EggCore

EggCore

EggCore (ESF) products are high-purity inorganic biofillers produced by micronizing eggshells sourced from the food industry. Composed primarily of biogenic CaCO₃ (calcite), they feature a white/cream color, extremely low moisture content (<1%), and exceptional thermal stability (exceeding 350^∘ “C” ). The Advanced series provides unique treatments such as anti-odor properties and surface hydrophobicity, making it the most versatile range in the ESF product family.

Raw Material | Food industry waste – eggshells
Composition | Biogenic CaCO₃ – predominantly calcite

Available Grades

EggCore ESF, biofiller micronizzato da gusci d’uovo

Wide range of particle sizes featuring quasi-spherical particles. Ultra-low moisture content (<1%). White color makes it ideal even for color-sensitive applications.

Grade Umidity (% p.p.) d₁₀ [µm] d₅₀ [µm] d₉₀ [µm] Morphology Color
ESF B1 < 1% 3 ± 1 14 ± 2 29 ± 2 Near-spherical particles White
ESF B3 < 1% 2 ± 1 5 ± 2 12 ± 2 Near-spherical particles White
ESF B4 < 1% 6 ± 1 26 ± 2 62 ± 2 Near-spherical particles White
ESF B5 < 1% 8 ± 2 38 ± 2 130 ± 15 Near-spherical particles White
Note: Numerous other grades are available in our catalog, and custom grades can be produced upon request.

EggCore ESF, biofiller micronizzato da gusci d’uovo

Grade Size Range Morphology Umidity
ESF GS25-15 1,5 – 2,5 mm Coarse sand < 2%
ESF GS10-5 0,5 – 1,0 mm Medium sand < 2%
Note: Additional grades are available in our catalog. Upon request, we can also develop custom grades with tailored particle size distributions to meet specific application requirements.

EggCore ESF Advanced, biofiller da gusci d’uovo trattato

The Advanced ESF range is the most comprehensive in the entire AgroMateriae line, featuring exclusive treatments including odor control.

Grade Treatment / Improved Properties
ESF A101 Superior adhesion and enhanced dispersibility
ESF A201 Superior flowability and enhanced hydrophobicity
ESF A301 Superior flowability and enhanced dispersibility
ESF A401 Odor-control treatment
Note: Additional grades are available in our catalog. Upon request, we can also develop custom grades with tailored chemical properties based on specific needs.

typical properties
Nature / Composition
CaCO₃, predominantly calcite
Color White / Cream
Density (ρ)
2,40 – 2,60 g/cm³
pH
7,5 – 8,5 (Neutral / Slightly basic)
Thermal Stability
> 350 °C (Exceptionally high)
bio-based content & origin
Origin Tot. Bio-based [%] C [%] C¹⁴ Bio-based [%] CHNO [%] CHNO Bio-based [%]
Food Industry Waste – Eggshells 96 – 100% 12 – 15% 98 – 100% 61 – 66% 97 – 100%

Typical applications

  • Plastics & Polymers

  • Rubber & Elastomers

  • Paints & Inks

  • Cements & Mortars

  • Textiles & Leather

  • Automotive

  • Adesivi & Coating

  • Pet Care

  • Paper & Cardboard

Sustainability & Compliance

High Bio-Based Content
Derived from renewable biomass. Total renewable content: 96–100% (EN 16848).

Carbon Footprint
The carbon footprint of select EggCore grades has been evaluated via a Life Cycle Assessment (LCA) according to ISO 14067. Contact us for detailed technical reports.

REMADE in Italy Certification
Select EggCore biofillers are available with REMADE in Italy® certification.

Compostability & Biodegradability
Our biofillers meet the heavy metal limits and compositional requirements of EN 13432 (Industrial Composting) and EN 17033 (Soil Biodegradability).

Food Contact Compliance
Specific EggCore grades are approved for food-contact applications in compliance with Regulation (EC) No 1935/2004, EU Regulation No 10/2011, and Italian DPR 777/82. (Note: Corrected product reference from SunCore to EggCore in the translation).

Non-Food Competing
Second-generation feedstock sourced strictly outside the human food supply chain.

CUSTOM-MADE FILLER

We start from your product or your waste.

Our R&D team transforms your by-products into specialty fillers that become a signature mark of your production—preserving your design while lowering your carbon footprint.

Talk to our team
Campioni di materiali con biofiller personalizzati da scarti agroindustriali