Limestone, dolomite and clay serve as filler in many polymers, such as plastic, rubber, paint, adhesives and carpet backing. A large number of applications require strictly-controlled chemistry and particle size. All of our products we supply to this market meet the required high standards. We also offer customized solutions in terms of the range of particle size distribution or/and limitation of the top cut.

Polymers are a large group of natural and synthetic materials. Limestone products act as a filler to enhance their innate properties and offer additional advantages.

Desiccants for extrusion processes

In the high-temperature extruder process, small amounts of special quicklime serve as an extremely efficient moisture catcher for humidity in plastic granulates. 


Limestone is added as a filler and pigment extender in emulsion paint formulations. Strict control of particle size is critical.

Adhesives, caulks and sealants

A wide variety of products, including latex-based (butyl rubber and butadiene) adhesives and sealing compounds, construction adhesives and wood putties rely on limestone as a filler. Consistent high-calcium chemistry is important to reduce the viscosity effects of magnesium and the wear and bonding strength deficiencies of silica.