Flow lime 40%

The high-efficiency dolomitic solution that extends the service life of steelmaking refractories, optimising the melting process and reducing maintenance costs.

Outstanding performance for your steel plant

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Flow Lime 40% is a micronised dolomitic product specifically formulated for the steel industry. When your process does not require the ultra-rapid action of Quicklime, this product offers the perfect balance between reactivity and refractory protection.

Its high magnesium oxide (MgO) content helps to saturate the slag, significantly reducing its aggressiveness towards refractory bricks.

The precisely controlled grain size (0-1 mm) ensures excellent flowability and uniform dispersion, while the high purity guarantees consistent results. Available in silo truck deliveries, Flow Lime 40% is the ideal choice for steelworks aiming for operational efficiency and cost optimisation.

Certified sustainability with EPD declaration

Our commitment to environmental sustainability is officially certified through our Environmental Product Declaration (EPD). This document, based on a rigorous Life Cycle Assessment (LCA), offers a transparent and scientific evaluation of our products’ environmental footprint.

Sustainability

Discover all the features of the Flow Lime 40% product and download the documentation

Supply formats
Grain sizeSilo truckDump truckBig bags
0-1 mm✅❌❌
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Cutting-edge production process for high-purity product

Soft burning using biomass fuel, combined with our exclusive manufacturing method, ensures a product of exceptional quality, characterised by high purity, consistent MgO content, and an optimised grain size distribution to maximise flowability in pneumatic conveying.
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Dedicated services for the steel industry

We offer far more than just a product. Our team of specialised technicians is available for on-site visits and plant assessments, identifying the most effective solution for your production process.

We can customise Flow Lime 40% to meet your specific technical requirements, optimising the MgO content for your needs. We also design dedicated systems for the storage and dosing of the product directly within your facilities, ensuring uninterrupted operations.
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Explore all other lime-based products
in the Fassa Bortolo Lime System

Agricalce Dolomitic Lime

Available in various grain sizes, this agriculture-focused product combines the benefits of soil calcification with an optimal supply of magnesium, essential for carbohydrate transport within the plant. It neutralises acidity, improves soil structure, enhances productivity, and reduces the need for chemical fertilizers.

Dolomitic Quicklime

With high MgO content and exceptional purity, Fassa’s Dolomitic Lime is the ideal solution for both the iron & steel industry, where it extends refractory brick life and reduces costs, and for the most demanding chemical sectors.

Oximud F and G

The Oximud line, composed of finely ground dolomitic lime, is specifically developed for sludge treatment. Its special grain size distribution ensures optimal dispersion in the treated material, while the high magnesium oxide content provides long-lasting reactivity.

Latest updates from the Lime System – Fassa Bortolo

16Oct2025
Fassa Bortolo Lime System and Politecnico di Milano: where research meets industry.
Reducing CO₂ emissions starts with a better understanding of materials. At the 7th European Steel Technology and Application Days (ESTAD 2025), Politecnico di Milano presented a study promoted by Fassa Bortolo on the natural CO₂ capture potential of EAF and LF steel slags.
14Sep2025
Geosciences and the challenges of the 21th century
From September 16 to 18, 2025, in Padua, Fassa Bortolo will take part in the conference “Geosciences and the Challenges of the 21st Century” to share its contribution on research and practical applications in the field of secondary raw materials and the circular economy.
15Mar2025
Fassaroad – An Innovative Solution for Road Infrastructure
STOP dust on road construction sites. FASSAROAD is a lime milk-based suspension that eliminates dust clouds, preventing bitumen from being removed by construction vehicles.
25Sep2024
Best Supplier for Sustainability
We are proud to announce that during the “Supplier Event” held in Toledo (Ohio, USA) on September 25, Fassa Bortolo was recognized by Owens Corning as the Best Supplier 2024 for Sustainability.

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    Fassa S.r.l.
    via Lazzaris, 3 – 31027 Spresiano TV
    C.F./P.IVA 02015890268
    Cap. Soc. € 50.000.000,00
    Reg. Impr. TV 02015890268

    T +39.0422.7222
    F +39.0422.887509

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