Why should synthetic fabrics be avoided in welding clothing?

• A. They are comfortable and durable.
• B. They can melt or ignite when exposed to heat.
• C. They are flame resistant and do not conduct heat.
• D. They are too heavy to wear during welding.

Answer: (B)

Fabric safety in welding hinges on how a material behaves when exposed to heat, sparks, or molten metal. You want clothing that won’t melt or catch fire and cling to the skin. Synthetic fabrics tend to melt or ignite when heated. If they melt, molten fibers can fuse to the skin and cause deep, severe burns; if they catch fire, they burn rapidly and can produce hot drips that worsen injuries. Because of this, welding clothing uses natural fibers like cotton or wool that resist melting and give you a safer, more manageable response to exposure. Some fabrics with synthetics may claim flame resistance, but that resistance isn’t reliable under welding temperatures, so the safest practice is to avoid them. The other choices miss the real hazard—melting and burning in heat—focusing on comfort, weight, or general flame resistance instead.