The most effective ways to make tile non-slip include applying anti-slip coatings or sealers with grit additives, using adhesive grip tape, choosing textured mats, or treating the surface with an etching solution that creates microscopic traction. Which method works best depends on where the tile is, whether it gets wet regularly, and how much you want to change the tile’s appearance.
Before diving into solutions, it helps to understand why tile gets slippery. Polished porcelain and glazed ceramic tiles have smooth surfaces that lose nearly all friction when wet. Porcelain absorbs less than 0.5% of water, meaning moisture sits on top rather than soaking in. That thin film of water between your foot and the tile is what causes slips. Any effective treatment either roughens the surface, adds a textured layer on top, or both.
Grit Additives Mixed Into Sealers
One of the most popular DIY approaches is mixing a slip-resistant grit additive into a clear floor sealer or paint. These additives are fine polymer or aluminum oxide particles that settle into the coating as it dries, creating a subtly textured finish. Products like SharkGrip and Sure-Step are widely available at hardware stores.
The ratio matters. W. R. Meadows, which manufactures Sure-Step, recommends a minimum of 16 ounces of additive per five-gallon pail of sealer, and no more than eight ounces per gallon. Too little grit won’t provide meaningful traction. Too much makes the surface uncomfortably rough and harder to clean. Start at the minimum ratio, test a small area, and increase if the surface still feels slick when wet.
To apply, clean the tile thoroughly first, removing any wax, soap residue, or old sealant. Stir the additive into the sealer frequently while working, since particles settle quickly. Roll or brush on a thin, even coat and let it cure fully before walking on it. Most sealers need 24 to 48 hours. This method works well on bathroom floors, laundry rooms, and entryways, and the result is nearly invisible on most tile colors.
Anti-Slip Coatings and Etching Treatments
Liquid anti-slip treatments take a different approach. Instead of adding material on top, acid-based etching solutions chemically alter the tile’s surface, creating microscopic pores and channels that increase grip. These products are applied, left to sit for a set time (typically 5 to 15 minutes depending on the product), then rinsed off. The effect is invisible to the eye but noticeable underfoot, especially when wet.
Etching works best on natural stone and unglazed ceramic. On porcelain and heavily glazed tiles, results can be inconsistent because the dense surface resists the acid. If you have polished porcelain, a coating-based approach often delivers better results than etching alone. Some commercial-grade etching products are formulated specifically for porcelain, but they require careful timing to avoid damaging the glaze unevenly.
Clear anti-slip coatings that you roll or spray on offer another option. These leave a thin, transparent grip layer that lasts anywhere from several months to a couple of years depending on foot traffic. They’re easier to reapply than grit-in-sealer methods but may need refreshing more often in high-use areas like kitchen floors or shower entries.
Anti-Slip Tape and Treads
Adhesive anti-slip tape is the fastest fix. You peel, stick, and immediately have traction. It comes in various widths and colors, including transparent versions designed for indoor tile. The tape surface is embedded with abrasive grit, similar to fine sandpaper, and provides a noticeable increase in friction even on wet surfaces.
The tradeoff is appearance and durability. Tape edges can peel up over time, especially in showers or areas with standing water. It also collects dirt along its borders. For a bathroom floor, tape works well as a temporary solution or in specific high-risk spots like directly outside a shower. For a more permanent fix, coatings or grit additives are better choices. If you use tape, clean the tile with rubbing alcohol before application to ensure the adhesive bonds properly.
Mats, Rugs, and Removable Solutions
Sometimes the simplest approach is the right one. Non-slip bath mats with suction cups, rubber-backed area rugs, and interlocking rubber tiles all add traction without altering your tile permanently. This is especially practical for renters or anyone who doesn’t want to commit to a surface treatment.
The key detail people overlook: the mat or rug itself needs a non-slip backing. A rug without grip on its underside just becomes another sliding hazard. Look for mats with solid rubber or suction-cup bottoms rather than foam, which compresses and loses grip over time. In showers, choose mats with drainage holes so water doesn’t pool underneath and create mildew.
How Slip Resistance Is Measured
If you’re shopping for new tile or evaluating how effective a treatment was, two numbers are worth knowing. The first is the Dynamic Coefficient of Friction, or DCOF. The Tile Council of North America requires that tiles intended for wet interior spaces have a wet DCOF of 0.42 or higher. Tiles below that threshold, including most polished porcelain, should only be installed where they’ll stay dry. When buying tile, this number is often listed on the spec sheet.
The second is the Pendulum Test Value (PTV), commonly used in the UK and Australia. A PTV of 36 or above is considered low slip potential, meaning roughly a one-in-a-million chance of slipping. Anything between 25 and 35 is moderate risk, and below 24 is high risk. If you hire a professional to assess your floor, they may use one of these scales.
The ADA doesn’t mandate a specific friction number but does require that floor surfaces in accessible spaces be “stable, firm, and slip-resistant.” Advisory guidelines from the Access Board recommend a static coefficient of friction of 0.6 for flat walking surfaces and 0.8 for ramps. These benchmarks are useful if you’re treating floors in a business, rental property, or home with accessibility needs.
Choosing the Right Method for Your Space
For bathroom floors that get wet daily, a grit additive mixed into a clear sealer offers the best balance of durability, appearance, and grip. It lasts for years with normal cleaning and doesn’t change the look of the tile dramatically.
For showers and pool surrounds where water is constant, a professional-grade etching treatment or a dedicated anti-slip coating designed for submerged or frequently wet surfaces will hold up better than tape or mats. Some homeowners combine etching with a grit sealer for maximum traction in these areas.
For kitchens and entryways where spills are occasional rather than constant, a clear anti-slip coating or a well-placed rubber-backed rug may be all you need.
For renters or anyone who wants a reversible solution, suction-cup bath mats and rubber-backed rugs are the way to go. Adhesive tape is a middle ground: semi-permanent, easy to remove, but not invisible.
Maintenance After Treatment
Whatever method you choose, how you clean the floor afterward affects how long the traction lasts. Soap-based and wax-based cleaners leave a film that fills in the microscopic texture you just created, making the surface slippery again over time. Use a pH-neutral cleaner without wax or polish. A simple mix of warm water and white vinegar works for routine cleaning.
Grit sealers and etching treatments gradually wear down under heavy foot traffic. Plan to reapply every one to three years depending on use. You’ll notice the surface starting to feel smoother when wet, which is your signal to retreat. Anti-slip tape should be replaced as soon as edges start lifting, since partially peeled tape can be a tripping hazard on its own.