Every tile has a COF (coefficient of friction) rating between 0 and 1. You want a high COF for a wet area and higher for elderly. Like .6 or higher. You are right to question your friend's choice, have him look for tiles that are rated for showers. Answer from AnnieC131313 on reddit.com
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Reddit
reddit.com › r/tile › bathroom floor slippery, porcelain tile, anything i can put on it to make it more safe?
r/Tile on Reddit: Bathroom floor slippery, porcelain tile, anything I can put on it to make it more safe?
September 7, 2024 - Sorry. That might be too far. Continue this thread Continue this thread Continue this thread ... Yes, matte porcelain. ... That tile should have never been put on a bathroom floor.
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Reddit
reddit.com › r/homeimprovement › large format porcelain tiles too slippery for shower floor material?
r/HomeImprovement on Reddit: Large format porcelain tiles too slippery for shower floor material?
December 7, 2021 -

I’m doing my first bathroom renovation. I plan to use large format (24x48) polished porcelain tile on the floor and walls. I’d planned to use that same tile on the shower floor but now I’m thinking it will be very slippery when soap and water hit it. Might switch to smaller and/or rougher tiles for the shower floor. Am I overthinking or do I need a safer alternative?

It’s a walk-in shower with no ledge.

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Reddit
reddit.com › r/tile › anti-slip solutions
r/Tile on Reddit: Anti-Slip Solutions
December 14, 2020 -

Anyone have experience or have a suggestion what to put down to make the polished porcelain tiles not slippery when wet? This is for 24x48 polished porcelain tiles I want to put in my bathroom, including my shower floor.

I’ve seen things from slip doctors as well as miracle 511. Thoughts or suggestions? Don’t want to use a shower mat or stickies if I can avoid it.

PEI Rating 4 DCOF <.42

I‘ve heard mixed reviews of polished tiles getting slippery when wet, whereas others say it doesn’t matter. So not too sure.

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Reddit
reddit.com › r/tile › how to make an extremely slippery porcelain tile non-slip?
r/Tile on Reddit: How to make an extremely slippery Porcelain tile Non-Slip?
December 16, 2022 - If the tile are slippery when they are dry then anti-slip won’t help. You would have to apply some type of gritty or textured coating, which would totally change the look of the tile. Perhaps just a nice rug instead? ... Sure step non slip. Activates when wet. Not a coating ,works when wet, it’s phenomenal. Won’t change the appearance of the tiles and dramatically increase the DCOF.
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Reddit
reddit.com › r/homeimprovement › porcelain vs ceramic tile in the shower?
r/HomeImprovement on Reddit: Porcelain vs Ceramic tile in the shower?
October 8, 2023 -

For some reason I missed the fact that my leading choice of zellige-look tile is ceramic and not porcelain. I thought it was porcelain. So now I’m back to square one of trying to choose a tile! 😩 it’s been the bane of my existance! I’m reading that ceramic isn’t ideal in showers bc it needs to be sealed and can absorb water right? Any tile experts here?

Find elsewhere
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Reddit
reddit.com › r/homeimprovement › help! slippery porcelain tiles!
r/HomeImprovement on Reddit: help! Slippery porcelain tiles!
June 11, 2018 -

We had a lovely patio built this spring which we had finished in an outdoor white porcelain tile. It’s turning out to be lethal when wet unless meticulously clean (which is a bit of an issue in a British garden) - is there anything that can be applied to them to improve this or do we just have to accept it?

This comes up as a suggested product but interested to hear if anyone had used it - https://www.slipdoctors.co.uk/products/stone-grip-non-slip-treatment?variant=19608558010461&currency=GBP&gclid=EAIaIQobChMIxp36v6iN5AIVyOFRCh2X1AF3EAQYAiABEgIL3PD_BwE

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Reddit
reddit.com › r/homeimprovement › need advice on slippery outdoor tiles
r/HomeImprovement on Reddit: Need advice on slippery outdoor tiles
December 22, 2021 -

Hey everyone -

So my family is putting in a pool in our backyard, and we have an existing back patio that is made of typical outdoor porcelain tiles. The problem is that these tiles become super slippery whenever they get wet, and pools have a bad habit of making things wet.

