MC-Bauchemie MC-Floor 3K
A trowel-applied, three-component epoxy mortar that turns a plain concrete slab into a dense, seamless, chemical- and abrasion-resistant industrial floor built to survive forklift traffic and aggressive washdown.
What is it?
A three-component, solvent-free epoxy mortar screed from MC-Bauchemie, combining resin, hardener and pre-graded quartz aggregate into a dense monolithic floor topping laid at 4-9 mm.
Where is it used?
Food and beverage plants, pharmaceutical GMP areas, chemical and petrochemical facilities, breweries, cold stores and heavy manufacturing shop floors across Delhi NCR and Pan-India.
Why use it?
It delivers a jointless, easy-to-clean wearing surface with high compressive strength and broad chemical resistance, standing up to point loads and CIP chemicals that ordinary concrete or thin coatings cannot handle.
How is it applied?
Trowel-applied by trained applicators over a shot-blasted, primed concrete substrate, screeded to a set thickness and left to cure for staged pedestrian and forklift traffic.
About MC-Bauchemie MC-Floor 3K
MC-Floor 3K is MC-Bauchemie’s answer to the toughest question in industrial flooring: how do you give a working slab a surface that shrugs off wheels, chemicals and constant cleaning without falling apart in a year or two? The system arrives as three parts kept separate until site mixing. A bisphenol-A epoxy resin base, an amine hardener and a bag of pre-graded hard quartz aggregate come together on the floor to form a solvent-free cross-linked mortar. Once cured, that mortar behaves less like a paint film and more like a new, harder top layer of the floor itself, bonded into the concrete beneath it rather than sitting loosely on top.
For engineers and consultants specifying floors in food, pharma or chemical plants, the appeal is practical. A trowelled mortar screed at 4 to 9 mm gives you real body to work with, enough to bridge minor surface defects, take repeated impact and hold up under solid-tyre forklifts and loaded pallet racking. Because it is laid seamless, there are no tile joints or coving gaps for bacteria, spills or aggressive liquids to collect in. Space Arc Engineering supplies and applies MC-Floor 3K as an authorised MC-Bauchemie project partner, handling everything from substrate assessment and shot blasting through to priming, laying and staged handover across Delhi NCR and Pan-India sites.
The technical insight
The performance of MC-Floor 3K comes from the interplay of its three components rather than any single ingredient. The epoxy resin and amine hardener cross-link into a rigid, chemically stable polymer matrix, while the pre-graded quartz aggregate does the heavy lifting on wear and load. Because the aggregate is graded, particles pack tightly and the resin only needs to bind them, which keeps shrinkage low and pushes compressive strength beyond 70 MPa. That dense packing is also why abrasion loss stays under roughly 3000 mg in Taber testing to ASTM D4060 and why the floor resists gouging from steel wheels and dropped tools. The bond to the substrate is deliberately engineered too, with tensile bond strength above 2.5 MPa to EN 1542, meaning the mortar is more likely to fail cohesively within itself than peel away from properly prepared concrete. Solvent-free chemistry matters here: with no solvent to flash off, the mortar cures without shrinkage voids and stays serviceable in enclosed food and pharma spaces where solvent odours are unacceptable.
