Functional Fillers & Reinforcements

Mineral Fillers & Reinforcements for Compounding

Mineral fillers include a vast and diverse collection of both naturally occurring and man-made materials. The majority of mineral fillers are naturally occurring. Product selection depends on characteristics such as particle size, color, chemical resistance and shape.

Precipitated calcium carbonate, fumed silica, talc and carbon black are just a few of the fillers and reinforcements used in compounding. These functional fillers and reinforcements are applied to polymer, rubber, adhesive or epoxy compounds. Their distinctive properties allow for excellent extrusion and chemical resistance.

Experienced and Reliable Mineral Suppliers

Each functional filler and reinforcement plays a unique role depending on the compound or product properties required. There are a wide array of fillers and additives available both locally and globally.

Without the proper resources, finding a particular grade of calcium sulfate, fumed silica, kaolin clay or any functional additive can be difficult and time-consuming. That’s why the raw materials experts at H.M. Royal have forged global, long-lasting relationships with suppliers from around the world. We bring you the mineral fillers you need when you need them.

As a leading raw materials supplier, we have the experience, global network and reliability to meet any compounding need. Contact us today for product information or to speak to an expert.

H.M. Royal Mineral Fillers & Reinforcements

A sampling of our mineral fillers and reinforcements includes:

Types of Functional Fillers & Reinforcements

H.M. Royal Suppliers  & Product Lines

Common Applications

Precipitated Calcium Carbonate

Shiraishi Kogyo Kaisha, Ltd.: Shiraishi Calcium, Hakuenka, Viscolite & Viscoexcel

Precipitated calcium carbonate is used as a reinforcing filler in rubber and PVC. It’s also used as a thixotrope in adhesives and sealants.

Water Washed, Calcined & Treated Clay

BASF: ASP, Buca, Catalpo, Satintone, Translink & Ultrex

Selected for their reinforcement, good electrical properties in rubber, plastics and wire and cable compounds.

Carbon Black

Aditya Birla Carbon: Ultra
Nouryon: Ketjen Black

Carbon black is the most widely used reinforcing filler in tires and mechanical rubber goods.

Dry, Wet, Ground & Treated Calcium Carbonates

Imerys: Camel-Wite, Atomite & Camel-Cal
Specialty Minerals: Hi-Pflex, Marblewhite & Vicron

These calcium carbonates are used for color, impact strength and electrical properties in vinyl, rubber and adhesive compounds.

Fumed Silica

Tokuyama: Reolosil

Fumed silica reinforces silicone rubber and viscosity modification in liquid polymer systems.

Oyster Shell

Royal Brand: Roy Cal H

When applied, oyster shell results in faster extrusion rates and smoother surfaces in polymers.

Kaolin Clay

Royal Brand: King V Clay, Queen Clay

Kaolin clay allows for smoother surfaces. Its fine particles create a reinforcing effect in most polymers. Larger particle kaolin is used for maximum loading.

Naturally Occurring Talc

Imerys Talc: Mistron

Talc is an excellent reinforcing filler due to its platiness and good extrusion properties.

Calcium Sulfate

U.S. Gypsum: Snow White

Calcium sulfate provides chemical resistance in white formulations.

Ground Coal

Keystone Fillers: 325BA Mineral Black

Coal is a lightweight reinforcing agent used in many rubber compounds. It offers lower pound volume costs than carbon blacks.

Precipitated Silica & Sodium Aluminosilicate

Glassven: Rubbersil

Precipitated silica is used as the primary reinforcement filler in white rubber compounds.

To request technical data sheets or more information for any of our products, contact us today!

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