Fosroc NitoflorUR103 IM
Water-based aliphatic polyurethane topcoat delivering abrasion resistance, chemical resistance and a fast-drying, low-odour finish for high-traffic industrial and commercial floors.
What is it?
A water-based aliphatic polyurethane (PU) coating from Fosroc’s Nitoflor flooring range, formulated as a protective, abrasion-resistant film-forming topcoat for floors and other substrates.
Where is it used?
High-traffic industrial and commercial floors, food and pharmaceutical plants, wet-process and frequent-wash areas, warehouses, and over cementitious, metallic, non-metallic and timber surfaces.
Why use it?
It combines good abrasion and wear resistance with high chemical resistance, fast recoat, low odour and easy cleaning, while aliphatic PU chemistry adds UV/colour stability and a durable wearing surface.
How is it applied?
Applied as a thin film by roller, brush or spray over a suitably prepared and primed substrate, typically in multiple coats at roughly 0.08-0.11 kg/m2 per coat, with a 2-4 hour recoat window at 20C.
About Fosroc NitoflorUR103 IM
Fosroc NitoflorUR103 IM is a water-based aliphatic polyurethane coating that sits within Fosroc’s well-established Nitoflor industrial-flooring family. Rather than a thick self-levelling screed, it functions as a protective film-forming topcoat: a relatively thin, tough wearing layer that is bonded to a prepared substrate to give it abrasion resistance, chemical resistance and an easy-to-clean finish. Fosroc positions it as a coating that “provides a protective surface with greater durability and abrasion resistance” and notes it can be applied not only over cementitious and concrete floors but also over metallic, non-metallic and timber surfaces, which makes it a versatile sealing and protection layer across mixed substrates on a single project.
The “UR” designation reflects its urethane (polyurethane) chemistry, and the aliphatic backbone is the key technical differentiator. Aliphatic polyurethanes resist yellowing and gloss-loss under UV exposure far better than aromatic systems, so the coating holds its colour and appearance longer where natural light is present. The water-based formulation keeps solvent odour and VOC emissions low, which is a practical advantage for indoor application in occupied buildings, food and pharmaceutical facilities, and any environment where solvent fumes are unacceptable. Fosroc lists its headline benefits as good abrasion and tear/wear resistance suited to heavily trafficked floors, high chemical resistance, rapid drying, an odourless application and easy cleaning.
In an Indian context, NitoflorUR103 IM is the kind of product specified where a concrete or screeded floor is structurally sound but needs a hard-wearing, washable, chemically resistant protective skin rather than a full high-build resin floor. Typical destinations include FMCG and pharmaceutical production halls, packaging and dispatch areas, wet-process zones, light-engineering workshops, corridors and back-of-house service areas in commercial buildings. Because it is water-based and low-odour, it suits refurbishment work in running facilities where downtime and fumes must be minimised. The trade-off for that thin-film economy is that, like all coatings, it relies on the substrate beneath it for impact and load performance and on correct surface preparation for adhesion and service life. Space Arc Engineering, as an authorised Fosroc distributor serving Delhi NCR and pan-India, supplies NitoflorUR103 IM alongside the primers, repair mortars and complementary Nitoflor systems needed to build a complete, warrantable floor specification.
The technical insight
The defining technical feature is aliphatic polyurethane chemistry in a water-based carrier. Aliphatic PU resists UV-driven yellowing and chalking, so unlike cheaper aromatic urethanes or many epoxies it keeps its colour and gloss under daylight, making it a genuine wearing-and-appearance topcoat rather than a sacrificial sealer. Polyurethane films are inherently tougher and more elastic than rigid epoxy, giving better abrasion, scuff and tear resistance and more tolerance of thermal movement and foot/trolley traffic. The water-based delivery means low VOC and effectively no solvent odour, allowing application in occupied, food-grade and poorly ventilated spaces; but it also makes the coating sensitive to application conditions, because the film must coalesce as water evaporates. The published recoat window of 2-4 hours at 20C and 60% RH will lengthen in the cold or high humidity and shorten in the heat, so curing behaviour is climate-dependent and matters on Indian sites. At a per-coat consumption of roughly 0.08-0.11 kg/m2, this is a low-film-build protective coating: it upgrades the surface of an existing sound floor, and is not a substitute for a high-build screed where heavy impact or deep chemical immersion is expected.
