Physical properties
Talc is an hydrated magnesium silicate, belonging to the subclass of phyllosilicates. Its crystals are thin and lamellar forming, when massive, wide range of colours (i.e.: white, pink, green, grey or black). Talc can be found in various grades, different by purity, colour and lamellarity. Its main characteristics are: it’s naturally hydrophobic and lipophilic, it’s chemically inert, resisting very well to acids and bases; it’s the softest mineral; it’s a good electric and thermal insulator and it’s neither flammable nor explosive. Thanks to these characteristics, talc is a mineral of choice in many industrial uses.
The five main properties of talc that make it a unique substance for industrial and domestic applications are:
- Lamellarity (composed of platelets that slide off each other)
- Softness (unctuous and non abrasive)
- Chemical inertness
- Affinity for organic chemicals
- Whiteness
Talc is used as an anti-sticking agent, an anti-caking agent, a lubricant, a carrier, a thickener, a strengthening filler, a smooth filler, and an adsorbent.
Sustainable, Value-Added Talc Solutions
We are committed to providing the industry with sustainable, value-added talc-based solutions that help preserve the environment and reduce our customers’ carbon footprint.
In automotive plastics, high-aspect-ratio (HAR®) talcs offer the ideal balance of rigidity and impact strength, enabling manufacturers to produce thinner, lighter components—helping to reduce overall vehicle weight. Similarly, our micro-lamellar talcs enhance permeability in rubber, improving tire rolling resistance and boosting fuel efficiency.
In paints and coatings, talc serves as a natural, eco-friendly alternative to TiO₂ while enhancing mechanical and optical properties.
In the pulp and paper industry, talcs prevent deposits, enabling mills to operate in closed water circuits and optimize resource efficiency.
For ceramic tiles and sanitaryware, talc improves the vitrification process, reducing firing temperatures and shortening cycles.
In agriculture, talc-based solutions offer natural alternatives to chemical treatments, protecting fruit from sun damage and disease—ideal for organic farming. Talcs also function as effective flow enhancers and anti-caking agents for fertilizers.