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The Melting Temperature of Nomex Yarn

Nomex is a synthetic material chemically similar to both nylon and kevlar. It was developed by chemical company DuPont in the early 1960s. It is not as strong as kevlar but is very resistant to extreme temperatures. For this reason, it is used in clothing for firefighters, racecar drivers and Air Force pilots.

Melting Point
- Nomex does not actually have a melting point, because it does not melt. In fact, this is one of the selling points of the material -- even at very high temperatures, it will not melt and drip onto the wearer, a big danger for nylon and polyester fabrics. Instead, Nomex chars, or "carbonizes" at around 800 degrees Fahrenheit.
Use in Firefighting
- Nomex hoods are standard issue for firefighters due to their heat-resistant properties. The hood is placed over the helmet and protects areas of the head that aren't protected by the helmet.
Use in Racecar Driving
- Following several high-profile deaths of racecar drivers in fiery crashes during the early '60s, drivers began wearing suits incorporating Nomex. They also wear underwear, socks and gloves made from Nomex. Pit crews are also protected by Nomex in case of pit accidents or exposure to burning fuel from crashes.
Other Uses
- Nomex clothing is also used to protect military pilots, space shuttle crews and people whose jobs involve handling rocket or jet fuel. It can also provide protection from splashes of molten metal or electrical arc discharges and therefore has a wide range of other industrial applications.

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