Anti-slip industrial flooring: aggregates, textures and maintenance

An anti-slip industrial floor is achieved by building an aggregate (quartz or aluminum oxide) into a resin coating, with a texture chosen for each zone: coarser where there is water or oil, finer where cleaning comes first. The friction value to reach comes from the client, the insurer or the specification, and is verified to ANSI A326.3.

A slip on a wet or oily floor is one of the most common accidents in a plant. A smooth resin coating, very easy to wash, becomes slippery as soon as a film of water or grease settles on it. Conversely, a texture that is too aggressive holds dirt, wears forklift wheels and makes cleaning hard work. This guide helps maintenance, health and safety and plant managers choose the right texture for each zone of an industrial epoxy floor in Quebec and Ontario.

Which areas need an anti-slip floor?

The areas that need an anti-slip floor are those where a contaminant regularly settles on the surface, or where a slope combines with foot traffic. The risk depends less on the coating than on what covers it in service.

• Wet areas. Washrooms, loading docks exposed to slush, basin surrounds, pump rooms, decontamination showers.
• Oily areas. Mechanical shops, compressor rooms, lubrication areas, around presses and machine tools.
• Food processing. Meat, dairy or bakery processing rooms, where fats, sugars, flour and wash water mix.
• Ramps, walkways and stairs. Any slope increases the risk, even when dry.

By contrast, a clean dry room, an electrical room or a storage area with no contaminant can take a light texture, or even a smooth finish. One building therefore often has several textures. Traffic routes, pedestrian aisles and fixed work zones are drawn on a plan before the job.

Which aggregate: quartz or aluminum oxide?

Quartz suits most industrial floors with normal traffic; aluminum oxide is justified where traffic is heavy and abrasion high, because it is harder and keeps its edges longer. The final choice, grading and method of incorporation follow the system's data sheet.

Grading (fine, medium or coarse) matters as much as the aggregate type. A coarse grain grips better under water and oil, but holds more dirt. The choice is discussed zone by zone, considering the actual contamination and cleaning method.

How is the aggregate built into the coating?

The aggregate is built in one of two ways: broadcast to refusal into a wet coat then sealed, or mixed into the topcoat. Broadcasting gives a coarser, more durable texture; mixing gives a finer texture that is easier to clean.

• Broadcast to refusal. A resin coat is applied, aggregate is broadcast into it until saturated, the excess is swept off after cure, then one or more topcoats seal it. The thickness of the sealing coats sets the final texture: more sealer rounds the grains and eases cleaning, less sealer leaves a more aggressive profile.
• Aggregate in the mix. The aggregate is mixed into the topcoat and rolled on. The texture is finer and more even, suited to areas where hygiene comes first.

In both cases, the texture is validated on a test area before general application. The client walks on it dry and wet, and the cleaning crew tries its tools. It is the simplest way to avoid a floor that is too slippery or impossible to wash. The choice of resin itself (epoxy, polyurethane, polyurea) is compared in our article on epoxy vs polyurethane vs polyurea flooring.

Texture or cleanability: how to strike the balance?

The balance is struck by choosing the minimum texture that meets the friction requirement under the zone's real conditions, then adapting the cleaning method to that texture. More profile is not always safer: a clogged profile loses part of its effect.

A few practical guidelines:

• Greasy areas. The texture has to break through the grease film; a medium to coarse profile is generally needed, with scrubber cleaning and a brush suited to the profile.
• Clean wet areas. A medium texture is often enough, as water alone drains between the grains.
• Sanitary areas. The aim is a fine, even texture with no pores or crevices, easy to sanitize; coved bases between floor and walls prevent dirt build-up.
• Slopes to drains. A well-built slope shortens the time water stays on the floor and therefore the risk; it is corrected before coating, not after.

Wheels matter too. An aggressive texture wears forklift treads and increases noise. In a forklift aisle, the target profile is often different from that of the adjacent pedestrian work zones.

How is the coefficient of friction measured?

The coefficient of friction is measured on site with a tribometer using a standardized method; in North America, ANSI A326.3 describes measuring the dynamic coefficient of friction on a wet surface. The value to reach does not come from the applicator: it is set by the client, its insurer, the specification or the plant's health and safety policy.

A useful measurement meets a few conditions:

• Test under service conditions. A dry reading on a floor that will be wet or oily says little. ANSI A326.3 covers the wet test; for particular contaminants such as oil, the method and criterion are agreed with the client.
• Test at several locations. Aisles, work zones, ramps and drain surrounds do not wear the same way.
• Test over time. A reading at handover, then periodically, shows whether wear or soiling is reducing traction.

The result is recorded with the date, location, floor condition and contaminant used. If the requirement is not met, the texture is adjusted before coating the whole area, which is another reason for the test area.

How do you maintain an anti-slip floor?

An anti-slip floor is maintained with regular cleaning suited to its texture and monitoring of wear, because the profile dulls with traffic and clogs if cleaning does not reach it. A well-maintained floor keeps its traction; a soiled floor becomes slippery again.

• Cleaning method. Scrubber or brush with bristles suited to the profile, detergent compatible with the resin per the data sheet, rinsing so no film is left.
• Frequency. It follows contamination: a food processing room is washed every shift, a dry warehouse far less often.
• Inspection. Look for polished areas (repeated paths, forklift turns), chipping and areas where the aggregate is gone.
• Restoration. A worn zone is renewed with a new textured coat after preparation, without redoing the whole floor, provided the original system is compatible.

Handover and follow-up checks fit into the building's maintenance program. Our article on industrial epoxy flooring cost explains how texture and maintenance enter the overall cost.

How to get a recommendation and a quote

To recommend the right texture, we need to know each zone's contaminants, the type of traffic, the cleaning method and the friction requirement set by the client or insurer. Send a rough plan, photos of the zones and your requirements; we propose a system and a test area.

Flooring is part of our protective coatings service; for fast-return areas, see also polyurea coatings. Our crews and qualified subcontractors work from LaSalle, including the Quebec City region, Mauricie and Centre-du-Québec and Ontario, in industrial settings only. Pricing is on consultation; use the request a quote form for a reply within 24 business hours.

Frequently asked questions

Is an epoxy floor slippery?

A smooth epoxy floor can become slippery as soon as it is wet or greasy. With a built-in aggregate and a texture suited to the zone, it becomes slip-resistant while staying washable.

What friction value should be reached?

The one set by the client, its insurer, the specification or the plant's health and safety policy. ANSI A326.3 describes how to measure; the requirement itself is confirmed before the job.

Can an existing floor be made anti-slip?

Often, yes. If the existing coating is sound and compatible, it is prepared and a textured coat is applied. If it is delaminating or contaminated in depth, it has to be removed first.

Does an anti-slip texture complicate cleaning in food processing?

It changes it. A fine, even texture, coved bases and a suitable cleaning method reconcile hygiene and traction. The test area is there precisely to validate that balance with the cleaning crew.