Technical guide

Cleaning Products and PTV Performance

Cleaning products are typically chosen for cleanliness and infection-control performance, with slip resistance an afterthought or absent consideration. But cleaning chemistry directly affects in-service PTV — sometimes by tens of points either way. This is one of the most consistently overlooked factors in UK floor risk management.

How cleaning chemistry affects PTV

Several mechanisms operate:

  • Polishing — products containing waxes or polymers gradually fill or smooth surface texture, producing a high-shine finish but reducing wet PTV
  • Residue accumulation — under-rinsed detergents leave a thin film that is initially undetectable but progressively reduces friction, particularly when re-wetted
  • Chemical attack — strong caustic or acidic regimes can degrade the engineered surface chemistry of vinyl, resin and some tile finishes
  • Sealer wear — protective sealers worn off through cleaning expose a different (sometimes lower-friction) underlying surface
  • Crystallisation — some cleaning products leave crystalline residues that affect surface texture as they dry

Problem product categories

The cleaning products most consistently associated with PTV reduction are:

  • Spray-and-buff polishes for vinyl and tile — high shine, reduced wet PTV
  • Crystallising waxes — popular in older specifications, problematic for engineered slip surfaces
  • Quaternary ammonium disinfectants left to dry without rinsing — residue accumulation
  • Strong alkaline degreasers in food-prep environments without thorough rinse — chemistry mismatch with some flooring substrates
  • Sugar-based foam cleaners that leave residue when not properly rinsed
  • Polish-loaded all-in-one cleaners marketed as labour-saving but adding wax to floors not designed for it

Products that support slip resistance

Products designed for slip-resistant flooring typically:

  • Are residue-free or very low residue
  • Do not contain wax or polishing polymers
  • Have a neutral or near-neutral pH
  • Are diluted at a specific use concentration with a defined rinsing protocol
  • Are tested by the manufacturer against pendulum performance and the data published

Several major UK cleaning-product suppliers publish slip-resistance compatibility data; this should be referenced when product selection is reviewed.

The 'day one vs day seven' problem

One of the most reliable findings in service-environment pendulum testing is a floor that meets specification immediately after a deep clean but fails several days into the cleaning cycle. The post-clean PTV is not the PTV that customers and staff actually walk on. Testing toward the end of the cleaning cycle — not immediately after — captures in-service performance.

In claim-defence work, capturing pendulum data both immediately post-clean and toward the end of the cycle is sometimes useful to demonstrate the variability the operating regime produces.

Cleaning machine action

Mechanical scrubbing machines exert friction action on the floor surface itself, gradually polishing surfaces over years of use. Different machine types — soft pad, abrasive pad, brush — affect the underlying surface differently. Where pendulum testing identifies a polished area not explained by foot-traffic alone, the cleaning-machine pad type and pressure are worth investigating.

Audit and intervention

Where pendulum testing identifies in-service PTV below specification, the cleaning regime is one of the first investigation paths. A typical intervention sequence:

  1. Document the products in current use, dilution and rinsing protocol
  2. Compare against the floor manufacturer's compatibility recommendations
  3. Trial a different product for a defined period
  4. Re-test pendulum to verify the change has affected PTV
  5. Roll out the change to the wider site, with documented rationale

This produces both the operational improvement and the documentary record that the operator identified and addressed the issue.

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