Therban® AT 3904

A low viscosity, fully hydrogenated butadiene acrylonitrile copolymer (less than 1% residual doublebonds), which provides vulcanizates with superior resistance to heat, ozone and excellent resistance to non - polar hydrocarbon fluids including those containing aggressive additives. With this level of unsaturation, compounds can only be vulcanized with peroxides or high-energy radiation. The incorporation of a crosslinking co-agent is recommended for optimized physical properties of both unaged and aged vulcanizates. Low viscosity AT - technology provides a broad processing window, low mould fouling and the potential for higher filler loads compared to standard viscosity HNBR types.
Mooney Viscosity 39 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Acrylonitrile Content 39,0 wt % ISO 24698-1
Residual Double Bonds 0,9 % IR Spectroscopy
Density 0,96 g/cm³ Internal Method


Arlanxeo HNBR Therban Brochures Download
Therban® AT 3904 Product Data Sheet Product Data Sheet Download
Therban® AT 3904 Safety Data Sheet Safety Data Sheet Download

Additional Information

Supply Form Bales
Shelf Life 36 months from date of production at temperatures not exceeding 35°C in dry conditions; exposure to light has to be avoided
Safety Relevant safety data and references as well as the possibly necessary warning labels are to be found in the safety data sheet.

Industries and Applications

Therban® AT 3904 is used for

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