An existing tiled floor can often be made less slippery without replacing it, if the tiles are sound and the surface can be prepared to suit the coating. Effective industrial floor preparation for non-slip coatings includes removing contamination, repairing defects and creating a suitable surface for adhesion. For formal slip-resistance assessment, the Health and Safety Executive describes the Pendulum test, used in accordance with BS 7976 and UK Slip Resistance Group guidance, as the preferred method.
Keeping a sound tiled floor can avoid unnecessary removal, but coating over dirt, loose tiles or damaged grout risks an unreliable finish. Preparation matters as much as the coating: the surface needs to be clean, stable and compatible with the chosen system. This guide explains how cleaning, repairs and mechanical preparation contribute to the result, what to assess on an existing tiled floor, and how UK slip-resistance requirements inform the specification. It also explains when specialist industrial surface preparation can help before coating.
Key Takeaways
- For UK slip-resistance measurement, the Health and Safety Executive describes the Pendulum test used with BS 7976 and UK Slip Resistance Group guidance as the preferred method.
- Set out the test method and acceptance criteria in the specification when formal verification is needed.
- Match concrete cleaning, repairs and mechanical preparation to the surface condition so the coating has a consistent base.
- Allow for curing before heavy use: most epoxy and polyurethane systems need 24 to 48 hours to fully cure.
UK slip-resistance standards and compliance
A coating specification should account for the floor’s use, contamination and expected traffic, and state how slip resistance will be assessed.
Slip-resistance requirements
According to the Health and Safety Executive, the Pendulum test, used in accordance with BS 7976 and UK Slip Resistance Group guidance, is the preferred method for measuring floor slip resistance. For formal verification, specify the test method and acceptance criteria before work begins. This gives the installer a defined performance target and helps facilities teams compare results with the floor’s operational demands, such as pedestrian routes or vehicle traffic.
Performance in wet conditions
Water, cleaning residues and process spills can affect underfoot performance. Assess slip resistance in conditions that reflect the area’s use, including wet zones. Anti-slip aggregate added during paint application creates texture and improves grip, but its grade and distribution should suit the traffic and cleaning routine. Also consider chemical exposure and abrasion: harsh cleaning agents and repeated movement can wear the coating and change its resistance over time.
Wait for the specified curing period before allowing operational traffic. Early use can disturb the coating and aggregate, producing an uneven finish.
Slip-resistance verification
Include the test method and acceptance criteria in the project specification, then arrange Pendulum testing if formal verification is required. The result provides a measured basis for comparing the finished surface with the agreed target. Record the test locations and conditions, particularly where wet processes or cleaning chemicals affect specific areas.
After handover, check the floor during routine inspections. Look for worn coating, flattened texture, residue build-up and changes around turning points or entrances. These signs can show where traffic or maintenance may have reduced slip resistance, helping focus any follow-up assessment on areas that need attention.
Concrete cleaning, repairs and mechanical preparation
Effective industrial floor preparation for non-slip coatings starts with a clean, sound substrate and a method suited to the floor. Inspect the area before deciding how to prepare it.
Substrate and coating compatibility
Concrete, metal and mixed-material floors need preparation suited to both the substrate and coating. Remove oil, chemical residue, dampness and unsound coatings before priming, as contamination can weaken adhesion. Check joins for exposed edges and uneven repairs. On mixed floors, the primer and coating must suit both materials; differences in absorption and movement can otherwise affect the finish and its durability.
Preparation method comparisons
For industrial floor preparation for non-slip coatings, match the method to the existing surface. On concrete, mechanical grinding removes weak material and prepares the surface. Sound existing epoxy can usually be abraded before dust removal. Check tiles for loose units and damaged grout, then clean and abrade them carefully to avoid damaging edges. Coating over oil, chemical residue, dampness or loose material can cause peeling, so remove contaminants and repair defects first.
Pre-coating surface tests
Assess concrete moisture with a suitable test, porosity by observing water absorption, and strength by checking whether the surface is sound or friable. Test representative areas before choosing a primer. During grinding, use dust extraction, isolate the work area, and wear suitable respiratory, eye and hearing protection. Poor dust control can leave residue that weakens adhesion, while skipped tests may miss damp or weak concrete.
Required surface profile
There is no single surface profile for every anti-slip coating: follow the coating manufacturer’s requirements. Prepared concrete should be uniformly open, not polished smooth or excessively rough. A specialist can match mechanical preparation to the primer and coating, then remove dust before application. This provides a consistent base for the aggregate and helps maintain the intended appearance across vehicle routes, warehouses, kitchens and walkways.
