Product description

Function: Curing agent for all natural and synthetic rubbers.


80% Sulphur acc. to specification

20% Elastomer binder and dispersing agents

Appearance: Yellow granules

Density, 20 ºC: Approx. 1.6±1.0 g/cm3

Ash content: <5.0%

Specification of sulphur

Sulphur content: Min. 99.5 %

Particle size: 99 % < 230 Mesh ASTM = 63 μm

Physiological properties: Please contact us for Safety Data Sheet


Mode of action: Isogran® S-80 is a curing agent for all natural and synthetic rubbers, which require a quick incorporation in the mix and an excellent dispersion of the sulphur. Due to the homogeneous dispersion in the rubber the occurrence of localized over-cured zones is avoided, which ensures an improved resistance against ageing and dynamic fatigue. The good dispersion of sulphur is of particular advantage in soft compounds, in which a problem-free distribution of the sulphur is often very hard to achieve.

Processing: The thermoplastic, fully compatible polymer binder which is combined with special dispersing agents allows quick absorption and excellent dispersion in the polymer. In this way, optimal activity of the effective substance assured.

Dosage: The dosage is the same as with non-elastomer-bound sulphur. A higher dosage according to the sulphur content is, due to the better dispersion, usually not necessary.

Application: Soft compounds: light-colored compounds, which must be free of sulphur stains, rubber articles which have to withstand dynamic stress.

Packing: 25 kg cartons with PE inner bag

Storage stability: In original closed containers under cool and dry conditions max. 2 years.

Handling: Consult Material Safety Data Sheet (MSDS) for additional handling information on Isogran® S-80.

Our technical advice – whether verbal, in writing or by way of trials – is given in good faith but without warranty, and this also applies where proprietary rights of third parties are involved. It does not release you from the obligation to test the products supplied by us as to their suitability for the intended processes and uses. The application, use and processing of the products are beyond our control and, therefore, entirely your own responsibility. Should, in spite of this, liability be established for any damage, it will be limited to the value of the goods delivered by us and used by you. We will, of course, provide products of consistent quality within the scope of our General Conditions of Sale and Delivery.


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