We have a strong and well developed manufacturing unit that helps us to manufacture and supply Tetrasulfide Silane. These are used as a coupling agent for silica filled organic rubber. We formulate these chemicals under the strict guidance of our experienced professionals using the finest grade compounds. The compounds are sourced from the authentic vendors of the market. Precisely checked on certain quality parameters, our Tetrasulfide Silane is offered to the clients at the market leading price.
Anti foaming agent
Item Code: Dow-Corning-Z-6940-Silane
Tetrasulfidosilane coupling agent for silica filled rubber.
Provides compatibility and coupling between inorganic fillers and organic rubber (e.g. silica and SBR)
Specification Writers: These values are not intended for use in preparing specifications. Please contact your local Dow Corning sales office or your Global Dow Corning Connection before writing specifications on this product
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clear, amber liquid
Average Sulfur Chain Length
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Dow Corning Z-6940 Silane is a mixture of polysulfidosilane species with an average sulfur chain length of 3.75. It is a 100% actives product in a liquid form.
How to Use
As with any organofunctional alkoxysilane coupling agent, Dow Canting Z-6940 Silane can be applied as a primer or incorporated in-situ in a compound formulation.
As a primer of a surface, the silane can be dispersed in ethanol at about 1% and wiped onto a substrate.
As an in-situ treatment, the silane is typically added with the organic matrix and inorganic filler/reinforcement. In the case of black rubber, oil silane is added with the rubber, oil and silica in the first mix. The ethoxysilyl groups then react to the surface of the inorganic material during this mix. It is typical to drive the temperature of the mixture to over 150°C to get adequate reaction of the silane to the