About MC-Bauchemie MC-Injekt 1264 TF

{“name”:”MC-Injekt 1264 TF”,”slug”:”mc-injekt-1264-tf”,”brand”:”MC-Bauchemie”,”realProduct”:”yes”,”officialSource”:”https://www.mc-bauchemie.in/products/injection-systems/structural-injections/mc-injekt-1264-tf.html”,”category”:”concrete-repair-rehabilitation”,”metaTitle”:”MC-Injekt 1264 TF | Epoxy Crack Injection | Space Arc”,”metaDescription”:”MC-Injekt 1264 TF is a low-viscosity epoxy resin for structural crack injection in dry concrete, delivering high bond strength for repairs across India.”,”heroSubtitle”:”A low-viscosity structural epoxy that turns a dry, dormant crack back into monolithic concrete — not a sealant, a rebuild.”,”glance”:{“whatIsIt”:”A two-part, low-viscosity epoxy (duromer) resin injected under pressure to structurally rebond dormant, dry cracks, joints and voids in concrete and masonry.”,”whereUsed”:”RCC beams, columns, slabs, retaining walls, tunnel linings, precast joints, bridge piers and industrial floors — anywhere a dry, non-moving crack has broken load-path continuity.”,”whyUse”:”A rigid epoxy weld restores near-original strength across the crack — cured compressive strength (~75 MPa) and tensile strength (~65 MPa) exceed typical M25–M30 parent concrete.”,”howApplied”:”Component A and B are mixed at a 3:1 ratio by volume with a low-speed stirrer, decanted into an injection pump reservoir, and pumped through surface, hammer or high-pressure metal packers set along the crack path.”},”about”:”MC-Injekt 1264 TF is MC-Bauchemie’s rigid, force-locking epoxy injection resin — a two-component, solvent-free duromer system built specifically to structurally reunite concrete that has cracked but is no longer moving. Component A and B combine at a straightforward 3:1 volumetric ratio into a low-viscosity liquid (around 145 mPa·s) that behaves less like a coating and more like a penetrant: pumped under pressure through drilled or surface-mounted packers, it works its way into hairline fissures, construction-joint gaps and voids that a thicker cementitious grout could never reach, then cures into a rigid bridge with compressive strength around 75 N/mm² — comfortably higher than the M25–M30 concrete it typically repairs.\n\nFor Indian sites, that distinction matters more than the datasheet line suggests. Site engineers often reach for ‘crack injection’ as a catch-all term, but 1264 TF is explicitly formulated for dry, non-water-bearing cracks in dry constructions — it is a structural adhesive, not a waterstop. On RCC columns, beams and slabs where load-path continuity has been compromised by settlement, early-age shrinkage or minor movement, and where the crack has stabilised and stayed dry, it restores near-monolithic behaviour. Where the same crack is actively weeping or the structure sits below the water table, Space Arc steers clients toward a flexible, hydrophobic or hydrophilic polyurethane injection resin instead — using a rigid epoxy there would mask, not solve, the moisture problem, and could fail to cure properly against active water.”,”technicalInsight”:”The number worth dwelling on is the E-modulus: roughly 3,000 N/mm². That stiffness is what makes 1264 TF a rigid bonding agent rather than a flexible one — once cured, the repaired crack behaves structurally as if it were never there, which is exactly right for a genuinely dormant crack and exactly wrong for one still under thermal or live-load movement. Pair that with its pot life of roughly 30 minutes per 100 g batch at +20°C — shorter still on a hot Indian afternoon — and the product rewards contractors who pre-mix in small batches, pump promptly through the correct packer for the pressure involved, and never try to stretch a single pot across a long injection run.”,”applications”:[“Structural (force-locking) injection of dormant, dry cracks in RCC beams, columns and slabs”,”Re-bonding delaminated or debonded concrete sections back into a monolithic section”,”Pressure-filling of pre-installed injection hoses at construction and cold joints”,”Crack sealing in tunnel linings and underground structures, provided the substrate is dry”,”Restoring load continuity in cracked precast elements and segmental joints”,”Repair of cracked parking structures, industrial floors and bridge piers subject to vibration or dynamic load, once the crack is dormant”,”Filling voids and micro-cracks ahead of an overlay or protective coating on structural concrete”,”Structural rebonding in water-retaining structures, but only after the source of ingress is stopped and the substrate is confirmed dry”],”advantages”:[“High compressive (~75 N/mm²) and tensile (~65 N/mm²) strength — turns the crack into a load-bearing bond stronger than typical M25–M30 parent concrete”,”Low viscosity (~145 mPa·s) gives deep penetration into fine, hairline cracks by capillary action”,”Fast strength development and bonds even under dynamic or vibration loads, per the manufacturer’s technical data”,”Solvent-free, 100% reactive epoxy system — no shrinkage voids from solvent evaporation during cure”,”Simple, fixed 3:1 volumetric mixing ratio reduces batching errors on site”,”Colourless cured resin does not stain exposed concrete or architectural surfaces”,”Compatible with standard 1K injection pumps and MC’s full packer range — surface, hammer, and high-pressure metal packers rated to 200 bar”,”At least one year shelf life in sealed containers when stored between +5°C and +25°C, easing site logistics”],”limitations”:[“Strictly for dry, non-water-bearing cracks — not a waterstop; active leaks or moving water need a hydrophilic