About MC-Bauchemie MC-DUR Grout

{“name”:”MC-DUR Grout”,”slug”:”mc-dur-grout”,”brand”:”MC-Bauchemie”,”realProduct”:”yes”,”officialSource”:”https://www.mc-bauchemie.in/products/grouts/fast-grouts/mc-dur-grout.html”,”category”:”grouts-anchors”,”metaTitle”:”MC-DUR Grout | High Early Strength Epoxy Grout | Space Arc”,”metaDescription”:”MC-DUR Grout is a three-component, solvent-free epoxy grout for machine foundations and baseplates, delivering 85 N/mm² strength within 24 hours.”,”heroSubtitle”:”A three-component, high-early-strength epoxy grout built for precision baseplate and machine-foundation work where downtime costs more than the grout does.”,”glance”:{“whatIsIt”:”MC-DUR Grout is a three-component, solvent-free epoxy resin grouting system — a resin, a hardener, and a pre-batched graded silica filler — that combines on site into a flowable, non-shrink grout for high-load bearing applications.”,”whereUsed”:”Machine and compressor foundations, baseplates and soleplates, crane and gantry rail beds, wind turbine tower bases, and anchor bolt or bolt-pocket fixing across process plants, steel fabrication yards, ports, and power and energy sites in India.”,”whyUse”:”It reaches roughly 85 N/mm² compressive strength within 24 hours, holds its volume without shrinking under sustained vibration, and its low exotherm keeps thick pours from cracking — properties a standard cementitious grout can’t match when a compressor skid or crane rail has to go back into service overnight.”,”howApplied”:”Blend resin and hardener for about a minute, empty into a clean container and mix again, then fold in the pre-weighed filler at 4.5:1.0:25 parts by weight; pour continuously from one side into rigid, leak-proof formwork within the roughly 43-minute pot life, working out trapped air to achieve upwards of 85-95% effective bearing area, in lifts up to 75mm.”},”about”:”MC-DUR Grout sits at the top end of MC-Bauchemie’s grouting range — the epoxy option the company keeps alongside its larger cementitious Emcekrete family for jobs where cement-based grout simply won’t hold up. It’s a three-component system: an epoxy resin, a hardener, and a separately packed silica filler proportioned and supplied ready to combine on site, so there’s no guessing on filler ratios in the field. Once mixed, it flows into position, resists shrinkage as it cures, and builds compressive strength fast enough — around 85 N/mm² inside a day — that machinery can often be re-commissioned the next morning rather than the next week. The low peak exotherm (roughly 41-51°C depending on ambient conditions) is a deliberate design choice: mass pours of standard epoxy grout can generate enough heat to crack themselves from the inside, and MC-DUR Grout is formulated to avoid that.\n\nFor Space Arc’s clients across Delhi NCR and pan-India project sites, this is the grout that gets specified when a compressor, turbine, gearbox, or crane rail sits under genuine dynamic and vibratory load — situations where a cementitious grout’s lower strength and shrinkage tolerance become a real risk over years of service. It’s not a general-purpose product; for routine equipment bases, precast column grouting, or void filling that doesn’t see cyclic loading, MC-Bauchemie’s own cementitious grouts (or a Fosroc equivalent) usually do the job for less money. Where MC-DUR Grout earns its premium is wind energy foundations, heavy rotating machinery, rail infrastructure, and any baseplate where downtime is the real cost driver, not the grout itself.”,”technicalInsight”:”The number worth understanding on this data sheet is EBA — effective bearing area. MC-DUR Grout is rated for grouting heights up to 75mm in a single lift while achieving more than 85% EBA, meaning at least 85% of the baseplate’s underside actually sits in solid, void-free grout rather than trapped air pockets. Applicators aim to push past 95% EBA in practice by pouring continuously from one side and venting air as they go — a poorly placed pour with entrapped air can look fine on the surface and still fail under dynamic load because the bearing contact isn’t there. The compressive