Frequently Asked Questions

  1. What is Basalt?

    Basalt is an igneous rock formed by the rapid cooling of basalt lava exposed to the surface of the Earth. Usually black or grey in color, basalt is one of the most common rocks on Earth and can be found throughout the globe. The most famous basalt deposit is the Giants Causeway in Northern Ireland where pillars of basalt rock are one of Earth’s natural wonders.

  2. What is Basalt Fiber?

    Basalt Fiber is a material made from basalt rock, which is a superior alternative to e-glass and a low cost substitute for high-strength fiberglass and carbon fiber.

  3. What applications does Basalt Fiber have?

    Mafic Basalt Fiber can be used for anything from rebar, filters, and fireproof materials to piping or car parts.

  4. What are the best aspects of Mafic Basalt Fiber?

    Mafic Basalt fiber has a naturally high modulus, high tensile strength, alkali resistance, and temperature resistance. Additionally Mafic has rigorous quality standards to ensure delivery of high quality product, on time, every time.

  5. Is Basalt Fiber good for the environment?

    Yes, Mafic Basalt Fiber is made from naturally occurring rock and does not require excessive chemical treatment unlike other fiber alternatives. Our fiber can improve the lifespan of many products and structures which reduces the cost to the environment associated with repair and replacement.

  6. How is Mafic Basalt Fiber produced?

    Mafic Basalt Fiber is basalt rock that is melted, drawn into filaments, and treated to improve its properties of adhesion. Once in filament form Mafic Basalt Fiber can be processed into continuous fiber, chop fiber, or any number of finished products.

  7. What are some common Basalt Fiber characteristics?

    Basalt fibers are naturally strong while still being extremely light weight. Fibers exhibit the strength of steel at a fraction of the weight. Basalt fiber is naturally chemical and alkali resistant which allows it to persevere in high salinity environments, like seawater, where other materials struggle to perform for long periods of time. Basalt is exceptionally resilient in extreme temperatures. Basalt also possesses a naturally high abrasion resistance making it the perfect material for high friction environments. Basalt is naturally non-toxic.

  8. Does Mafic offer resin?

    Yes, Mafic offers the Hoplite Long Fiber Thermoplastic (LFT) Resin line of products to service our customers resin needs.

  9. Why is Hoplite LFT unique?

    Hoplite LFT allows our customers to cut cost and reduce environmental impact by reducing the weight of their parts while maintaining high strength and performance using LFT technology.

  10. What are Long Fiber Thermoplastics (LFT)?

    LFT are high strength composite resins which can be used for injection molding or other processes to make parts and products. LFT are different to other composite resins because the fibers in LFT are longer and unidirectional which adds strength and durability to finished products.

  11. How can I contact Mafic for more information?

    Click here or send an email to

  12. How can I purchase Mafic Basalt Fiber and Hoplite LFT?

    Someone in our sales department will be happy to assist you if you visit our Contact Us page or send us an email at

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