Floor preparation before protective coatings
Industrial floor preparation for non-slip coatings starts by assessing the floor, its use and the coating system. A typical sequence is to remove contamination, repair defects, abrade the surface, extract dust and apply a compatible primer. Apply the coating and aggregate, then allow the system to cure before resuming loading or vehicle traffic.
- Assess use and condition. Map vehicle routes, loading points and exposed areas. Note oil, chemical spills, damp patches, existing coatings and changes between concrete and other substrates.
- Clean and repair. Remove grease, residue and loose material using a method suited to the floor. Repair cracks, spalled concrete and failed joints; a coating cannot stabilise a moving or unsound base.
- Prepare mechanically. Grind or abrade the surface to create a profile compatible with the selected primer. Remove coating remnants where they are loose or incompatible, and capture dust so it cannot obstruct adhesion.
- Check before coating. Confirm the substrate is clean, dry and sound, including around repairs and transitions. Treat remaining contamination or weak areas before proceeding, rather than covering them.
- Prime and coat. Apply a suitable primer, followed by the specified protective coating. Disperse anti-slip aggregate during application where the system requires it, maintaining an even texture across turning and loading areas.
- Protect the cure. Keep facilities’ traffic off the coated floor for the system’s stated curing period. Premature loading or vehicle movement can mark the finish and compromise its lasting performance.
For industrial floor preparation for non-slip coatings, adapt the sequence to the setting. A warehouse route exposed to vehicle traffic faces different abrasion and loading from a pedestrian walkway. Suitable preparation supports adhesion and helps the finished floor meet operational demands while retaining its intended appearance and texture.
For project-specific industrial surface preparation guidance, explore how the floor’s condition and use shape the preparation approach.
Surfprep: Brick cleaning
Surfprep was established in November 2000 and provides brick cleaning for facilities where soiling on external masonry needs attention alongside floor improvements. Cleaning surrounding brickwork can help keep entrances and adjacent areas presentable, while floor preparation remains focused on the coating substrate.
For suitable exterior surfaces, Surfprep’s Sand Jet is a gentle alternative to traditional sandblasting. It is a damp process and is not recommended indoors. Superheated steam cleaning uses a Thermatech machine and can suit other appropriate cleaning tasks; the right method depends on the material and its condition. Surfprep also cleans stone and wooden beams, with care needed around indoor wood because moisture can pose risks.
If cleaning brickwork or other surfaces is part of your facility project, contact Surfprep to discuss the work.
Plan the next step for your facility
Turn the floor assessment into a clear project brief: record the areas to be treated, how each space is used and the expected finish. This gives industrial floor preparation for non-slip coatings a practical starting point and keeps the scope focused on the facility’s operational needs.
Surfprep provides industrial surface preparation and related property maintenance, including brick cleaning, stone cleaning and wooden beam cleaning. These services address different surfaces and can complement a facilities plan, while keeping masonry and timber cleaning distinct from floor coating work.
For a discussion about your floor preparation requirements, contact Surfprep about floor preparation. A considered brief is a useful first step towards planning the work with confidence.
Frequently Asked Questions
Can an existing tiled floor be made less slippery without replacing it?
Often, yes, but assess more than the tile surface. Check door clearances, drainage falls and transitions to neighbouring floors, as a new coating can alter levels and affect doors or wheeled equipment. A small trial area can also show how the finish looks around tile joints and whether it suits the facility before work proceeds across the floor.
Can the coating be applied to any floor surface?
No. The coating system must suit the floor material and the conditions it will face. For example, a floor with movement joints needs a system that accommodates their function rather than bridging them rigidly. Consider cleaning chemicals, temperature changes and process-liquid exposure when choosing a coating, as these can affect performance even if the surface looks suitable.
How is slip resistance tested?
Testing measures surface performance under defined conditions, rather than relying on how the texture feels. For useful records, note the test method, exact location and whether the surface was dry or wet. Repeat assessments in comparable conditions so changes in readings can be judged against the same baseline, not differences in testing or floor cleanliness.
How long will it last?
A coated floor does not have one service life that applies in every setting. Follow the coating system’s maintenance instructions and keep a site log of cleaning products, spills and impact damage. A localised equipment mark, for example, may need a different response from gradual wear on a frequently used route. These records help facilities teams plan maintenance around actual use.
Is a more heavily textured floor always safer?
No. The useful texture depends on contaminants, footwear and cleaning equipment in the area. A profile that provides grip in one condition may be difficult to clean in another. Consider whether brushes, mops or scrubber equipment can reach the textured surface, then specify a finish that balances grip with the facility’s cleaning routine.
