Sika Sikafloor-264
A two-part, coloured high-build epoxy coating that works as a roller finish or a self-smoothing wearing course — gloss, liquid-proof and clean-room ready.
What is it?
A two-component, coloured high-build epoxy resin coating (Part A resin + Part B hardener + pigment) that can be roller-applied or laid as a self-smoothing wearing course.
Where is it used?
Manufacturing floors, car park decks, automotive workshops, clean rooms, amenity areas and as a base coat under vinyl-flake systems.
Why use it?
Delivers a seamless, gloss, liquid-proof finish with good chemical and mechanical resistance and low VOC, carrying EN 1504-2 and EN 13813 conformity.
How is it applied?
Mix Part A:B at 79:21 (3.8:1 by weight), then roller-apply at ~0.25–0.3 kg/m² per coat or trowel/pin-roll as a self-smoothing course at ~0.9–1.2 kg/m² per mm.
About Sika Sikafloor-264
Sikafloor-264 is one of Sika’s most versatile epoxy floor coatings, and that versatility is the reason it turns up on so many Indian project specifications. It is a two-component, coloured, high-build epoxy resin — a pigmented Part A blended with a hardener Part B — that cures to a seamless, glossy, liquid-proof film. What makes it flexible is that the same material can be used two ways: rolled on as a thin protective seal coat at roughly 0.25 to 0.3 kg per square metre, or laid thicker as a self-smoothing wearing course and finish-lock coat over textured, broadcast systems. That dual role lets a contractor standardise on one product across a job rather than stocking separate primers, body coats and seal coats.
For engineers and consultants, the appeal is the balance of performance and paperwork. The film offers good chemical and mechanical resistance, a Shore D hardness of around 76 and tensile adhesion above 1.5 N/mm² (with failure occurring in the concrete, not the bond line). It is documented against EN 1504-2 for concrete surface protection and EN 13813 as a synthetic-resin screed material, both CE-marked, and it carries clean-room particle-emission and outgassing certificates to ISO 14644 and a fire classification to EN 13501-1. Because it is essentially 100 percent solids with low VOC, it is a practical choice for occupied and sensitive facilities where solvent odour and off-gassing are a concern.
The technical insight
The chemistry is a straightforward amine-cured epoxy: the resin and hardener react on mixing to build a dense, cross-linked polymer network with almost no solvent to flash off, which is why solids content sits near 100 percent by mass and volume. That tight network is what gives the film its combination of hardness (Shore D ~76), abrasion resistance (~35 mg loss, CS 10/1000/1000) and chemical resistance to oils, dilute acids, alkalis and cleaning agents. The high-build, self-smoothing behaviour comes from the resin’s flow and levelling characteristics — applied wet at the right thickness it releases entrained air and settles into a pinhole-free, gloss surface without troweling. Adhesion is driven by the epoxy wetting a correctly prepared, sound concrete substrate; the specification of failure-in-concrete on the pull-off test means the coating is stronger than the substrate it protects. Cure is temperature-dependent because the amine reaction slows in the cold: pot life runs from about 15 minutes at 30 degrees C to 50 minutes at 10 degrees C, and full cure moves from roughly 5 days at 30 degrees C to 10 days at 10 degrees C.
Where it is used
- Protective seal and finish coating for concrete floors in general manufacturing facilities
- Coating for intermediate and basement car park decks where a hard-wearing, liquid-proof surface is needed
- Automotive and engineering workshop floors exposed to oils, spills and mechanical traffic
- Clean-room floors requiring low particle emission and outgassing (ISO 14644 certified)
- Self-smoothing wearing course and finish-lock coat over broadcast or textured epoxy systems
- Base coat beneath decorative vinyl-flake and quartz-broadcast flooring systems
- Amenity, canteen and educational trade-facility floors needing a gloss, cleanable finish
- Scratch coats and blinding coats to level minor substrate imperfections before topcoats
Key advantages
- Dual-purpose — usable as a rolled seal coat or a thicker self-smoothing wearing course from one product
- Seamless, gloss, liquid-proof finish that is easy to clean and hygienic
- Good chemical and mechanical resistance with high surface hardness (Shore D ~76)
- Strong bond to prepared concrete — pull-off failure occurs in the substrate, not the coating
- Low VOC and ~100 percent solids, suitable for occupied and sensitive environments
- Backed by EN 1504-2, EN 13813, EN 13501-1 fire and ISO 14644 clean-room certifications
- Wide RAL colour range plus pre-pigmented ready-to-mix kits for consistent shade
- Slip-resistant finish achievable when broadcast with aggregate
Limitations & considerations
