What does Dry-pressed tile mean?

A tile formed from a milled body mixture and shaped in molds under high pressure, and finally is designated as Group B in the international standards specifications.

What are ceramic tile?

Ceramic tiles are generally thin slab made from different types of clays, organic materials and/or other inorganic raw materials.

What is glaze?

Vitrified covering material that is impermeable.

What is polished surface?

Surface of ceramic tile which has been given a glossy finish through mechanical polishing as last stage of manufacture.

How does porcelain tile differ from ceramic tile?

Ceramic tiles are red clay tiles, shaped in molds under high pressure and fired at 1150 ⁰C. Porcelain tiles are specific type of ceramic tiles made from ball clay, shaped in molds under ultra-high pressure and fired at 1200 ⁰C, which gives it a low absorbing water percentage. Porcelain tile is the hardest and strongest available manufactured tile.

What are the benefits of Vitrified tile?

• • Stain resistance.
• • Resistant to wear and high temperatures.
• • Easy to clean and maintain.
• • Available in an incredible choice of shapes, designs, sizes and colors.
• • Durable—it lasts for years and years.

What is a Rectified tile?

Rectified tile is the tile that after firing is subjected to a precise mechanical grinding.

Installation Related Questions

What is tonality?

Tonality is the variation in color which appears during firing process.

What is Shade?

The shade of manufactured tiles varies depending on the firing process, because of the physiochemical reactions taking place under the kiln conditions.At GEMMA, glazed tiles are controlled in up to 7 shades. Shade N is the original tone, In addition, there are three lighter versions L1, L2 and L3, and also three darker ones, that are D1, D2 and D3. Recently, GEMMA creates a tile models that can have several faces to simulate the natural effect.

What does the caliber mean?

The caliber parameter applies only on floor tiles because, in the process of firing these tiles under high temperatures, shrinkage of the tile mass occurs. As a result, the tiles coming out of the kiln have slightly different dimensions for the same size.

How should we clean and maintain tile floors?

Maintaining tile floors is easy, usually only requiring normal cleaning such as Sweep or vacuum periodically. Use a damp cloth or sponge to clean spills.

What types of tile surfaces available?

GEMMA offers many types of surfaces, to fulfill customer needs. Currently, we offer: matte, glossy, structural, semi-polished, and finally polished tiles.

What types of products does GEMMA offer?

• (Group BIb) Glazed Porcelain Tile with water absorption 0.5 % < Ev ≤ 1 %.
• (Group BIIa) Floor ceramic Tile with water absorption 3 % < Ev ≤ 6 %.
• (Group BIII) Wall Ceramic Tile Tiles with water absorption, Ev > 10 %.

What is the working size?

The size of a tile determined by the manufacturer to which the actual size shall conform within specified permissible deviations

Technical Terms

Water absorption?

The percentage of water impregnating a tile, measured in accordance with International Standard ISO 10545-3. Water absorption is used to determine which groups the tiles belong to.

PEI parameter?

This is a parameter that determines the abrasion resistance class of tiles in accordance with International Standard ISO 10545-7.PEI class gives a guide to install the tiles according to its correct usage.

What is the resistance to staining of ceramic tiles?

The resistance to staining of ceramic tiles is tested in accordance with the ISO 10545-14 standard. Resistance to stain varies according to class which depends on how it is cleaned.