Where it is used
- Protective topcoat over concrete and cementitious industrial floors
- Floor coating for food, beverage and pharmaceutical production areas
- Wet-process and frequent-wash zones requiring a washable, chemical-resistant skin
- High-traffic warehouse, packaging and dispatch floors
- Sealing and protecting metallic and non-metallic surfaces
- Coating timber/plywood surfaces needing abrasion protection
- Refurbishment of sound floors in occupied, low-odour-required spaces
- Light-engineering workshops and back-of-house commercial service areas
Key advantages
- Aliphatic PU chemistry resists UV yellowing and holds colour/gloss
- Good abrasion and wear resistance suited to heavily trafficked floors
- High chemical resistance against spills and routine cleaning agents
- Water-based, low-odour and low-VOC for indoor and occupied-area use
- Fast drying with a 2-4 hour recoat window at 20C
- Bonds to varied substrates: concrete, metal, non-metal and timber
- Easy to clean and maintain, supporting hygienic environments
- Backed by Fosroc technical support and authorised India distribution
Limitations & considerations
- Thin-film protective coating, not a high-build screed for heavy impact
- Relies entirely on substrate soundness and correct preparation for adhesion
- Water-based curing is sensitive to low temperature and high humidity
- Not intended for prolonged immersion or aggressive chemical-tank duty
- Detailed numeric specs (solids, gloss, DFT) require the country-specific TDS
- Application thickness is low, so it protects rather than levels a floor
- Distributed primarily through regional Fosroc markets; confirm local availability
Selection & best practice
Treat NitoflorUR103 IM as a coating system, not a paint. Begin with mechanical surface preparation (grinding or shot-blasting concrete to an open, contaminant-free profile; abrading metal/timber) and ensure the substrate is sound, dry and free of laitance, oil and old coatings. Make good cracks and defects with the appropriate Fosroc repair products and prime as recommended for the substrate before topcoating. Apply in thin, even coats by roller, brush or spray at the specified consumption, maintaining a wet edge, and respect the 2-4 hour recoat window adjusting for site temperature and humidity, which on Indian sites can vary widely between seasons. Avoid application onto green concrete, over rising damp, or in conditions outside the recommended temperature/RH range. Always obtain and follow the current country-specific Fosroc Technical Data Sheet for exact solids, coverage, DFT, pot life and cure data, and order primer and repair materials together so the whole system cures compatibly. Space Arc Engineering can supply the full system and the correct TDS for your region.
Specifications
| Product type | Water-based aliphatic polyurethane coating |
| Range | Fosroc Nitoflor industrial-flooring family |
| Carrier / base | Water-based (low odour, low VOC) |
| Form | Two-part system (mixed before use) |
| Typical consumption | approx. 0.08-0.11 kg/m2 per coat |
| Recoat / overcoat time | 2-4 hours at 20C and 60% RH |
| Suitable substrates | Cementitious/concrete, metallic, non-metallic, timber |
| Application method | Roller, brush or spray over prepared/primed substrate |
| Key resistances | Abrasion, wear/tear and chemical resistance |
| Finish characteristics | Durable, easy-to-clean, odourless application |
Industry use cases
Food & Beverage Processing
Provides a washable, chemical-resistant and low-odour protective floor coating for production and wet-process areas where hygiene and frequent cleaning are critical.
Pharmaceutical Manufacturing
Used as an easy-to-clean topcoat in production and packaging halls where solvent odour is unacceptable and a durable, chemically resistant surface is required.
Warehousing & Logistics
Upgrades sound concrete floors in high-traffic packaging, dispatch and storage areas with abrasion resistance against trolley and foot traffic.
Light Engineering & Workshops
Seals and protects workshop floors and varied substrates from wear and incidental chemical spills while keeping surfaces dust-free and cleanable.
Commercial Refurbishment
Allows fast, low-odour recoating of existing floors in occupied buildings, minimising downtime in corridors and back-of-house service areas.
Frequently asked questions
What is Fosroc NitoflorUR103 IM?
What surfaces can it be applied to?
Why choose an aliphatic polyurethane over an epoxy coating?
How fast does it dry and how much is needed?
Is it suitable for food and pharmaceutical facilities in India?
Where can I buy NitoflorUR103 IM and get the datasheet in India?
How we position Fosroc NitoflorUR103 IM
Within the Fosroc range, NitoflorUR103 IM is a thin-film protective topcoat, distinct from high-build Nitoflor PU-cement screeds (such as the Nitoflor SL/HB U series) and from heavy-duty resin floors. Specify it to upgrade a sound floor rather than to rebuild a damaged one; for impact-prone or thermally cycled floors pair it with, or step up to, a Fosroc PU-cement system, and use Fosroc epoxy primers and repair mortars to complete the buildup. Against competitors, it competes with Sika’s water-based PU floor coatings (e.g. Sikafloor PU topcoats), MBCC/Master Builders Solutions Ucrete and MasterTop coatings, STP’s PU floor coatings, and, for lighter-duty appearance work, Dr. Fixit/Pidilite floor coatings. Its honest edge is aliphatic UV stability plus low-odour water-based application; its honest limit is low film build, so for deep chemical immersion or severe mechanical duty a thicker epoxy or PU-cement system from any of these brands is the better fit. Space Arc Engineering can advise on the right system and supply the verified TDS.
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