Study Finds Austin Black 325 Can Improve Air Retention by 21.6% in Tire Inner Liner Applications

Purpose of Testing

ACE Laboratories evaluated the performance of Austin Black 325 in a butyl inner liner application. For this study, 40 phr Austin Black 325 (AB325) was substituted for 20 PHR of N660 Carbon Black in a standard tire inner liner formulation to determine the value of AB325.


Of the various ASTM tests performed, the compound containing Austin Black 325 provided a 21.6% improvement in air retention, as well as similar physical properties and MDR Rheology to the compound only containing N660.


Formulations



Mix Procedure

Compounds Mixed - 1.57 Liter BR Banbury at 65 RPM’s



ASTM Tests

Various ATSM Tests Performed on Each Batch



MDR Rheology




Mooney Viscosity




Physical Properties


Air Permeability Findings


Conclusion

Austin Black 325 is shown to improve air retention by 21.6% when used in these tire inner liner applications. Additionally, the compound containing Austin Black 325 had similar physical properties and MDR Rheology to the compound only containing N660. If you would like to test the value of Austin Black 325 in your products, request a sample.