About Fosroc Nitoflor TF5000 E

Fosroc Nitoflor TF5000 E is the decorative-finish variant of Fosroc’s well-established Nitoflor TF5000 heavy-duty epoxy screed system. It is a three-part, solvent-free combination of epoxy resin, modified amine hardeners and specially graded, high-crushing-strength chemically inert aggregates, supplied in pre-weighed units ready for on-site mixing. Laid by trowel at a nominal 3 to 6 mm thickness, it forms a dense, impervious, seamless topping that bonds permanently to a properly prepared concrete substrate.

The product is engineered for environments where an ordinary power-floated concrete or thin-film coating would not survive. The graded aggregate gives it the body and crushing strength to take point loads, forklift wheels and dropped tooling, while the carefully selected amine curing agent gives broad chemical resistance against acids, alkalis, oils, solvents and process spillages. Because it is laid as a monolithic screed rather than a tiled or jointed system, it removes the grout lines and lap joints that are the usual points of failure and bacterial ingress in industrial floors. For Indian projects this is supplied through Space Arc Engineering, an authorised Fosroc distributor and applicator covering Delhi NCR and Pan-India, with the system completed using the matching Nitoprime 25 primer and, where a sealed hygienic finish is wanted, a Nitoflor FC-range epoxy seal coat.

The technical insight

The performance of TF5000 E comes from being a filled trowel screed rather than a self-smoothing coating. Unlike a 2-3 mm self-levelling epoxy that is essentially resin plus fine filler, TF5000 is heavily loaded with high-crushing-strength inert aggregate, so the wear surface is carried largely by hard mineral particles rather than soft resin. This is why it achieves a compressive strength above 45 N/mm2 (ASTM C579) against roughly 20 N/mm2 for typical floor concrete, and a flexural strength above 13 N/mm2 (BS6319) against about 6 N/mm2 for concrete. The 3-6 mm build also matters mechanically: at this thickness the screed behaves as a structural wearing layer that distributes impact and rolling loads into the slab, whereas a thin coating simply telegraphs and chips. Bond is the critical design factor: pull-off adhesion is specified above 2.5 N/mm2 (ASTM D4541), which generally exceeds the tensile strength of the concrete itself, meaning the substrate fails before the bond line. That bond is only realised on a sound, dry (moisture below 5 percent), mechanically prepared and Nitoprime 25-primed surface applied while the primer is still tacky, so surface preparation, not the screed chemistry, is where most failures originate.

Where it is used

• Heavy engineering plant and machine-shop floors subject to point loads and dropped tooling
• Chemical handling, process and plating areas exposed to acid and alkali spillage
• Steelworks, foundries and battery rooms requiring abrasion and corrosion resistance
• Dairies, breweries, sugar, beverage and food-processing floors needing a seamless impervious surface
• Oil refineries and paint workshops facing solvent and oil contamination
• Warehouse aisles, trucking lanes and forklift routes needing above-average durability and low maintenance
• Perimeter edge coving up to 150 mm formed in the same material for hygienic floor-to-wall junctions

Key advantages

• Extremely high strength: compressive strength >45 N/mm2 and flexural strength >13 N/mm2, well above ordinary floor concrete
• Seamless and impervious, eliminating joints and grout lines that are typical sources of failure and contamination
• Broad chemical resistance: rated Excellent against dilute sulphuric and citric acid, oils, solvents, salt and bleach on constant immersion
• Excellent abrasion and wear resistance for heavy vehicular and pedestrian traffic
• Safe non-slip, slightly granular textured finish with a decorative mottled uniform-colour appearance
• Solvent-free formulation supplied in pre-weighed units for consistent, controlled on-site mixing
• Fast turnaround: accepts top coating within ~24 hours and light vehicular traffic at ~48 hours
• Can form integral coving up to 150 mm and be over-sealed with Nitoflor FC-range coatings for hygienic areas

Limitations & considerations

• Performance depends entirely on substrate preparation: concrete must be at least 28 days old, sound, and below 5% moisture, with mechanical prep (grit-blast/grind) and Nitoprime 25 priming
• Trowel-applied screed requires skilled applicators; finish quality and compaction are operator-dependent
• Phosphoric acid 50% causes only a slight colour change (Grade C) and strong nitric/sulphuric acid (25% and above) are rated only for occasional spillage with good housekeeping, not constant immersion
• Not for permanent exposure above 60 C; high heat, hot welding activity and dragged metal-wheeled trolleys can damage the floor
• Pot life is limited (>60 minutes at 27 C) so mixed material must be placed promptly; epoxy cure slows in cold conditions
• Steel substrates require separate treatment: shot-blasting to SA 2.5 and priming with Nitoprime 28
• Drilling or core-cutting through the floor should not be done without confirmation from the manufacturer

Selection & best practice

Specifications

Industry use cases

How we position Fosroc Nitoflor TF5000 E

Within the Fosroc Nitoflor flooring range, TF5000 E sits at the heavy-duty end as a trowel-applied screed and should not be confused with thinner self-smoothing systems such as the Nitoflor self-levelling epoxies or thin-film coatings like the Nitoflor FC range, which are in fact used as the optional seal coat over TF5000 E. It is paired in use with Nitoprime 25 and Nitoprime 28 primers, and Reebaklens for acid etching, all from the same Fosroc system, which is the most reliable way to specify it. As an authorised Fosroc distributor and applicator, Space Arc Engineering recommends keeping the whole stack Fosroc for warranty and compatibility. For comparison and tender flexibility, credible competing heavy-duty epoxy screeds in the Indian market include Sika’s Sikafloor epoxy mortar screeds (e.g. Sikafloor-263/264 build-ups), MBCC/Master Builders Solutions MasterTop epoxy screed systems, STP Limited’s epoxy flooring range, and for lighter-duty industrial floor coatings Pidilite Dr. Fixit Roffe epoxy floor products. TF5000 E is most competitive where a thick, aggregate-filled, chemical- and abrasion-resistant screed is genuinely required rather than a thin decorative coating; for very thin or fast-track jobs a self-levelling or coating system from these ranges may be more economical.

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