strength figures (≥85 N/mm² at 24 hours, ≥100 N/mm² at 28 days per ASTM C 579) are tested in a controlled lab environment at 30°C; site strength gain will track close to this in typical Indian ambient conditions but slows meaningfully below 20°C, which is why the data sheet flags a hard stop on grouting below 5°C surface temperature — and above 45°C, where the already-short ~43-minute pot life collapses further and risks a cold joint mid-pour.”,”applications”:[“Machine and compressor foundation grouting”,”Baseplate and soleplate grouting for pumps, gearboxes and generators”,”Crane rail and gantry rail bed grouting”,”Wind turbine tower base ring grouting”,”Anchor bolt and bolt-pocket fixing”,”Rail track fastening and sleeper grouting”,”Heavy machinery bases under dynamic or vibratory load”,”Precision levelling of structural steel column base plates”],”advantages”:[“High early strength — reaches ≥85 N/mm² in 24 hours, so equipment is back in service fast”,”Non-shrink formulation holds dimensional stability under sustained vibration”,”Solvent-free system is safer to mix and pour in enclosed plant areas”,”Low exotherm reduces the risk of thermal cracking in mass pours”,”Pre-batched, ready-to-use filler component removes site dosing guesswork”,”Excellent flow gives over 85% effective bearing area up to 75mm pour depth”,”Good resistance to oils, greases and common industrial chemicals”,”High compressive and tensile strength suited to genuinely dynamic loads”],”limitations”:[“Pot life is only about 43 minutes at lab conditions and shortens further in Indian summer heat, so large pours need a tight, well-rehearsed placement plan”,”Single-lift depth is capped at 75mm — deeper foundation voids need staged pours or a different system entirely”,”Grouting must stop outside the 5°C-45°C surface temperature window, which limits peak-summer midday and winter early-morning work”,”Three components must be weighed and mixed in strict sequence — less forgiving on site than a single-bag cementitious grout for crews unfamiliar with epoxy systems”,”Costs meaningfully more per kg than MC-Bauchemie’s cementitious Emcekrete range, so it should be reserved for genuine dynamic-load or fast-turnaround cases”,”Needs a completely dry, oil-free substrate — residual moisture or contamination compromises bond in a way cementitious grouts tolerate better”],”bestPractice”:”Prepare the substrate by hydro-blasting or equivalent mechanical cleaning until it’s fully sound, then let it dry completely — epoxy grout will not bond through residual moisture or an oil film. Build rigid, leak-proof formwork with a shoulder length no more than 50mm, and grout anchor bolt pockets first before pouring under the baseplate itself. Mix the resin and hardener alone for about a minute, transfer to a clean container and mix again, then fold in the filler last, working within the pot life. Pour continuously from one side — never from multiple points — so trapped air has somewhere to escape, and avoid any vibration or shock near the grout for the first few hours while it’s still gaining early strength. In peak summer, mix and pour in the cooler part of the day and keep materials out of direct sun beforehand, since both pot life and workability drop as ambient temperature climbs.”,”specs”:[{“property”:”Chemistry / System”,”value”:”Three-component, solvent-free epoxy resin grout (resin + hardener + silica filler)”},{“property”:”Density (mixed)”,”value”:”2.2 ± 0.05 kg/litre at 30°C”},{“property”:”Mixing ratio (by weight)”,”value”:”Resin : Hardener : Filler = 4.5 : 1.0 : 25.0 (filler adjustable 23-25 seasonally)”},{“property”:”Compressive strength (ASTM C 579)”,”value”:”≥85 N/mm² @ 24 hrs; ≥95 N/mm² @ 7 days; ≥100 N/mm² @ 28 days”},{“property”:”Pot life (FIP 5.1)”,”value”:”~43 minutes (100g mass)”},{“property”:”Peak exotherm (ASTM D 2471)”,”value”:”41°C @ 25°C ambient / 51°C @ 30°C ambient”},{“property”:”Max single-lift grouting height”,”value”:”75mm, achieving >85% effective bearing area (EBA)”},{“property”:”Pack size”,”value”:”Kit of Resin 4.5kg + Hardener 1kg + Filler 25kg (30.5kg total)”},{“property”:”Shelf life”,”value”:”12 months from manufacture in unopened packaging”}],”useCases”:[{“sector”:”Process & manufacturing plants”,”detail”:”Compressor, pump and gearbox skid foundation grouting where fast strength gain limits production downtime.”