About Flame Resistant Fabrics

All wearing apparel sold in the US must meet flammability standards established by the Flammable Fabrics Act of 1955. The Act establishes three classes of flammability based on the ease of ignition and the time it takes the flame to spread.

  Class Flame Spread Time
Class 1 Normal Flammability 4 seconds or more.
Class 2 Intermediate Flammability 4 to 7 seconds before the base fabric ignites. This class applies to fabrics having a raised fiber surface or nap.
Class 3 Rapid, intense burning Less than 4 seconds. These fabrics may not be used for apparel sold in the US.
 

Certain work environments and occupations such as fire fighting require high-performance fabrics that significantly slow the spread of flames.

 flame resistant FAQs
 care for flame resistant garments