HMK R766 Anti-Slip Treatment for Natural Stone

HMK® R766 is designed for marble, limestone, travertine, terrazzo, and other calcareous natural stone surfaces. Because stone composition, density, and finish can affect how the treatment reacts, a professional should test a sample tile or inconspicuous area before treating the full installation.

HMK R766 creates microscopic pores in the stone surface. These pores increase traction when the floor is wet, helping restrict slipping and sliding without adding a separate textured layer. The amount of improvement depends on the stone and should be confirmed through professional testing.

No. HMK R766 is a surface-modifying anti-slip treatment rather than a topical anti-slip floor coating or anti-slip sealer. It works by changing the existing calcareous stone surface through microscopic pores, so the treated stone itself provides the increased wet traction.

Yes. HMK states that R766 alters both the gloss and color of the treated stone as it creates microscopic pores. Because the visual change depends on the material and finish, testing a sample or hidden area is essential before treating an entire floor or installation.

No. HMK designates R766 for professional use only because surface preparation, even application, timing, and rinsing are essential to the result. A trained applicator should test the treatment first, evaluate the traction and appearance changes, and confirm that the selected stone is suitable.

The stone must first be thoroughly cleaned and dry to the touch. A professional applies R766 undiluted and evenly, prevents foam or drying during the 5 to 10 minute process, then washes with diluted HMK R155 and rinses thoroughly. Uneven application or foam development may require mechanical refinishing.

Use R766 in a well-ventilated area between 50°F and 80°F, away from direct sunlight. Protect adjacent acid-sensitive surfaces, metals, plastics, and glass, and wear suitable protective clothing because the product is highly toxic and corrosive. Underfloor heating must be switched off before treatment.

One liter of HMK R766 covers approximately 300 to 400 square feet, depending on the stone and its response to treatment. Testing helps determine actual coverage and whether a repeated treatment is needed to further increase slip resistance on the selected surface.