Therban® 4309 (55,Bale)
Supplier Partner
Arlanxeo
Arlanxeo
Product Type
Polymer
Polymer
Product Subtype
HNBR
HNBR
Key Chemical % Range
37-49% Acrylonitrile
37-49% Acrylonitrile
Viscosity
81-115 [UML (1+4) @ 100°C]
81-115 [UML (1+4) @ 100°C]
% Acrylonitrile
43
43
Mooney Viscosity UML (1+4) 100 deg. C
100
100
Nominal Residual Bonds
0.9
0.9
A 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, Therban 4309-based 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. High molecular weight provides for capacity of high plasticizer and filler loads.