},{“sector”:”Wind energy”,”detail”:”Tower base ring and foundation grouting where cyclic wind loading demands non-shrink, high-strength bearing.”},{“sector”:”Steel fabrication & material handling”,”detail”:”Crane and gantry rail bed grouting subjected to repeated dynamic loading from travelling loads.”},{“sector”:”Railways & infrastructure”,”detail”:”Rail track fastening and sleeper or bolt grouting on high-vibration alignments.”},{“sector”:”Industrial retrofits”,”detail”:”Re-anchoring or relocating heavy machinery bases where the plant needs to be back online within a day.”}],”faq”:[{“q”:”How is MC-DUR Grout different from MC-Bauchemie’s Emcekrete cementitious grouts?”,”a”:”Emcekrete is a cement-based, economical grout suited to routine baseplate and precast work. MC-DUR Grout is an epoxy system that costs more per kg but delivers roughly double the compressive strength, doesn’t shrink under vibration, and reaches usable strength in a day rather than a week — worth it where equipment runs under real dynamic load.”},{“q”:”How thick a pour can MC-DUR Grout handle in one go?”,”a”:”Up to 75mm in a single lift while still achieving good effective bearing area. Deeper foundation voids are typically grouted in stages or reviewed with MC-Bauchemie’s technical team for a build-up sequence.”},{“q”:”How soon can machinery go back into service after grouting?”,”a”:”It’s rated at ≥85 N/mm² compressive strength within 24 hours under standard 30°C lab conditions, which is why it’s specified where minimising downtime matters most. Most site programmes plan for load-on the next day, confirmed against actual site temperatures.”},{“q”:”Does Delhi NCR’s summer heat affect how it’s applied?”,”a”:”Yes — pot life is already short at roughly 43 minutes under lab conditions and drops further as temperatures climb; the data sheet caps grouting above 45°C surface temperature. Mix in smaller batches, work early morning where possible, and have formwork ready before you start mixing.”},{“q”:”What quantity should I order for a given foundation?”,”a”:”The full kit (4.5kg resin + 1kg hardener + 25kg filler = 30.5kg) yields roughly 14 litres of mixed grout at the stated 2.2 kg/litre density. Use that yield against your void volume, with some allowance for wastage.”},{“q”:”What surface preparation does it need before pouring?”,”a”:”The substrate must be fully sound, free of oil and grease, and completely dry — hydro water-blasting or equivalent mechanical cleaning is specified. Epoxy grout bonds poorly through residual moisture, a stricter requirement than most cementitious grouts.”}],”positioning”:”Within MC-Bauchemie’s own grout range, MC-DUR Grout is the epoxy specialist sitting above the cementitious Emcekrete (universal), Emcekrete UW (underwater/special conditions), and Emcekrete 70DS/90DS (high-performance cementitious) products — those cover the bulk of routine baseplate, precast and general grouting work at a lower cost, while MC-DUR Grout is reserved for genuinely dynamic, high-vibration, fast-turnaround applications. Outside the MC-Bauchemie range, the closest honest comparison is Fosroc’s Conbextra EP10, a two-component epoxy grout supplied as an all-liquid system rather than MC-DUR Grout’s resin-hardener-filler kit; a specifier already standardised on Fosroc systems, or working a smaller precision pour where Conbextra EP10’s pack sizing is more practical, might reasonably choose it instead. Space Arc supplies and applies both MC-Bauchemie and Fosroc grouting systems and can help match the right one to the actual load case rather than defaulting to the premium option.”,”fosrocAlternative”:{“name”:”Conbextra EP10″,”slug”:”fosroc-conbextra-ep10″,”note”:”A specifier already standardised on Fosroc systems, or running a smaller precision pour where Conbextra EP10’s liquid-pack format suits site logistics better, might reasonably choose it over MC-DUR Grout.”}}

