E-Flex Ultra Fine Microgranules The smooth, lightweight way to invisibly add strength and sustainability to your project. For increased durability, smooth mixing and flawless surfaces where precision and flow matter most. Ideal for creating durable grout mixes, 3D printing and precast applications. E-Flex Ultra Fine Microgranules Description: E-Flex Ultra Fine blends effortlessly into a variety of industrial applications as a filler material, capable or supporting strength and performance benefits in asphalt, concrete and composites. Its flowable characteristics, ensure quick dispersion for a uniform surface. It offers excellent pigment performance and minimal fiber visibility, enhancing both the appearance and durability of your projects. Fibrous microgranules, including fine strands under 12 mm in length, with minor variations possible. Available in bulk bags (~1,000 lbs) and alternate packaging upon request. Key Benefits: Improved toughness, ductility, energy absorption and fatigue resistance in a variety of industrial applications Support drain down and leakage control in asphalt application Disperses quickly during mixing Pigments extremely well Extremely high chemical resistance Eco-friendly: made from 100% recycled materials Applications: Precast Filler 3D printable concrete Grout mix Composites Decorative concrete Gallery Image Gallery Image Gallery Image Download Safety Data Sheet Want more product details or see how to get E-Flex Ultra Fine in your next project? Start a project consultation. Enhanced durability Extends pavement lifetime Faster installation Reduced labor and material costs Excellent workability Superior finishing Sustainability AND Performance You Don’t Have to Choose One Meeting regulatory standards: Our products help companies comply with industry-wide programs, including LEED certification and state-specific environmental goals, such as California’s ambitious carbon neutrality target. Driving industry change: By providing a sustainable alternative to traditional materials, we empower companies to embrace eco-friendly solutions and position themselves as leaders in sustainability. Made in the USA: All our reinforcement fibers are readily available and made in the USA from domestic and global materials. Contact us to discuss tariff-free shipping options. FAQ How does E-Flex Ultra Fine compare to standard fiber reinforcement? Unlike traditional fibers, E-Flex Ultra Fine is a specialized fibrous microgranual fiber containing fine strands under 12 mm in length. This unique format allows for superior dispersion throughout the mix while maintaining the reinforcement benefits you expect from REGEN Fiber products. The ultra-fine composition is particularly valuable for decorative and surface applications where visible fibers would be undesirable. What makes E-Flex Ultra Fine ideal for decorative concrete? E-Flex Ultra Fine offers exceptional pigment performance for decorative applications. Its microscale reinforcement works seamlessly with colorants and decorative treatments without interfering with aesthetic finishes. You get the structural benefits of fiber reinforcement plus excellent workability and finishing characteristics—all with a 100% recycled product that enhances your project’s sustainability profile. What applications are best suited for E-Flex Ultra Fine? E-Flex Ultra Fine excels in decorative concrete applications, stamped surfaces, thin overlays, and any project requiring superior finishing with no visible fibers. It’s particularly valuable for architectural concrete where appearance is as important as performance. The product integrates seamlessly with pigments while providing reinforcement at the micro-scale level. How does E-Flex Ultra Fine affect workability and finishing? One of E-Flex Ultra Fine’s key advantages is its exceptional workability and finishing characteristics. The fibrous microgranuales distribute evenly throughout the mix without clumping or balling, allowing for smooth application and superior surface finishes. This makes it ideal for decorative concrete where surface quality is critical, completely eliminating the need to burn off or grind down protruding fibers.