Carpet backing and Rubber

Our expertise in the production of limestone fillers enables us to cater to the requirements of manufacturers of composite materials incorporating limestone additives.

Carbocia : supplying top-quality limestone fillers

The transition between the production site and the distribution operation is as smooth as possible in order to deliver a seamless supply chain.

Our limestone fillers, which are especially high in calcite, consistently demonstrate a content of more than 96 % CaCO3. They are an essential mineral ingredient used to improve the viscosity of rubber blends for the production of carpet backing, compounds and plastic composites.

Carbocia micronized limestone is a natural material that’s 100% French-made which is used to create composite materials for use in the plastics processes field.



Product properties :

  • Consistency
  • Range of particle sizes
  • Whiteness



Carbocia, the specialists in limestone fillers

In terms of particle size, uniformity and consistency, colour, flowability and chemical composition our micronized limestone fillers (ranging in size from a few microns to 4 mm) are perfectly suited to agricultural and industrial uses, meeting the specific standards and requirements of these sectors. We are able to operate on a continuous production basis and boast an integrated logistics infrastructure.

Contact us


We sell top-quality limestone fillers extracted from the Carrières de la Vallée Heureuse quarry in France’s Pas-de-Calais area. The intrinsic physical and chemical propertiesof our limestone and our micronization techniques are of major benefit to many industries. We shift our focus and adapt our products to keep pace with ongoing technological progress thanks to our partner CVH’s laboratory.

Our products

Our limestone has a content of over 96% CaCO3. This extremely high level allows us to meet the specifications of the industrial and agricultural sectors. The particle size of our fillers meets all relevant product requirements and complies with all standards and regulations currently in force. 

Animal Feed Find out more
Grouts & plasters Find out more
Fertilizers & agriculture Find out more
Carpet backing & rubber Find out more
Precast concrete/concrete Find out more
Asphalt Find out more
Sealants/roofing Find out more

Carbocia in pictures