Baryte

Sibelco PORTARYTE® natural baryte delivers a range of benefits, from improving UV and chemical resistance in coatings, to increased soundproofing in plastics and enhanced friction in brake linings.

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about

Baryte

Baryte (also referred to as barite or barytes) is the naturally-occurring form of barium sulphate (BaS0₄). It has a high specific gravity (4.5) and very low solubility.

Sibelco’s natural baryte (known as PORTARYTE®) is used mainly in the following applications:

Coatings: to improve UV resistance, sandability, chemical resistance and gloss control, to increase density, and as a cost-effective replacement for precipitated baryte.

Polymers: to improve sound proofing in plastics and opacity in resin systems, to increase weight, and as a cost-effective replacement for precipitated baryte.

Automotive: to improve friction in brake linings.

Key characteristics of natural baryte include:

high inertness

high density, resulting in low oil absorption

medium Mohs hardness of 3

high refractive index of 1.64

easy wetting

easy dispersion 