Methods of Grouting Porcelain Ceramic
Methods of Grouting Porcelain Ceramic

Methods of Grouting Porcelain Ceramic

One of the most commonly used building materials is ceramic, which is produced in various types and used as flooring and wall covering. Porcelain ceramic has unique features and has therefore gained more popularity. Porcelain ceramic for floors and walls is produced in different colors and sizes and with varying quality. In this article, we will review the methods of grouting porcelain ceramic.

What is Porcelain Ceramic Grouting?

Grouting is an important step in ceramic installation and can be done in two ways, depending on the grouting materials used. Typically, grouting is done with special powders based on cement; in some cases, epoxy grouting pastes are used for this purpose.

In the past, a mixture of cement and stone powder was commonly used for grouting porcelain ceramic; however, due to its lack of high strength, the grout would crack over time and the ceramic would become loose.

With technological advancements, better and new materials for grouting ceramics were introduced to the market, which had desirable properties and were a suitable replacement for previous grouts.

Grout powder is one of the grouting materials used for wall and floor porcelain ceramics. This powder is made from cement, enhancing polymers, waterproofing materials, mineral powders, and pigments.

Methods of Grouting Wall and Floor Porcelain Ceramic

Grouting is an easy task and one of the important steps in building construction, repair, and renovation of various buildings, which is done with special materials and tools.

Grouting porcelain ceramic walls and floors does not require special expertise; however, in some places like bathrooms and restrooms, it should be done professionally and with high precision.

These areas are in direct contact with water and are constantly exposed to high humidity, which can lead to water infiltration under the porcelain ceramic, causing problems.

Grouting methods vary, and the best method should be chosen according to the existing conditions. To perform grouting properly, important points must be observed in each method.

Types of Porcelain Ceramic Grouting

Porcelain ceramic grouting methods can be categorized into three types based on the materials used:

Grouting with White Cement and Stone Powder

Grouting is usually done three days after the ceramic installation. In this method, grout is made using cement and stone powder; the amount of this mortar is determined based on the number and size of the porcelain ceramics. The grout color should match and harmonize with the porcelain ceramic color.

Note that grouting wall and floor porcelain ceramics are different, and each has its specific grouting method. For example, for grouting floor porcelain ceramic, a liquid-like grout should be prepared, while for filling the gaps between wall porcelain ceramics, the grout should have a pasty form for easier application.

Grouting with Special Paste

Over time and with technological advancements, new products in the field of building materials have been produced that can make the job easier and replace traditional methods. Today, new and more practical materials have been introduced to the market, making grouting easier.

Waterproof grouting paste is among the newest materials, providing a suitable alternative for grouting ceramics and tiles. Using this type of paste for grouting porcelain ceramic is very easy, and it can be applied easily with a spatula or grouting pen.

Grouting with Special Powder

Using various grout powders is among the most common grouting methods, which can be easily done by adding some water. These materials are highly durable and prevent moisture from penetrating the underlying layers of the ceramic.

Therefore, these materials are considered the best grouting material for bathroom floor ceramics. Nano powder, antibacterial powder, waterproof powder, and colored powder are among the types of grout powder.

Practical Products for Porcelain Ceramic Grouting

Here are three important products for porcelain ceramic grouting:

Epotec + 2954

This product consists of adhesive, resin-based grout, and three-component epoxy. It should be used at 25 degrees Celsius and remains usable for up to 60 minutes after mixing. The storage conditions for Epotec + 2954 include keeping it at 5-35 degrees Celsius in its original packaging and in a dry place.

  • Important Features of Epotec + 2954:Solvent-free
  • Grout materials can be cleaned with water
  • High resistance to chemicals
  • Excellent adhesion
  • Usable on vertical surfaces
  • Easy troweling
  • Excellent mechanical properties
  • Stain-resistant
  • Low water absorption and hygienic
  • High resistance to wear and cracking
  • Easy to apply

Application and Safety Recommendations for Epotec + 2954 :

Key safety tips for using Epotec in grouting include ensuring proper ventilation of the work area, using gloves, goggles, or a mask, not mixing the product with water or solvent, and noting that exposure to ultraviolet rays can darken the color of the product. It should not be used for grouting porous stones and ceramics.

Prompt cleaning of excess materials from the surface is essential, as they harden over time and can only be removed with mechanical tools, which can damage the surface. In case of contact with eyes or skin, rinse them with plenty of water.

Ultrafuga Flex 2500

The grouting materials in Ultrafuga Flex 2500 are from Kalekim. This product should be stored in relatively dry conditions, and no more than 10 bags should be stacked.

Features of Ultrafuga Flex 2500 :

  • High wear resistance
  • Cement-based
  • Reinforced with silicone
  • Suitable filler for gaps from 2 to 20 millimeters
  • Easy to clean
  • Low water absorption with water-repellent properties
  • Suitable for areas in contact with water
  • Low shrinkage (no cracks or gaps)
  • Suitable compressive and flexural strength
  • Good resistance to freeze-thaw cycles
  • Quick curing
  • Smooth final surface

Application and Safety Recommendations for Ultrafuga Flex 2500:Ultrafuga Flex 2500 contains cement, so it can cause irritation to eyes, skin, and the respiratory system during use. To prevent this, using safety equipment such as gloves, goggles, and masks is essential when working with these materials.


The grouting materials in this product are PMA and include polymer-modified cement-based mortar. JOINT BOND is available in five colors: white, light gray, gray, dark gray, and black. It should be stored in dry, moisture-free conditions, and if unopened, it is usable for up to one year after the production date.

  • Features of JOINT BOND:High resistance to wear
  • Smooth and even surface
  • Improved properties
  • Various colors


Grouting in construction is done using various methods depending on the grouting materials, including white cement and stone powder, special paste, and special powder. In this article, we reviewed the methods of grouting porcelain ceramic and introduced some practical products for grouting porcelain ceramic walls and floors.