Where it is used
- Food and beverage processing floors requiring hygienic, washdown-durable surfaces
- Pharmaceutical and GMP manufacturing areas under Schedule M cleanliness regimes
- Chemical and petrochemical plant floors exposed to acids, alkalis and solvents
- Brewery and distillery floors subject to thermal shock and organic acids
- Cold store and freezer areas where a low-temperature cure hardener is specified
- Heavy engineering and manufacturing shop floors with forklift and rack loads
- Battery, CIP and process bays needing localised chemical resistance
- Loading docks and internal traffic aisles under solid-tyre wheeled movement
Key advantages
- Three-component design gives a dense, high-body mortar rather than a thin film that wears through quickly
- Compressive strength above 70 MPa handles point loads from pallet racking and forklift axles up to 12 tonnes
- Broad chemical resistance to mineral acids, alkalis, solvents, oils and CIP cleaning agents
- Solvent-free and low-odour, suitable for enclosed food and pharmaceutical environments
- Seamless, jointless finish is easy to clean and leaves no crevices for contamination
- Strong bond to concrete above 2.5 MPa (EN 1542) resists delamination under traffic
- Low-temperature cure hardener option allows use in cold stores and freezer rooms
- Long service life of 15 to 25 years in demanding industrial settings when correctly laid
Limitations & considerations
- Needs sound concrete of at least 25 MPa, minimum 28 days old, or the mortar bond is compromised
- Mandatory shot blasting to an ICRI CSP 3-4 profile adds preparation time and cost
- Pot life of only 30 to 45 minutes at 25 degrees C demands disciplined mixing and quick placement
- Substrate and ambient temperature must sit in the 15 to 30 degrees C window with humidity below 75 percent RH
- As a trowel-applied mortar it is a skilled-applicator product, not a DIY or general-purpose coating
- Rigid epoxy body offers limited crack-bridging, so active or moving substrate cracks must be treated first
Selection & best practice
Success with MC-Floor 3K is decided before the first trowel touches the floor. Confirm the slab is at least 28 days old, tests above 25 MPa and reads below 75 percent RH by BS 8203 moisture assessment; if a vapour drive is present, address it rather than laying over it. Shot blast to a clean, open ICRI CSP 3-4 profile and prime so the mortar keys into sound concrete. Mix full units only, never part-batches, and respect the 30 to 45 minute pot life at 25 degrees C by keeping mixing and laying teams in step. Work within a 15 to 30 degrees C substrate temperature and use the low-temperature cure hardener for cold rooms. Protect fresh work from traffic: allow around 24 hours before foot traffic and 72 hours before forklifts, and a full 7 days for chemical and mechanical service. Where floor-to-wall hygiene is critical, detail coving into the specification. Space Arc’s applicators handle these steps as a controlled sequence rather than leaving them to site chance.
Specifications
| Product type | Three-component solvent-free epoxy mortar screed |
| Application thickness | 4 to 9 mm nominal (6 mm typical) |
| Compressive strength | Greater than 70 MPa at 7 days |
| Tensile bond strength | Greater than 2.5 MPa (EN 1542) |
| Abrasion resistance | Less than 3000 mg loss (ASTM D4060) |
| Pot life | 30 to 45 minutes at 25 degrees C |
| Full cure | 7 days at 25 degrees C |
| Substrate requirement | Minimum 25 MPa concrete, 28 days old, below 75% RH |
| Traffic rating | Solid-tyre forklift up to 12-tonne axle load |
Industry use cases
Food & Beverage
A seamless, washdown-resistant mortar floor that copes with organic acids, fats and daily CIP cleaning without harbouring bacteria in joints, supporting FSSAI-aligned hygiene.
Pharmaceutical
A jointless, easy-to-sanitise surface suited to Schedule M GMP areas, where solvent-free chemistry and a crevice-free finish keep contamination risk low.
Chemical & Petrochemical
A dense mortar bay floor that resists spills of dilute and concentrated acids, alkalis and solvents while taking mechanical abuse from drums and handling equipment.
Cold Store & Freezer
With the low-temperature cure hardener, the system can be laid and serviced in chilled and freezer environments where standard epoxies struggle to cure.
Heavy Manufacturing
A high-strength wearing surface engineered for forklift traffic and pallet-rack point loads on shop floors that see continuous mechanical duty.
Frequently asked questions
Is MC-Floor 3K a coating or a screed?
What thickness should we specify?
Can it be laid in a cold store or freezer?
What surface preparation does it need?
How soon can we use the floor after application?
Does Space Arc apply it or only supply the material?
How we position MC-Bauchemie MC-Floor 3K
MC-Floor 3K sits at the heavy-duty end of the flooring range as a full-body epoxy mortar screed, above thinner self-levelling and roller-applied epoxy coatings. Within the MC-Bauchemie family, look at the MC-DUR PowerCoat system where PU/mineral hybrid performance and thermal shock resistance up to 120 degrees C are needed, for example in wet food processing or vehicle-wash bays; PowerCoat 200 also serves as primer and sealer in those builds. Where a specifier wants a like-for-like Fosroc alternative, the equivalent three-part solvent-free trowel-applied epoxy screed is Nitoflor TF5000. For lighter-traffic areas that only need a durable coating rather than a mortar, a self-levelling or roller-grade epoxy is the more economical choice, and Space Arc can pair the right primer and joint treatment from our other brand lines to complete the specification.
Fosroc Nitoflor TF5000 — A specifier standardising on Fosroc, or one who wants a documented BS/EN track record on Indian projects, may prefer this three-part solvent-free trowel-applied epoxy screed as a direct equivalent to MC-Floor 3K.
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Authorised distribution, technical advice & professional application across Delhi NCR and Pan-India.