Evaluating alternatives to DPG in rubber

Evaluating alternatives to DPG in rubber


N,N'-Diphenylguanidine (DPG) is a widely used secondary vulcanization accelerator for both natural and synthetic rubbers. Typically used alongside primary accelerators, it plays a key role in passenger tire tread formulations - usually at concentrations between 0.1% and 0.2% - as well as in the production of general and technical rubber goods.

While DPG and its reaction by-products, such as aniline, are not currently subject to the same level of public or regulatory scrutiny as substances such as PFAS or 6PPD, this may not remain the case. The regulatory landscape is evolving, and growing scientific attention could lead to increased evaluation or restrictions in the future.

In this article we explore the future of DPG in rubber, its regulatory landscape, and how Smithers can assist in evaluating alternatives. Download the article now. 

How we can help

Smithers supports rubber compounders, manufacturers, and suppliers by:
  • Evaluating performance trade-offs for DPG alternatives
  • Testing and validating substitute accelerators in specific formulations
  • Offering expert guidance on material selection, compliance, and lifecycle considerations
Talk to our experts about how to future-proof your compounds while maintaining performance.

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