FAQs

MRP

Will using Lehigh’s MRP help reduce production costs?
Utilizing MRP in your formulation will provide cost savings if it replaces other oil- and rubber-based feedstocks, whose prices are tied to volatile commodity markets. However, depending on your formulation, MRP also offers property enhancements that boost product performance. We work with our customers to determine the optimal choice of product and formulation guidance to help you benefit by using MRP—contact us to start a conversation.
How do I formulate with MRPs?
We work with you to integrate MRPs into your product formulation and manufacturing process. Scientists in our Application and Development Center (ADC) work with your technical team to identify the best incorporation and formulation techniques for our MRPs.
How much MRP can I put in my formulation?
It depends on the application. Some applications use as little 5 percent in their formulations; others can use 40 percent or more. Led by a team of experienced industry professionals and scientists, our ADC team can help you determine the optimal loading percentage for your formulation
What types of rubber material is MRP compatible with?
Currently, we work with whole-tire rubber, tire tread buffings, natural rubber, EPDM, nitrile and butyl rubbers. We are continually testing new rubber materials and are open to looking at your specific needs.
Is MRP available to customers outside of the United States?
Yes, in addition those in the United States, we ship to customers in Asia, South America and Europe. 

Feedstocks and Output

Where do you get your tires?
End-of-life tires are collected and shredded by multiple tire recyclers in the US. We work with them to deliver a consistent raw material to Lehigh’s plant in Georgia..
What types of tires do you use?
Our core product line is derived from post-consumer, end-of-life truck tires. Using this type of tire as feedstock offers us the ability to maintain consistency in the composition of our MRPs. We also use post-industrial rubber feedstocks, such as pin vents and other tire/retread materials
What is the content of your product? Do you add anything to your MRP?
We add a very small amount of an environmentally friendly and safe processing aid. Our product is cryo-mechanically processed, meaning no other major chemicals are added. Our customers receive a high quality, consistent, clean, metal- and fiber-free MRP derived from the rubber material of their specification.
How is your product similar/different to reclaim?
The core difference between Lehigh’s MRP and reclaim is the treatment during the manufacturing process. Generally, reclaim rubber is chemically and heat treated, causing the properties of the base compound to degrade. Lehigh's rubber is cryo-mechanically treated, preserving the properties of the base compound. This enables MRP to provide performance benefits in many applications.

Safety and the Environment

Is your product safe?
Ground tire rubber has gone through extensive testing in the U.S. and Europe by independent laboratories and government agencies for health and safety. Ground tire rubber has been found to be safe in these specific application tests. A list of these tests and conclusions, including Lehigh Technologies’ third-party REACH/SVHC report, can be obtained by contacting us here.
How does using Lehigh’s MRP help protect the environment?
By incorporating MRPs into products, users:
  • Prevent end-of-life tires and post-industrial rubber from entering landfills
  • Preserve resources like oil and rubber by not buying oil-derived, virgin-materials to reduce energy consumption tied to manufacturing new products
  • Lower greenhouse gas emissions derived from production of virgin raw materials
Is your product REACH compliant?
Yes. Our PolyDyne™ and MicroDyne™ products from whole tire rubber and buffing/peelings have been tested by two third party testing laboratories, TÜV SÜD and Akron Rubber Development Laboratory (ARDL), and are REACH compliant.