Flame Retardant Modacrylic Fiber



Modacrylic fibers are made from resins that are copolymers (combinations) of acrylonitrile and other materials, such as vinyl chloride, vinylidene chloride or vinyl bromide. Modacrylic fibers are either dry spun or wet spun.

Modacrylic fibers are inherently flame-resistant, meaning they have intrinsic FR properties. They are commonly used in blends with other FR fibers like lyocell, aramid, or polyamide-imide fibers, resulting in a durable fabric that offers increased comfort without compromising FR protection.

IT creates excellent charring characteristics without melting or dripping when exposed to flame and high temperature. The char forming barrier will work to prevent the flame spread and stop the burning when the flame source is removed. As there is no melting or dripping, it ensures that no potentially dangerous molten droplets are produced which could stick to the skin and cause severe burns such as may occur with polyester or other thermoplastic fibers.

When it comes to flame-resistant (FR) clothing, durability, comfort, and protection are all crucial aspects to consider. Modacrylic fibers are known for checking all these boxes. This synthetic fiber is soft, strong, and resilient, making it an extremely suitable choice for protective clothing and technical FR fabrics. Below, you will understand why you should consider Modacrylic fibers in your PPE.

The lightweight durability, intrinsic flame-resistant nature, and blended FR fabric possibilities of modacrylic fibers make them an affordable consideration in PPE garment selection.

So, when you shop for your next comfortable, flame-resistant PPE, make sure to give fabrics made with modacrylic fibers the necessary consideration.

Besides the flame-resistant properties, modacrylic fiber’s abrasion resistance and tenacity are low, resulting in high durability similar to wool. Also, they offer a lower level of heat conduction and ventilation. The fabrics are thus soft, warm, and resilient.

Adding to this, modacrylics also offer the following benefits:

  • Dimensionally stable and soft
  • Strong and resilient
  • Have good press and shape retention
  • Easy to dye to bright shades
  • Abrasion resistant
  • Flame resistant
  • Quick drying
  • Resistant to acids and alkalies
  • Shape retentive
  • Modacrylic fibers are also non-allergenic, resistant to chemicals and solvents, and are not susceptible to moths or mildew.



  • Apparel:Deep-pile coats, trims and linings, simulated fur, wigs and hair pieces, children’s sleepwear, career apparel
  • Fabric:Fleece, knit-pile fabric backings, nonwovens
  • Home Furnishings: Awnings, blankets, carpets, flame-resistant draperies and curtains, scatter rugs
  • Other Uses:Filters, industrial fabrics, paint rollers, stuffed toys


Specification: 1.2D,2D,3D,6D,15D/38MM-100MM


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