Category overview

Biofillers

Based on 22 products - Last update on the Jun 26, 2025

Biofillers are natural additives used in plastics to improve their mechanical and thermal properties, making them more durable and heat-resistant. These additives typically appear as fine powders or granules derived from agricultural or industrial by-products like rice hulls, coffee chaff, or wood fibers. Key features include their ability to reduce the carbon footprint of plastic products, enhance biodegradability, and provide cost-effective alternatives to traditional fillers. Used in packaging, automotive parts, consumer goods, and construction materials. 

Alternatives include traditional mineral fillers like calcium carbonate and talc. Sub-types include cellulose-based and starch-based fillers.

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UPM Circular Renewable Black™

by UPM

UPM Circular Renewable Black™ by UPM is a renewable, detectable, bio-based functional filler in rubber and thermoplastic compounds. It offers excellent thermal stability during recycling confirmed by melt flow index (MFI) and oxidation induction time (OIT). It provides significantly improved carbon footprint of masterbatch compared to masterbatches using fossil additives and pigments. <br> <ul style="padding-left: 40px;"><li>It allows for NIR detectability of the base polymer, thus enabling sorting and recycling of black-colored plastic products.</li><li>It is made from certified feedstock from sustainably managed forests under FSC™ and PEFC, reducing dependence on fossil resources. </li> <li>It provides premium asthetics, transparency ensured through ISCC+ certification and an independent life cycle assessment conducted according to ISO 14040/44 standards. </li> <li>UPM Circular Renewable Black™ has an outstanding climate performance with a negative carbon footprint from cradle-to-gate considering biogenic carbon. </li> <li>It provides deep, rich black coloration that meets the highest standards for luxury packaging and premium products. </li></ul>
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UPM Circular Renewable Black™

by UPM

UPM Circular Renewable Black™ by UPM is a renewable, detectable, bio-based functional filler in rubber and thermoplastic compounds. It offers excellent thermal stability during recycling confirmed by melt flow index (MFI) and oxidation induction time (OIT). It provides significantly improved carbon footprint of masterbatch compared to masterbatches using fossil additives and pigments. <br> <ul style="padding-left: 40px;"><li>It allows for NIR detectability of the base polymer, thus enabling sorting and recycling of black-colored plastic products.</li><li>It is made from certified feedstock from sustainably managed forests under FSC™ and PEFC, reducing dependence on fossil resources. </li> <li>It provides premium asthetics, transparency ensured through ISCC+ certification and an independent life cycle assessment conducted according to ISO 14040/44 standards. </li> <li>UPM Circular Renewable Black™ has an outstanding climate performance with a negative carbon footprint from cradle-to-gate considering biogenic carbon. </li> <li>It provides deep, rich black coloration that meets the highest standards for luxury packaging and premium products. </li></ul>
  • Recently launched
  • Sustainable option
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NaturFil™ Pine Wood Flour Concentrate

by Lignetics

NaturFil™ Pine Wood Flour Concentrate by Lignetics is a sustainable and biodegradable filler designed for use in rigid and semi-rigid polymer composites. It is derived from finely ground natural wood fibers and provides an eco-friendly alternative to traditional mineral fillers. It is suitable for wide range of thermoplastics, including polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), and acrylonitrile butadiene styrene (ABS).<br><ul style="padding-left: 40px;"><li> Produced with patent-pending technology, it is densified to improve feedability and handling compared to traditional wood flour.</li><li> It enhances stiffness and dimensional stability of polymer composites.</li><li>It reduces overall material cost and adds a natural aesthetic.</li><li>It has added bio-content with less dust, and faster processing speeds vs. traditional wood flour.</li><li>It is suitable for injection molding, extrusion, and compounding processes.</li><li>NaturFil™ Pine Wood Flour Concentrate is recommended for automotive, furniture, consumer goods, agricultural and horticulture, building and construction.</li></ul>
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Santoweb® D

by LANXESS

Santoweb® D by Lanxess is a treated cellulose fiber product that provides reinforcement for uncured and cured rubber compounds. It is designed for raw edge V-belt base compounds, low-pressure hoses, gaskets, diaphragms, and tire bead apex compounds.<br> <ul style="padding-left: 40px;"><li>Increases product stiffness, green strength and reduces die swell, cold flow, and cut growth rate in rubber compounds. It also functions as a filler.</li> <li>Offers good bonding to the rubber matrix It does not cause compound staining.</li> <li>Santoweb® D should be used with a methylene donating chemical for applications in which adhesion of the fiber to the rubber matrix is critical.</li> <li>Santoweb® D shows compatibility with NR, SBR, BR, and CR. It contains 68% wood pulp and 32% SBR binder.</li> <li>The recommended dosage for improved green strength is at levels of 1-4% by weight, increased flexural stress at 5-15% by weight, and very significant fiber reinforcement at 10-20% by weight.</li></ul>
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Biofillers