
Engineered for endurance
RE ZRO®, the British materials brand specialising in next-generation impact protection, introduces Impact-Modified Polyamide 66 (PA66), a rigid-grade engineering polymer developed for high-load, high-risk environments where performance cannot degrade over time. Designed for hard-shell protection components, the material delivers exceptional impact strength, abrasion resistance, and dimensional stability across extreme temperature ranges.
Developed for applications including helmet shells, shin guards, buckles, and structural inserts, Impact-Modified PA66 provides consistent stiffness and long-term durability in demanding conditions. Available in bio-based and post-consumer recycled variants sourced from reclaimed ocean plastics, the material brings technical resilience together with a reduced environmental footprint.
High-impact nylon built for protection and performance
Traditional PA66 is valued for its mechanical strength but carries high environmental cost and limited circularity. RE ZRO® Impact-Modified PA66 retains the proven toughness and low-temperature performance of virgin nylon while introducing sustainable feedstock options that reduce reliance on newly produced polymers.
The material delivers high tensile strength, controlled flexibility under impact, and excellent abrasion resistance, making it suitable for both protective shells and load-bearing structural components. Performance remains consistent from sub-zero conditions through to high-heat environments, ensuring reliability wherever protection is required.

Advanced strength, lower footprint
Impact-Modified PA66 has been engineered to support manufacturers seeking measurable reductions in environmental impact without compromising on precision or performance. Bio-based and ocean-plastic PCR options offer a practical route to lower embodied carbon while maintaining the mechanical integrity demanded by safety and performance products.
For OEMs and component manufacturers, the material integrates seamlessly into standard injection-moulding systems, with stable shrinkage and dimensional control supporting repeatable, high-precision production. Each formulation can be tuned for specific use cases, including reinforcement, rigidity, or weight optimisation, providing a flexible and scalable alternative to conventional engineering plastics.
Engineered to protect, perform, and return to ZRO
Developed in collaboration with TOTO-TOA®, RE ZRO® Impact-Modified PA66 incorporates proprietary chemistry that enhances processing flow and supports controlled biodegradation in anaerobic landfill environments. Verified through the TOTO-TOA® programme, this approach delivers credible end-of-life responsibility alongside industrial-grade performance.
With Impact-Modified PA66, RE ZRO® continues to expand its materials portfolio, offering manufacturers advanced strength with a lower footprint, engineered for endurance in the real world. RE ZRO® Impact-Modified PA66 is already applied in the ION ARCON HD Pro MTB chest protector, which features RE ZRO®-enhanced CE Level 2 protection components developed for impact performance and comfort.
With Impact-Modified PA66, RE ZRO® continues to expand its materials toolbox, offering brands and manufacturers a high-performance, recyclable solution for serious protective applications.
Get in touch to discover our full range of sustainable materials and how they can be integrated into your next product development cycle.
ABOUT RE ZRO®
RE ZRO® is an industry leader in advanced impact protection technology, dedicated to providing sustainable and innovative solutions. Known for their cutting-edge materials and commitment to reducing environmental impact, RE ZRO® strives to create products that deliver maximum protection without compromising the planet.
Please contact info@re-zro.com if further information is needed.
*Biodegradability as determined by the standard test method ASTM D5511-18 & ISO 15985:2014