Irganox® EL 1291

Irganox® EL 1291 by BASF is a low viscosity synergistic blend of liquid antioxidants for processing and long-term thermal stabilization of organic substrates such as raw elastomers, vulcanizates and plastics. It is a non-staining, non-discoloring, heat stable, low volatile and resistant to extraction. It protects the substrates against thermo-oxidative degradation during processing and long-term heat aging. Irganox® EL 1291 is suitable for thermoplastic elastomers including BR, SBR (including carbon black masterbatches), NBR, CR, IR, SBS, SIS and natural rubber. It is used as an effective antioxidant and antifatigue agent for rubber vulcanizates based on diene rubbers, especially CR. It can be used with other additives such as primary and secondary antioxidants, benzofuranones, light stabilizers and other functional stabilizers. Recommended usage level in raw elastomers ranges between 0.05-1.0%. In rubber vulcanizates, it is used typically at 1-3 phr level.