Melting control, stability and compatibility in cooking
Ceramic frits formulated to control the fusion, stability and behavior of the glaze, adapted to the technical conditions of each production process.
The technical basis of the enameling system
Frits are a fundamental component of glaze, responsible for regulating fusion, the formation of the glassy phase, and the system's behavior during firing. At Kerafrit, we develop frits with compositions tailored to provide thermal stability, chemical compatibility, and control over the final finish.
We work with frits adapted to different temperature ranges, types of ceramic paste, and firing curves, adjusting the coefficient of expansion, viscosity, and reactivity. This approach allows us to offer reliable technical solutions designed to integrate seamlessly into each client's actual production conditions.
They regulate the temperature and behavior of the enamel during firing.
Adjusted to paste, slip and glaze for a stable assembly.
Controlled behavior in demanding and repetitive industrial cycles.
Formulations tailored to the actual production process, technology, and parameters.
Wall Double Fast Firing
Transparent/Opaque/Matte/Gloss
Wall Single Firing (Porosa)
Transparent/Opaque/Matte/Gloss
Floor Single Firing
Transparent/Opaque/Matte/Gloss
Gres/Porcelain
Transparent/Opaque/Matte/Gloss
Engobe
Transparent/Opaque/Matte/Gloss
Specials
Transparent/Opaque/Matte/Gloss
Medium particle size (D50)
10 – 25 µm (depending on reference and application)
Particle size distribution (D90)
≤ 45 µm (fine grinding for wet applications)
Supply format
Micronized / Granulated (according to customer process)
Coefficient of thermal expansion (CTE 40–400 °C)
[5.0 – 11] ×10⁻⁶ K⁻¹ (adjustable to paste and system)
Softening temperature (Tr)
650 – 850 °C (depending on the type of fry)
Glass transition temperature (Tg)
500 – 650 °C
Recommended cooking range
950 – 1250 °C (low and high temperature)
Viscosity of the melt
Medium / Low (depending on formulation and end use)
Lead (Pb) content
Lead-free (no added Pb)
Chemical resistance (ISO 10545-13)
GA / GLA / GHA (depending on system and finish)
System compatibility
Glazes, engobes, granules and digital decoration
Production stability
High batch-to-batch reproducibility
Yes. We adjust the composition of the frit to work correctly, according to the customer's process.
Our ceramic frits are manufactured under strict quality control, guaranteeing stability, homogeneity, and reproducibility between batches. We monitor the composition and melting behavior of each production run, conducting laboratory tests and application trials to ensure consistent performance in industrial processes
A custom-made fryer is specifically tailored to the customer's pasta and cooking curve, improving compatibility and performance.
Yes. We adjust reactivity and fusion to adapt to short cycles without compromising stability or final quality.
Everything you need to know about ceramic frits
Fundamental vitreous material for the development of stable glazes.
Ceramic frits are insoluble vitreous compounds, obtained through high-temperature melting and subsequent rapid cooling of precise mixtures of raw materials. In the ceramic industry, their use is the central pillar for the formulation of glazes, engobes, and grits. By pre-melting the inorganic components, unstable chemical reactions and gas release during tile firing are eliminated, guaranteeing completely predictable thermal behavior free of surface defects (such as pinholes or bubbles) in fast production cycles.
At Kerafrit, we are specialists in the formulation and manufacture of ceramic frits, developing an extensive range of fluxing, opaque, transparent, and matte solutions. We design our frits to adapt exactly to the firing curves of any technology, from porous single-firing to technical porcelain. Their perfect integration ensures optimal rheological stability on glazing lines, allowing factories to maximize their yield and obtain finishes of the highest technical quality.