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What’s Porcelain Tile, What’s Ceramic Tile?

24x24 White Porcelain Tile
Decorative Accent Tile Heritage Mono
Heritage Mono

Available in every color and style, modern porcelain tiles offer the beauty of natural flooring materials for a lower cost and minimum care.

Modern porcelain tiles are the most popular flooring materials across the world, replacing all other traditional flooring products. Today Marble, travertine, hardwood, and even industrial concrete floors are available in their porcelain version. Same exact look for a lower cost and minimum care.  

If you’re going to remodel your house or just a part of it that involves tiles for floors or walls, we would like to explain the basics of ceramic tiles which will help you understand the product that you may want to use for your project. Based off of our experience with customers, you’re most likely more curious about porcelain than you are ceramic. But, we would like to start off with ceramic tiles to provide a better understanding. 

Ceramic Tile or Porcelain Tile?

While almost everybody is somewhat familiar with the term ceramic and porcelain, many people don’t know the difference between the two. When it comes to choosing floor or wall tiles, ceramic or porcelain becomes the confusing question. There is one simple answer: Porcelain is the name for the ceramic with water absorption below 0.5%. This is a great choice for floors and walls whereas, ceramic tiles are limited to just for wall. 

According to science textbooks and dictionaries, “Ceramics are nonmetallic and inorganic solids that aren’t metal or based on carbon compounds.”

As a product, porcelain, in its entirety, is categorized under ceramic products.

How are ceramic tiles made?

The main ingredients of ceramic tiles are clay, sand, and water. First, clay and sand are grounded into tiny particles and mixed with water and various other elements. The mixture goes under a hydraulic press where it gets its tile shape and hardens. Soon after, the tiles move to a dryer prior to a priming process, called engobing. Once engobing is done, our tile is ready for the inkjet printing, where the desired colors and the designs are printed onto the tile. Eventually, printed tiles are covered with glaze and then fired. 

Porcelain Tiles

When clay, sand and water mix is strengthened with cement and fired into much higher temperatures, ceramic tile becomes harder, stronger and less absorbent. This is the ceramic tile that we call porcelain tile. For a ceramic tile to be considered a porcelain tile, it must have 0.5% or below water absorption. 

What is glazed porcelain?

The word glaze comes from the word glass. This is a non-porous layer that contains liquified glass and covers and fills the surface of the tile. The glaze can be either shiny or not matte.

What is polished porcelain tile?

Shiny glaze doesn’t have a solid gloss like marble. When looked at from a certain angle, it ripples like an orange peel and is also slippery.

Polished porcelain tiles go under a brushing machine where they are polished like marble. Then, a nano sealing process covers the surface. Nano sealing also helps tile gain friction. Therefore, polished tiles are significantly less slippery than high gloss glazed tiles. 

What is red body tile?

The ceramic tile’s body is traditionally in a red color due to the clay’s original color. The term red body refers to ceramic tile.

What is white body tile?

The white body is a type of ceramic used for wall tiles that weigh lighter than traditional ceramic and porcelain tiles. White body tiles stick easier to walls.

Since many people won’t want to buy ceramic tiles, some companies prefer to call ceramic wall tiles, “white body tile.” 

What is PEI?

PEI is an abrasion test that measures the wear and tear of the surface of a tile on a scale 1 to 5. 

PEI-V: Heavy traffic commercial areas such as airports, shopping malls, hospitals, etc.

PEI-IV: Commercial areas such as hotel lobbies, restaurants, etc.

PEI-III Residential areas.

Porcelain tiles are extremely hard products. Regardless of the PEI number, they offer great longevity against wear and tear. Additionally, the PEI is measured with a machine that uses ball bearings. Therefore, color is a factor that directly affects the PEI value of a tile. Contrary to popular belief, a higher number of PEI doesn’t make the tiles more durable. What makes the tiles more durable is the installation. Manufacturers today are more focused on a new test that measures the stain resistance of the tiles on a scale of 1 to 7. Stain resistance is indicated with the letter C.

Minimum Grout Lines 

Factory recommended grout lines are 2 millimeters (5/64″). Most common practice is 1/16″. 

Please click here to read our blog about grout lines for more detailed information.

Are matte surface tiles less slippery?

Definitely not. This is a common misconception. Whether glossy or matte, glazed tiles are slippery due to the liquid glass composition of the glaze. 

Some tiles are manufactured with a textured surface which provides extra friction. However, this friction is measured with a test called dynamic coefficiency of friction (DCOF). Tiles with a DCOF value equal to or over 0.42 meets the minimum requirement for wet surfaces. Tiles with the best performance in wet areas are called R11.

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