The technical insight

The number worth understanding on this data sheet is EBA — effective bearing area. MC-DUR Grout is rated for grouting heights up to 75mm in a single lift while achieving more than 85% EBA, meaning at least 85% of the baseplate’s underside actually sits in solid, void-free grout rather than trapped air pockets. Applicators aim to push past 95% EBA in practice by pouring continuously from one side and venting air as they go — a poorly placed pour with entrapped air can look fine on the surface and still fail under dynamic load because the bearing contact isn’t there. The compressive strength figures (≥85 N/mm² at 24 hours, ≥100 N/mm² at 28 days per ASTM C 579) are tested in a controlled lab environment at 30°C; site strength gain will track close to this in typical Indian ambient conditions but slows meaningfully below 20°C, which is why the data sheet flags a hard stop on grouting below 5°C surface temperature — and above 45°C, where the already-short ~43-minute pot life collapses further and risks a cold joint mid-pour.

Where it is used

• Machine and compressor foundation grouting
• Baseplate and soleplate grouting for pumps, gearboxes and generators
• Crane rail and gantry rail bed grouting
• Wind turbine tower base ring grouting
• Anchor bolt and bolt-pocket fixing
• Rail track fastening and sleeper grouting
• Heavy machinery bases under dynamic or vibratory load
• Precision levelling of structural steel column base plates

Key advantages

• High early strength — reaches ≥85 N/mm² in 24 hours, so equipment is back in service fast
• Non-shrink formulation holds dimensional stability under sustained vibration
• Solvent-free system is safer to mix and pour in enclosed plant areas
• Low exotherm reduces the risk of thermal cracking in mass pours
• Pre-batched, ready-to-use filler component removes site dosing guesswork
• Excellent flow gives over 85% effective bearing area up to 75mm pour depth
• Good resistance to oils, greases and common industrial chemicals
• High compressive and tensile strength suited to genuinely dynamic loads

Limitations & considerations

• Pot life is only about 43 minutes at lab conditions and shortens further in Indian summer heat, so large pours need a tight, well-rehearsed placement plan
• Single-lift depth is capped at 75mm — deeper foundation voids need staged pours or a different system entirely
• Grouting must stop outside the 5°C-45°C surface temperature window, which limits peak-summer midday and winter early-morning work
• Three components must be weighed and mixed in strict sequence — less forgiving on site than a single-bag cementitious grout for crews unfamiliar with epoxy systems
• Costs meaningfully more per kg than MC-Bauchemie’s cementitious Emcekrete range, so it should be reserved for genuine dynamic-load or fast-turnaround cases
• Needs a completely dry, oil-free substrate — residual moisture or contamination compromises bond in a way cementitious grouts tolerate better

Selection & best practice

Specifications

Industry use cases

How we position MC-Bauchemie MC-DUR Grout

Within MC-Bauchemie’s own grout range, MC-DUR Grout is the epoxy specialist sitting above the cementitious Emcekrete (universal), Emcekrete UW (underwater/special conditions), and Emcekrete 70DS/90DS (high-performance cementitious) products — those cover the bulk of routine baseplate, precast and general grouting work at a lower cost, while MC-DUR Grout is reserved for genuinely dynamic, high-vibration, fast-turnaround applications. Outside the MC-Bauchemie range, the closest honest comparison is Fosroc’s Conbextra EP10, a two-component epoxy grout supplied as an all-liquid system rather than MC-DUR Grout’s resin-hardener-filler kit; a specifier already standardised on Fosroc systems, or working a smaller precision pour where Conbextra EP10’s pack sizing is more practical, might reasonably choose it instead. Space Arc supplies and applies both MC-Bauchemie and Fosroc grouting systems and can help match the right one to the actual load case rather than defaulting to the premium option.

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