Why do surfaces become slippery when liquid is present?

 

Lots of natural materials such as ceramic, granite, terrazzo, slate, porcelain tile, concrete and bathtubs have natural voids in them. The larger the void, the more the surface of that material is slip resistant. This void makes a tread for you to walk on. Ceramic or glazed tile, as well as porcelain, are often coated to create a shiny finished look to a floor. These coatings fill in the natural void up to 70%. When the surface is wet, the water fills in the remaining 30% of the void and that is why a floor becomes slippery not allowing any space between the water and the bottom of your foot creating a hydroplane effect.

 

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Category: Non Slip

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