ~1,400 g/m² total areal weight gives designers a fixed, repeatable basis for sizing liner thickness rather than a guess
• White fabric colour makes incomplete or patchy resin saturation visually obvious to the crew during quality checks
• 1,270 mm roll width and ~70 kg roll format are practical for on-site cutting to the varied defect lengths found in real pipe surveys
• Backed by MC-Bauchemie’s documented short-liner processing guidance rather than ad-hoc site improvisation
• 12-month shelf life in unopened packaging (5–25°C, dry storage) gives contractors ordering flexibility on phased rehabilitation projects

Limitations & considerations

• The fabric alone repairs nothing — it must be correctly impregnated with a matched Konudur LM reaction resin, and the outcome depends heavily on that impregnation and cure step
• Installation requires trenchless/CIPP-trained crews with packer or inversion equipment; a standard civil or waterproofing contractor cannot self-install this
• Resin consumption (~1.9 l/m²) is stated as object-specific and indicative only — a site trial batch is needed before firming up resin order quantities
• As an imported specialist roll good it’s typically ordered against confirmed project volumes rather than kept as walk-in stock, so lead time needs planning ahead
• Cutting and handling must be weather-protected, and incorrect storage temperature or site mishandling can compromise resin uptake and cure quality
• This is a point/short-liner repair product, not a substitute for full-length CIPP lining where an entire pipe run has deteriorated

Selection & best practice

Specifications

Industry use cases

How we position MC-Bauchemie Konudur LM-Gewebe 1400

Konudur LM-Gewebe 1400 only makes full sense alongside its partner Konudur LM reaction resin from the same MC-Bauchemie system — specify and order the two together rather than sourcing the fabric alone. It sits within MC-Bauchemie’s broader “ombran” underground sewer systems range, which also covers man-entry manhole and chamber rehabilitation mortars for the accessible side of the same network, so a single sewer rehabilitation project may draw on both product lines. There isn’t a genuine Fosroc equivalent worth naming here: Fosroc’s India range (Renderoc, Nitomortar, Conbextra and similar) is built around surface-applied concrete repair, grouting and structural strengthening, not resin-impregnated CIPP/short-liner glass-fibre systems for buried pipe rehabilitation — that’s a distinct, specialist category served mainly by dedicated trenchless-technology suppliers, and forcing a comparison would mislead a specifier. Where a project also needs accessible manhole or chamber repair, MC-Bauchemie’s standard concrete repair mortars remain the relevant, directly comparable line to pair with this fabric.

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