Teflon finish for dry filtration. Withstand 1000F temperatures
ptfe fiberglass thread PTFE coated fiberglass thread is made from continuous fiberglass filaments that are heat resistant, chemical resistant, and strong. The fiberglass is also coated with a PTFE, a.k.a Teflon (tm) finish to improve sewability, and reduce friction. It can withstand operating temperatures to around 1022 F (550 C). It is important to note the PTFE coating burns away at 620 F (320 C). This means the coating will propagate flame, but the fiberglass will have a greater heat resistance.

New ! All Groz-Beckert Machine Needles and C.S. Osborne Hand Sewing Needle Kits

Information
Code Description Image Price Stock  
PTF012NATL01FG PTFE Coated Fiberglass - Size 12 (Tex 135) - Natural - Nominal 1 Oz Spool - 187 Yards Natural Color Chip $10.59 4
PTF012NATL02FG PTFE Coated Fiberglass - Size 12 (Tex 135) - Natural - Nominal 2 Oz Spool - 375 Yards Natural Color Chip $19.49 8
PTF012NATL04FG PTFE Coated Fiberglass - Size 12 (Tex 135) - Natural - Nominal 4 Oz Spool - 750 Yards Natural Color Chip $35.59 6
PTF012NATL08FG PTFE Coated Fiberglass - Size 12 (Tex 135) - Natural - Nominal 8 Oz Spool - 1500 Yards Natural Color Chip $62.79 2
PTF012NATL32FG PTFE Coated Fiberglass - Size 12 (Tex 135) - Natural - Nominal 32 Oz Spool - 6000 Yards Natural Color Chip $199.99 2
PTF018NATL00FG PTFE Coated Fiberglass - Size 18 (Tex 210) - Natural - Nominal 100 Yard Hand Stitching Tube Natural Color Chip $9.49 5
PTF018NATL01FG PTFE Coated Fiberglass - Size 18 (Tex 210) - Natural - Nominal 1 Oz Spool - 131 Yards Natural Color Chip $10.59 5
PTF018NATL02FG PTFE Coated Fiberglass - Size 18 (Tex 210) - Natural - Nominal 2 Oz Spool - 262 Yards Natural Color Chip $19.49 5
PTF018NATL04FG PTFE Coated Fiberglass - Size 18 (Tex 210) - Natural - Nominal 4 Oz Spool - 525 Yards Natural Color Chip $35.59 6
PTF018NATL08FG PTFE Coated Fiberglass - Size 18 (Tex 210) - Natural - Nominal 8 Oz Spool - 1050 Yards Natural Color Chip $62.79 6
PTF018NATL32FG PTFE Coated Fiberglass - Size 18 (Tex 210) - Natural - Nominal 32 Oz Spool - 4200 Yards Natural Color Chip $199.99 15
PTF024NATL00FG PTFE Coated Fiberglass - Size 24 (Tex 280) - Natural - Nominal 100 Yard Hand Stitching Tube Natural Color Chip $9.49 1
PTF024NATL01FG PTFE Coated Fiberglass - Size 24 (Tex 280) - Natural - Nominal 1 Oz Spool - 99 Yards Natural Color Chip $10.59 6
PTF024NATL02FG PTFE Coated Fiberglass - Size 24 (Tex 280) - Natural - Nominal 2 Oz Spool - 197 Yards Natural Color Chip $19.49 5
PTF024NATL04FG PTFE Coated Fiberglass - Size 24 (Tex 280) - Natural - Nominal 4 Oz Spool - 394 Yards Natural Color Chip $35.59 5
PTF024NATL08FG PTFE Coated Fiberglass - Size 24 (Tex 280) - Natural - Nominal 8 Oz Spool - 788 Yards Natural Color Chip $62.79 5
PTF024NATL32FG PTFE Coated Fiberglass - Size 24 (Tex 280) - Natural - Nominal 32 Oz Spool - 3150 Yards Natural Color Chip $199.99 7

Related Products 

Kevlar Thread
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 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 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
hand sewing needles
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

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 

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

Nylon Thread
nylon thread

Polyester Thread
polyester thread

Nylon and Polyester Thread - Use a heavier weight nylon or polyester thread instead of a lighter weight Kevlar. For example, a Size 138 nylon or polyester thread has about the same strength as a Size 69 Kevlar thread, costs about 80% less, and comes in colors. But, it is twice as thick, not fire retardant, and has 25% elasticity.

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