or hydrophobic PU injection resin instead”,”Rigid, high-modulus bond (~3,000 N/mm²) cannot accommodate further crack movement — unsuitable for live, working cracks or expansion joints”,”Minimum application temperature is +5°C, and air, substrate and material must all sit within +5°C to +30°C, which limits application in cold hill-station winters”,”Short pot life (~30 minutes per 100 g at +20°C) shortens further in Indian summer heat, demanding disciplined small-batch mixing and trained applicators”,”Tools must be cleaned only with MC-Verdünnung EP — water and water-based cleaners are explicitly prohibited, so the correct solvent must be kept on site”],”bestPractice”:”Before mixing a drop, confirm the crack is genuinely dormant and dry — run a dye or moisture check over a few days if there’s any doubt, since 1264 TF has no tolerance for active water. Drill and space packers to the actual crack path rather than a fixed grid: use surface or hammer packers for low- to medium-pressure work, and the Ø13 mm metal packer for high-pressure injection up to 200 bar. Keep substrate, air and material temperature between +5°C and +30°C throughout, mix only what can be pumped within the ~30-minute pot life, and clean all tools with MC-Verdünnung EP — never water — before the resin sets.”,”specs”:[{“property”:”Chemistry / Base”,”value”:”Two-component, solvent-free epoxy (duromer) resin”},{“property”:”Mixing Ratio (A:B)”,”value”:”3 : 1 by volume”},{“property”:”Density (mixed)”,”value”:”≈ 1.07 kg/dm³ (EN ISO 2811-1)”},{“property”:”Viscosity”,”value”:”≈ 145 mPa·s (EN ISO 3219)”},{“property”:”Compressive Strength”,”value”:”≈ 75 N/mm² (EN ISO 604)”},{“property”:”Tensile Strength”,”value”:”≈ 65 N/mm² (DIN 53455)”},{“property”:”E-Modulus”,”value”:”≈ 3,000 N/mm² (EN ISO 178)”},{“property”:”Pot Life”,”value”:”≈ 30 minutes per 100 g batch at +20°C”},{“property”:”Application Temperature”,”value”:”+5°C to +30°C (air, substrate and material)”}],”useCases”:[{“sector”:”Residential & Commercial RCC Structures”,”detail”:”Dormant shrinkage and settlement cracks in beams, columns and slabs pressure-injected to restore monolithic load transfer before finishing works resume.”},{“sector”:”Industrial Floors & Warehouses”,”detail”:”Dry structural cracks in heavily trafficked RCC floor slabs rebonded so forklift and racking loads no longer work the crack open further.”},{“sector”:”Bridges & Flyovers”,”detail”:”Dormant cracking in piers and pier caps injected to restore section continuity ahead of protective coating application.”},{“sector”:”Basements & Water-Retaining Structures”,”detail”:”Applied only once active seepage is stopped and the substrate has fully dried, to structurally rebond cracks that are no longer wet.”},{“sector”:”Precast & Tunnel Segments”,”detail”:”Voids and joint gaps between precast panels or tunnel lining segments filled to re-establish a continuous, load-bearing interface.”}],”faq”:[{“q”:”Will MC-Injekt 1264 TF stop an active water leak through a crack?”,”a”:”No — it is formulated for dry, non-water-bearing cracks only. For a leaking or actively moving crack, use a flexible hydrophobic or hydrophilic polyurethane injection resin instead; injecting a rigid epoxy into a wet crack won’t cure properly and won’t solve the moisture problem.”},{“q”:”How is it different from a PU injection foam or gel?”,”a”:”PU injection foams and gels are flexible and expand to chase and block water; 1264 TF is a rigid epoxy that structurally welds the two crack faces back together, so it’s chosen when the goal is restoring strength, not stopping water.”},{“q”:”What’s the smallest crack width it can penetrate?”,”a”:”Its low viscosity (around 145 mPa·s) lets it penetrate hairline cracks by capillary action, provided the crack is clean, dry and accessible to an injection packer.”},{“q”:”Can it be injected during Delhi NCR’s peak summer heat?”,”a”:”Yes, within the +5°C to +30°C material and substrate window, but the roughly 30-minute pot life shortens further in high ambient heat, so applicators should mix smaller batches and keep the injection pump moving continuously.”},{“q”:”What equipment does the applicator need on site?”,”a”:”A single-component (1K) injection pump, the correct packers for the pressure involved — surface or hammer packers for low/medium pressure, metal packers for high-pressure work up to 200 bar — and MC-Verdünnung EP for tool cleaning.”},{“q”:”How is MC-Injekt 1264 TF supplied?”,”a”:”As a two-component kit at the fixed 3:1 ratio — Component A in a 7.5-litre canister and Component B in a 2.5-litre canister — also available as a 6 x 1-litre carton pack for smaller repair jobs.”}],”positioning”:”Within MC-Bauchemie’s own injection portfolio, 1264 TF sits at the rigid end of the range — for cracks that are still moving, leaking, or need a flexible seal rather than a rigid weld, MC’s polyurethane-based MC-Injekt systems are the correct sister product, not this one. Against the wider market, the closest genuine equivalent is Fosroc’s Nitofill EPLV, a similarly low-viscosity epoxy for structural crack rebonding; Space Arc stocks both and will recommend whichever fits the specifier’s existing brand standard or on-site approval history, since the underlying chemistry and outcome are comparable.”,”fosrocAlternative”:{“name”:”Nitofill EPLV”,”slug”:”fosroc-nitofill-eplv”,”note”:”Specifiers already standardised on Fosroc’s product range, or working with an existing Fosroc-approved applicator, often choose Nitofill EPLV — a comparable low-viscosity epoxy crack-injection resin — over switching brands mid-project.”}}

