Wool composite technology and performance
You can bring strong wool - often left unused - into your next product design. Instead of going to waste, this robust wool gets blended into a composite that gives your products more stiffness, strength and impact resistance.
You also get natural fire resistance and better insulation, benefits that standard plastics do not offer. That is practical value for your line.
Using Shear Edge composites, you can improve the performance of your manufactured products by increasing rigidity and tensile strength. Natural wool fibre composites are stiffer and naturally more lightweight.
Sheep farming is critical for land regeneration. It is now more expensive to shear a sheep than the actual wool itself. Shear Edge composites can be compounded with a wool ratio of up to 30%, depending on the polymer used. Higher than other bioplastic compound materials on the market. By compounding strong wool with plastic, we are able to support our sheep farmers globally.
You can cut fossil-based plastic use by using a fibre that grows back every year, without losing the processing behaviour or performance you rely on. Mechanical properties are measured for your needs, so you see real data before making any switch.
This lets you reduce your product’s carbon footprint with confidence and clarity.
Outdoor gear, kayaks and equipment face harsh conditions. Your composite is set up with the right fibre content and polymer to handle impact, weather and sun, all while staying lighter and stiffer than many alternatives. You get the durability and practicality you need.
Environmental impact and sustainability in materials
Keravos Technology reduces the carbon impact by replacing a portion of fossil-fuel-derived plastic in consumer products with renewable strong wool fibres, directly lowering the embodied carbon footprint of each product manufactured. Shear Edge is differentiated from others in the industry because we have not simply developed another bio-based plastic. Shear Edge composite can seamlessly integrate into any moulding infrastructure, without adding an extra cost to any manufacturing process. We are also able to compound to a higher ratio than our competitors.
Your products can be recycled with similar materials, so you can hit your own sustainability targets without extra steps. This makes meeting circularity goals much more straightforward.
By swapping virgin plastic for wool, your products use a renewable input - sheep are shorn annually for their health. Each application gets the right fibre content, so your carbon savings are based on facts, not empty claims.
You receive clear records on percentage used and performance data. This supports your ESG and compliance reporting, giving you solid evidence for your sustainability claims. No uncertainty or guesswork.
Manufacturing integration and technical support
Yes — our wool-fibre composite materials are designed to integrate with standard plastic manufacturing processes so you don’t need new machinery to adopt them.
You can expect your process to continue much as it always has. If minor changes to temperature or cycle time are needed, you get direct recommendations for your line. This keeps your transition to biocomposites simple and low-stress.
You get mechanical data - including tensile, stiffness and impact - measured to recognised standards. If you need third-party testing, that can be arranged so your technical team gets all the information needed for approval. Your data is always on hand.
Your product gets a formulation designed for its end use - fibre percentage, polymer type and any required additives are set to match your needs. You get a fit-for-purpose material, not a generic blend.
We will work with your company to discuss any required needs. Please contact us to discuss further.
Industries, applications and real-world use
Shear Edge materials are best used for long-life plastics. Our materials have improved properties that increase product performance. Our sustainability process is one your customers can trust.
Your prototypes or finished goods can be based on proven examples - such as kayaks, fencing parts or knife handles to name a few - so you can see real outcomes before you commit.
Your construction project that needs rigid or insulated components can use these composites to reduce plastic content. Each project gets checked for technical fit, so your compliance and performance needs are covered.
Your use of strong wool supports sheep farmers globally by creating a new market for wool that would otherwise go unused. This choice helps keep farming viable while pushing material innovation forward.
Your move to renewable fibre gives you a transparent, traceable sourcing story - plastic is cut, waste wool is put to use and your supply chain is clear. This is a real way to show your commitment to sustainable materials manufacturing.
Sourcing, supply and getting started
Your fibre is sourced from accredited New Zealand farms and selected international partners. Every lot is traceable and wool regrows each year. That is a story you can stand behind.
Your manufacturing location is not a barrier - Shear Edge supplies producers and compounders globally. Wherever you are, materials can be delivered.
To talk through your project or request materials, visit the Contact page or email info@shear-edge.co.nz. You will get a reply directly.
Your supply comes from long-standing farming networks and trusted partners, giving you consistent access to strong wool batch after batch. You can plan with confidence.
Your best start is to share product type, expected volumes, your current material and what you want to achieve in performance or sustainability. Processing details and compliance targets help you get answers and recommendations that fit your operation.
The more you provide, the faster you get the information you need.
Shear Edge is a materials technology and polymer compounding business based in Auckland, New Zealand, developing and producing wool fibre reinforced plastic composites for manufacturers in New Zealand and worldwide.
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Page: How wool can replace plastic in manufacturing NZ | NZ wool composites - Last updated: 26th June, 2026
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