We brought in a contractor, thinking we could have Stone Grip or something similar applied, but they reached out to a bunch of places and couldn't find anything that works for porcelain tiles. Any ideas on what we could do here? I can just see our kids running out of the pool and cracking their heads on this tile :(

Any help is really appreciated, thanks!

https://imgur.com/a/KtNwKFu

https://imgur.com/a/qn6X7E6

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Reddit
reddit.com › r/homeimprovement › porcelain vs ceramic tile questions. waterproof? interior vs exterior? gloss vs matte?
r/HomeImprovement on Reddit: Porcelain vs Ceramic tile questions. Waterproof? Interior vs Exterior? Gloss vs Matte?
January 23, 2022 -
  1. I'm looking around Floor & Decor and noticed that Porcelain tiles are all waterproof but say interior only. The ceramic tiles are not waterproof but say exterior / interior. Shouldn't the waterproof ones be exterior also? I don't plan tiling anything outside, just curious, about shower walls and bathroom floors

  2. Is glossy/polished porcelain tile safe for bathroom floors? Or will it be slippery when wet?

  3. Some tiles are different thickness. How is that difference made up when used in adjacent rooms? Thicker thin-set?

Thanks

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Reddit
reddit.com › r/tile › thoughts on this for a bathroom floor - glossy porcelain mosaic. too slippery (have little kids)?
r/Tile on Reddit: Thoughts on this for a bathroom floor - glossy porcelain mosaic. Too slippery (have little kids)?
March 20, 2021 - My hesitation is if it would be too slippery for a family bathroom floor used daily. I had a toddler if that makes a difference. Or would the grout lines provide enough grip? ... Tile is slippery in socks.
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Quora
quora.com › Are-porcelain-floor-tiles-slippery
Are porcelain floor tiles slippery? - Quora
Answer (1 of 6): It varies. When we did our bathroom & shower floors, we actually bought 1 sample tile of about a half-dozen that we were considering to see which was least slippery. Generally the ‘gloss=slippery; matte = less slippery’ is a good rule. But not totally reliable.
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Reddit
reddit.com › r/construction › making very slippery porcelain tiles non slip?
r/Construction on Reddit: Making very slippery porcelain tiles non slip?
January 11, 2021 - Anybody working in this field is welcome! Carpentry, concrete, steel, plumbing, HVAC, electrical, landscaping, equipment operators, etc. ... Locked post. New comments cannot be posted. Share ... Yes. There are chemical etch liquids that you can apply. I've used InvisaTread and was happy with the results. Google anti slip tile treatment
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Slip No More
slipnomore.com › home › unveiling the truth: are porcelain tiles slippery?
Are Porcelain Tiles Slippery? Unveiling the Truth
November 17, 2023 - This misconception often leads ... the truth is that the slip resistance of porcelain tiles can vary significantly depending on factors such as surface texture, finish, and additional non-slip treatments....
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Solidshape
solidshape.com › home › design & care blog › tile › porcelain › is porcelain tile slippery? safety considerations for homes
Is Porcelain Tile Slippery? Safety Considerations for Homes - Solidshape
June 30, 2025 - These tiles offer a wide range ... sophisticated taste and vision. However, one common concern is their potential for slipperiness, especially in areas prone to moisture....
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Reddit
reddit.com › r/tile › how do you prevent tiles from becoming slippery, especially in wet areas like bathrooms?
r/Tile on Reddit: How do you prevent tiles from becoming slippery, especially in wet areas like bathrooms?
August 31, 2023 -

I've been dealing with this annoying issue lately: slippery tiles in the bathroom. Like seriously, it's like walking on ice sometimes! So, I'm reaching out to y'all for some advice.

I've tried a few things like those stick-on grippy things and even a fancy non-slip mat, but nothing seems to really do the trick. Do any of you have magic solutions to this problem? I'm all ears!

Also, if you've got any horror stories about slipping and sliding in the bathroom, feel free to share. Let's commiserate together, haha!

Thanks in advance for any tips or tricks you can throw my way.

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Overlandceramics
overlandceramics.com › home › news › is polished porcelain tile slippery?
Is Polished Porcelain Tile Slippery? | Overland
July 12, 2024 - Furthermore, no matter how old you are, the possibility of slipping from glossy floor tiles is almost much the same as it would with matte porcelain tiles, because multiple factors could affect the slipperiness of the flooring.