The technical insight

The number worth dwelling on is the E-modulus: roughly 3,000 N/mm². That stiffness is what makes 1264 TF a rigid bonding agent rather than a flexible one — once cured, the repaired crack behaves structurally as if it were never there, which is exactly right for a genuinely dormant crack and exactly wrong for one still under thermal or live-load movement. Pair that with its pot life of roughly 30 minutes per 100 g batch at +20°C — shorter still on a hot Indian afternoon — and the product rewards contractors who pre-mix in small batches, pump promptly through the correct packer for the pressure involved, and never try to stretch a single pot across a long injection run.

Where it is used

• Structural (force-locking) injection of dormant, dry cracks in RCC beams, columns and slabs
• Re-bonding delaminated or debonded concrete sections back into a monolithic section
• Pressure-filling of pre-installed injection hoses at construction and cold joints
• Crack sealing in tunnel linings and underground structures, provided the substrate is dry
• Restoring load continuity in cracked precast elements and segmental joints
• Repair of cracked parking structures, industrial floors and bridge piers subject to vibration or dynamic load, once the crack is dormant
• Filling voids and micro-cracks ahead of an overlay or protective coating on structural concrete
• Structural rebonding in water-retaining structures, but only after the source of ingress is stopped and the substrate is confirmed dry

Key advantages

• High compressive (~75 N/mm²) and tensile (~65 N/mm²) strength — turns the crack into a load-bearing bond stronger than typical M25–M30 parent concrete
• Low viscosity (~145 mPa·s) gives deep penetration into fine, hairline cracks by capillary action
• Fast strength development and bonds even under dynamic or vibration loads, per the manufacturer’s technical data
• Solvent-free, 100% reactive epoxy system — no shrinkage voids from solvent evaporation during cure
• Simple, fixed 3:1 volumetric mixing ratio reduces batching errors on site
• Colourless cured resin does not stain exposed concrete or architectural surfaces
• Compatible with standard 1K injection pumps and MC’s full packer range — surface, hammer, and high-pressure metal packers rated to 200 bar
• At least one year shelf life in sealed containers when stored between +5°C and +25°C, easing site logistics

Limitations & considerations

• Strictly for dry, non-water-bearing cracks — not a waterstop; active leaks or moving water need a hydrophilic or hydrophobic PU injection resin instead
• Rigid, high-modulus bond (~3,000 N/mm²) cannot accommodate further crack movement — unsuitable for live, working cracks or expansion joints
• Minimum application temperature is +5°C, and air, substrate and material must all sit within +5°C to +30°C, which limits application in cold hill-station winters
• Short pot life (~30 minutes per 100 g at +20°C) shortens further in Indian summer heat, demanding disciplined small-batch mixing and trained applicators
• Tools must be cleaned only with MC-Verdünnung EP — water and water-based cleaners are explicitly prohibited, so the correct solvent must be kept on site

Selection & best practice

Specifications

Industry use cases

How we position MC-Bauchemie MC-Injekt 1264 TF

Within MC-Bauchemie’s own injection portfolio, 1264 TF sits at the rigid end of the range — for cracks that are still moving, leaking, or need a flexible seal rather than a rigid weld, MC’s polyurethane-based MC-Injekt systems are the correct sister product, not this one. Against the wider market, the closest genuine equivalent is Fosroc’s Nitofill EPLV, a similarly low-viscosity epoxy for structural crack rebonding; Space Arc stocks both and will recommend whichever fits the specifier’s existing brand standard or on-site approval history, since the underlying chemistry and outcome are comparable.

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