16/07/2025

In the modern building materials industry, especially in the field of ceramic tiles and high-end ceramics, the surface is more than just decoration – it determines in durability, quality, aesthetics, and long-term usability. Behind the polished beauty of every tile lies a complex technological process, in which frit glaze is the key element that defines the “appearance” of the product.

What is Frit?

Frit is a type of vitrified inorganic material, created by melting a mixture of minerals (such as silica, metal oxides, fluxes, etc.) at high temperatures ranging from 1,100°C to 1,500°C. The molten mixture is then rapidly cooled (thermal shock) to form small, non-crystalline glass granules. These are then finely ground to be used as the primary ingredient in surface glazes for ceramic tiles, pottery, and engineered stone.

Thanks to the vitrification process, frit becomes more stable than untreated raw materials, offering key advantages such as:

  • Producing uniform, glossy or matte colors as desired.

  • Enhancing adhesion and preventing glaze cracking during firing.

  • Lowering the required firing temperature, reducing energy costs.

  • Minimizing defects like glaze corrosion, blistering, or peeling caused by inconsistent material composition.

Structure and Technical Properties of Frit

Frit is the result of a scientific blend of material science and ceramic firing technology. Its main components may include:

  • Silica (SiO₂): The base of the glass structure, providing glaze strength.

  • Boron (B₂O₃) and Alumina (Al₂O₃): Reduce melting point and increase hardness.

  • Metal oxides (Na₂O, K₂O, CaO, ZnO…): Adjust thermal expansion and adhesion.

  • Colorants (iron oxide, cobalt oxide, titanium oxide…): Provide specific glaze colors.

  • Opacifiers (ZrO₂, SnO₂…): Create opacity and special effects like stone or concrete imitation.

Depending on the application (glossy, matte, 3D effects…), frit formulas are precisely adjusted for optimal performance.

The Role of Frit in Premium Tile Manufacturing

Frit is not just a material – it’s a cornerstone in enhancing the overall quality of ceramic tiles.

1. Enhancing Aesthetic Value

Frit helps create unique visual effects such as:

  • Mirror-like glossy glaze, reflecting light for luxurious spaces.

  • Matte or semi-gloss finishes, for a more natural and modern feel.

  • Special effects glazes (stone veins, watercolor effects, 3D depth, glitter, flake-like textures), adding uniqueness and premium appeal.

2. Improving Durability and Lifespan

Thanks to its vitrified structure, frit contributes to tile surfaces that are:

  • Scratch-resistant and stain-resistant.

  • Resistant to mild chemicals, water, and mold.

  • Colorfast and fade-resistant over time.

3. Optimizing Production Processes

Frit enables:

  • Fewer firing defects: no cracking or glaze detachment.

  • Optimized firing speed and reduced fuel consumption.

  • Easier color matching and formula adjustments based on specific requirements.

Why Choose Phu Son Frit?

Phu Son Frit Technology JSC is one of the pioneers in frit manufacturing in Vietnam. Beyond simply providing products, Phu Son offers comprehensive solutions for tile factories and construction material producers.

Here’s why working with Phu Son Frit is a smart choice:

  • Stable quality – Optimized formula
    Strict control from raw material selection to melting and grinding ensures high consistency across batches.

  • Diverse product range – Meeting every need
    From glossy, matte, and special effect glazes to advanced frit lines for engineered stone and technical tiles.

  • On-site technical support
    Experienced engineers assist with formula adjustments tailored to each factory’s kiln, equipment, and design goals.

  • Competitive pricing – Flexible order sizes
    Phu Son optimizes production to keep input costs reasonable, supporting both large-scale and sample testing orders.

Moving Towards Green, Sustainable Products

As the construction industry shifts toward sustainable practices, lead-free and non-toxic frits are gaining importance. Phu Son is actively developing:

  • Developing lead-free frit products.

  • Offering eco-friendly, user-safe formulations.

  • Ensuring compliance with international standards (e.g., Europe, USA, Japan) and TCVN 7132:2002.

Conclusion

Frit glaze is like a beautiful yet durable coat that elevates both the appearance and functional value of each tile. Investing in high-quality frit not only helps manufacturers enhance product quality but also streamlines production, minimizes technical risks, and builds a strong competitive edge in an increasingly demanding market.

With Phu Son Frit, customers gain not just a product, but access to a complete technical solution – a long-term partner in business success and innovation.