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Deolink TESPT

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Deolink TESPT is an activator for fillers and is based on sulfur-silane chemistry. It links to the rubber through the tetrasulfane group and to silica and other active white fillers through the ethoxy group leading to an improvement of the physical properties of the sulfur cured vulcanizate.

Deolink TESPT improves the tensile strength, modulus, compression set, and abrasion resistance for all commonly used elastomers. Best results are obtained at elevated mixing temperatures at about 120 – 140°C. Typical dosage is 10% of the silica-filler load. It is mainly recommended for sulfur crosslinked compounds. The EVA wax carrier protects the silane from hydrolysis.

Appearance                                                              Yellow pellets
Chemical Composition                                              Bis(3-triethoxysilylpropyl) tetrasulfane, 50% active on an EVA wax polymer carrier
Active (%)                                                                 50
Total Sulfur (%), ASTM D 1552                                10 - 13
Dropping point (°C)                                                   72 ± 5
Density @20°C (DIN ISO 787 part 10A)                  1.0 g/cm3

Note: The above analytical data are not specifications.

Wide range of elastomers and applications such as cables, roller coverings, seals, conveyer/V-belts, shoe soles, hoses and tubes, molded articles.

 Store in originally sealed packaging in cool, dry places. Maximum recommended storage temperature: 25°C
Shelf Life is min. one year under the recommended storage conditions.
Avoid all personal contact. Observe good personal hygiene. For additional information, it is advised to consult the Material Safety Data Sheet (MSDS) for Deolink TESPT.


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