Ceramica Cleopatra Group

The ceramic glossary

What do these words mean?
A brief guide to learn the basic terms of the ceramic world.


Abrasion resistance
The ability of a floor to stand up to strain caused by the friction of foot traffic.
The amount of water a tile can absorb. Generally, ceramic tiles have a low water absorption due to the tightness of the surface.


Bicottura tiles
Ceramic tiles made with a single firing of unglazed tiles, then coated with glaze and fired again. Bicottura tiles usually have a refined finish with deeper details and brighter colors than Monocottura tiles, but because of their softness, they better suit wall and backsplash applications.


Ceramic tiles
Surfaces made with different clays fired at a high temperature. Their surface may be glazed or unglazed.


The visual appearance of a tile surface. This may be polished, glazed or unglazed, textured, embossed, matte.
Fire resistance
Tile that has a low hardness rating and is usually not recommended for floor use.
Fire resistance
Tiles ability to resist fire. Ceramic doesn’t burn and release any kind of harmful substances when it gets in touch with flames.


Surface layer made with natural or artificial colors through a second firing process.
Tiles finish that reduces the risk of slippery.
The material used during tiling to fill the joints between the tiles.


Honed Finish
A satin-smooth surface finish with little or no gloss.


A semi polished finish with a shiny texture giving surface an eye-catching appearance.


A metamorphic rock possessing a distinctive crystalline texture. Marble is typically softer than granite, and available in a wide spectrum of color and veining.


PEI rating
Porcelain Enamel Institute rating scale which express the amount of foot traffic a tile can handle.
A high-gloss finish that brings out the full color and character of a stone.
Porcelain stoneware
Porcelain tile is fired at a much higher temperature than regular ceramic tile. This makes porcelain tile much harder and denser than other tile products. Because of its highly durable make-up, porcelain is more resistant to scratches and chips and can withstand temperature extremes. Also, because porcelain is non-porous, it's very stain resistant, has very low water absorption ratings and thus can be used for interior and exterior applications as well as heavy-use and commercial areas.


Manufacturing process assuring each tiles the same size and shape desired. This reduces tile joints, allowing for the creation of continuous surfaces.


Wall Tile
Tile that has a low hardness rating and is usually not recommended for floor use.

Our advices

Non-slip tiles.

What if you want to know the anti-slip level of your ceramic tiles? There are four common tests. You don’t have to do it them on your own. Just pay attention to the Coefficient of Friction (CoF), the Floor Surface Roughness (Rz), the R rating and the ABC rating. The higher the value is the higher anti-slip resistance you’ll have.

What’s PEI Rating?

When choosing a ceramic surface is very important to pay attention to the PEI Rating. But, what’s PEI Rating? The PEI helps you determine the hardness and the durability of ceramic tiles. A PEI 0 tile is better for wall, PEI 3 for residential spaces like living room and kitchen, PEI 5 tiles suits perfectly in commercial spaces where a higher resistance to abrasion and foot traffic is required.

How to clean porcelain tiles?

Cleaning porcelain tiles is very easy. You just need a vacuum cleaner and a wet microfiber pad or mop for everyday maintenance. Once a week, add a mild detergent. And remember, ceramic is resistant to chemical agents, so don’t worry if you need something more aggressive to remove persistent stains.