Fire Retardant Sewing Thread - Tex 50 - Rubystone

Kevlar Thread

Kevlar thread is heat resistant to 800F. Use up to size 69 in home sewing machines. It is also one of the strongest commercially available threads, but it only comes in yellow.

Fire Retardant Sewing Thread

Fire Retardant Sewing Thread - Use for sewing fire retardant gear like racing suits, welding apparel, and firefighting gear. Heat resistant to 700F.

Fire Retardant Embroidery Thread

Fire Retardant Embroidery Thread - Looks and performs like regular embroidery thread. Use it for embroidering names and logos on fire retardant clothing and gear. Heat resistant to 700F.

PTFE Coated Fiberglass Thread

PTFE coated fiberglass thread is made from continuous fiberglass filaments that are heat resistant, chemical resistant, and strong. The PTFE Coating is heat resistant to 620F. The fiberglass filament has a 1022F operating temperature.

Nomex Thread


Nomex thread is heat resistant to 700F. Use up to size 69 in home sewing machines. With very few exceptions, it only comes in white.

Needles
 

Groz-Beckert Needles with cross reference to other brands, needle size charts, and our exclusive needle / machine use guide.

Nylon Thread

Polyester Thread

Aurifil Cotton

Cotton thread has a lower heat resistance. It chars, but it does not melt.