- Not UV-stable — direct sunlight can cause discolouration and shade variation (cosmetic only, no loss of performance)
- Sensitive to substrate moisture: needs less than 4 percent moisture; readings up to 6 percent require a Sikafloor-161 primer and higher readings need Sikafloor-81 EpoCem
- Short pot life in hot Indian conditions — roughly 15 minutes at 30 degrees C, so mixed quantities must be planned
- Application window is narrow: 10 to 30 degrees C substrate and air, max 80 percent RH, and at least 3 degrees C above dew point to avoid blooming
- For professional application only — surface preparation, mixing and timing are unforgiving of shortcuts
- Overcoat window between coats is limited (e.g. 24 hours to 2 days at 20 degrees C); exceeding it needs abrasion before recoating
Selection & best practice
Success with Sikafloor-264 is decided before the resin is opened. Prepare the concrete mechanically — captive-shot blasting or diamond grinding — to a sound, dust-free, open-textured surface, then confirm moisture is below 4 percent by weight using a Tramex or CM meter; if it reads higher, prime with Sikafloor-161 (up to 6 percent) or Sikafloor-81 EpoCem for hydrostatic issues. Check that substrate and air are between 10 and 30 degrees C, relative humidity is at or below 80 percent, and the floor stays at least 3 degrees C above dew point to avoid blooming. Mix the full Part A and Part B together at the 79:21 ratio with a low-speed drill (300–400 rpm) until uniform, add pigment where using bulk packs, and never split a kit by eye. Because pot life can drop to around 15 minutes at 30 degrees C, mix only what the crew can lay immediately and work to a wet edge. Respect the overcoat window — roughly 24 hours to 2 days at 20 degrees C between coats — and if it is exceeded, lightly abrade before the next coat. Protect the fresh floor from foot traffic for about 24 hours at 20 degrees C and allow the full cure before heavy or chemical loading.
Specifications
| Composition | Two-part coloured epoxy resin (Part A resin + Part B hardener + pigment) |
| Mixing ratio | Part A : Part B = 79 : 21 (3.8:1 by weight, 2.4:1 by volume) |
| Consumption (roller coat) | ~0.25–0.3 kg/m² per coat |
| Consumption (self-smoothing) | ~0.9–1.2 kg/m² per mm thickness |
| Shore D hardness | ~76 (7 days / +23°C, DIN 53505) |
| Tensile adhesion strength | >1.5 N/mm² (failure in concrete, ISO 4624) |
| Pot life | ~50 min at 10°C, ~25 min at 20°C, ~15 min at 30°C |
| Full cure | ~10 days at 10°C, ~7 days at 20°C, ~5 days at 30°C |
| Packaging / shelf life | 9.7 kg & 19.4 kg ready-to-mix kits, 20 kg bulk; 12 months |
Industry use cases
Pharmaceutical & Clean Rooms
Its ISO 14644 particle-emission and outgassing certification and seamless, cleanable film suit GMP clean rooms, labs and controlled production areas.
Automotive & Engineering Workshops
The hard, oil- and chemical-resistant gloss surface stands up to vehicle traffic, spills and mechanical abuse on workshop and assembly floors.
Car Park Decks
Used as a liquid-proof protective coating on intermediate and basement parking decks, guarding the concrete from tyre wear and fluid ingress.
Food, Beverage & Amenities
The hygienic, jointless finish is easy to wash down for canteens, amenity blocks and light food-handling areas needing a durable, cleanable floor.
Decorative Flake & Broadcast Systems
Serves as the base and finish-lock coat under vinyl-flake and quartz-broadcast build-ups where a smooth, tintable body coat is required.
Frequently asked questions
Is Sikafloor-264 a self-levelling floor or a coating?
What is the correct mixing ratio?
How much floor does one kit cover?
Can it go over a damp or new concrete slab?
Will the colour fade over time?
How long before the floor can be used?
How we position Sika Sikafloor-264
Sikafloor-264 sits in the middle of Sika’s epoxy flooring range as the workhorse coloured coating. Within the same Sika family, pair it with Sikafloor-161 as the primer for absorbent or slightly damp slabs, and step up to Sikafloor-81 EpoCem where moisture or hydrostatic pressure is a problem. For thicker, higher-mechanical broadcast build-ups it functions as the base and lock coat under Sikafloor MultiDur ES-14, EB-24 and vinyl-chip systems rather than replacing them, and where UV exposure matters a Sikaflor polyurethane topcoat protects the colour. Across our other brands, contractors often compare it with MC-Bauchemie and Master Builders Solutions epoxy coatings for clean-room and industrial floors; we can help specify the right one against your loading, chemical exposure and budget.
Fosroc Nitoflor FC150 — A specifier standardising on Fosroc, or wanting a comparably certified high-build solvent-free epoxy coating for chemical and abrasion-exposed industrial floors, can choose Nitoflor FC150 as a like-for-like alternative.
Related Industrial Flooring products
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