Graphite Packing | McMaster-Carr

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Maximum Pressure

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

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Maximum Pressure in Pumps

Color

Reinforcement Material

pH Resistance

Maximum Pressure in Valves

Minimum Temperature

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Maximum Pressure in Steam

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Export Control Classification Number (ECCN)

EAR99

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DFARS Specialty Metals

Exempt

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Polished

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GFO

Maximum Temperature in Steam

1,200° F

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99 Products

Heat-Shielding Chemical-Resistant Packing Seals

The graphite filler in these expanded PTFE seals dissipates heat away from the shaft, so your pump runs cool at high speeds. Use these seals in applications involving acids, alkalies, brines, and solvents. Cut them to size with a knife; then pack them into place.

GFO seals, also known as 100% GFO, are made entirely of Gore materials.

Seals

										25 ft.
Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		Each
1/8"	1/8"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000
3/16"	3/16"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00000
1/4"	1/4"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000
5/16"	5/16"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000
3/8"	3/8"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000
7/16"	7/16"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000
1/2"	1/2"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000
5/8"	5/8"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000
3/4"	3/4"	1,500	450	1,500	3,800	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000

GFO Seals

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	000000	000000	000000	000000
3/16"	3/16"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	000000	00000	00000	000000
1/4"	1/4"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	000000	00000	00000	000000
5/16"	5/16"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00000	000000	000000
3/8"	3/8"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000
7/16"	7/16"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000
1/2"	1/2"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000
5/8"	5/8"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000
3/4"	3/4"	300	300	Not Rated	4,300	-400° to 550°	0-14	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000

High-Speed Chemical-Resistant Packing Seals

Built for high-speed pump and valve applications, these super-tough seals are made of expanded-graphite yarn with carbon-yarn corners. Use them with acids, alkalies, brines, and solvents. Cut these seals to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/4"	1/4"	3,000	500	3,000	3,000	4,000	-300° to 1200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000
5/16"	5/16"	3,000	500	3,000	3,000	4,000	-300° to 1200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00000	00000	000000
3/8"	3/8"	3,000	500	3,000	3,000	4,000	-300° to 1200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00000	00000	000000
7/16"	7/16"	3,000	500	3,000	3,000	4,000	-300° to 1200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00000	000000	000000
1/2"	1/2"	3,000	500	3,000	3,000	4,000	-300° to 1200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00000	000000	000000
5/8"	5/8"	3,000	500	3,000	3,000	4,000	-300° to 1200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000
3/4"	3/4"	3,000	500	3,000	3,000	4,000	-300° to 1200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000

Heat-Shielding Abrasion- and Chemical-Resistant Packing Seals

Made of ePTFE with a graphite filler and reinforced by Aramid, these seals combine heat protection with chemical and abrasion resistance. Often used in pumps, their base material is ePTFE, so they’ll stand up to chemicals such as acids, alkalies, brines, and solvents. The added graphite filler dissipates heat away from shafts, preventing your pump from overheating even at high speeds. To extend their life, the corners of these seals are reinforced with Aramid, which resists abrasion and prevents extrusion. Cut them to size with a knife and then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Maximum Pressure in Valves, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/4"	1/4"	2,500	700	2,500	2,700	-10° to 500°	3-11	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00	000000	0000000
3/8"	3/8"	2,500	700	2,500	2,700	-10° to 500°	3-11	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	000000	000000	000000
1/2"	1/2"	2,500	700	2,500	2,700	-10° to 500°	3-11	Black	Acids, Alkalies, Brines, Oil, Solvents, Water	0000000	00000	000000	000000

Low-Friction Oil- and Water-Resistant Packing Seals

Since they require lighter packing pressure than standard oil- and water-resistant packing seals, these seals cause less friction and reduce shaft wear. They are for use in pumps and valves. Cut them to size with a knife; then pack them into place.

Aramid fiber seals resist wear and abrasion better than acrylic fiber seals, so they last longer.

Graphite-Filled Acrylic Fiber
Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	000000	000000	000000
3/16"	3/16"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00	00000	00000
1/4"	1/4"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00	00000	00000
5/16"	5/16"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
3/8"	3/8"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
7/16"	7/16"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
1/2"	1/2"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
5/8"	5/8"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
3/4"	3/4"	1,500	100	Not Rated	100	2,400	-10° to 450°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00	000000	000000
Graphite-Filled Aramid Fiber
1/8"	1/8"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	00000
3/16"	3/16"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	00000
1/4"	1/4"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
5/16"	5/16"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
3/8"	3/8"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	00000	000000
7/16"	7/16"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	000000	000000
1/2"	1/2"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	00000	000000	000000
5/8"	5/8"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	000000	000000	000000
3/4"	3/4"	1,200	200	1,200	Not Rated	2,000	-400° to 600°	3-11	Gray	Brines, Oil, Solvents, Water	0000000	000000	000000	000000

Heat-Shielding Oil- and Water-Resistant Packing Seals

Synthetic yarn that’s comparable in strength to aramid is combined with graphite for soft seals that dissipate heat away from the shaft to extend the life of pumps. Cut these seals to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	0000000	000000	000000	000000
3/16"	3/16"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	0000000	00000	00000	00000
1/4"	1/4"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	00000000	00000	00000	000000
5/16"	5/16"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	00000000	00000	00000	000000
3/8"	3/8"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	00000000	00000	000000	000000
7/16"	7/16"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	00000000	00000	000000	000000
1/2"	1/2"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	00000000	000000	000000	000000
5/8"	5/8"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	00000000	000000	000000	000000
3/4"	3/4"	800	800	2,500	-400° to 550°	1-13	Black	Brines, Oil, Water	00000000	000000	000000	000000

High-Flexibility Steam-Resistant Packing Seals

Offering excellent flexibility for steam applications in pumps and valves, these seals are made of expanded graphite yarn. Cut them to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	0000000	000000	000000	000000
3/16"	3/16"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	0000000	00000	00000	00000
1/4"	1/4"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	0000000	00000	00000	00000
5/16"	5/16"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	00000000	00000	00000	00000
3/8"	3/8"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	00000000	00000	00000	00000
7/16"	7/16"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	00000000	00000	00000	000000
1/2"	1/2"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	00000000	00000	00000	000000
5/8"	5/8"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	00000000	00000	00000	000000
3/4"	3/4"	2,500	250	2,500	2,500	4,000	-400° to 1200°	0-14	Gray	Steam, Water	00000000	00000	00000	000000

Steam-Resistant Packing Seals

Use these graphite-impregnated graphite seals for steam applications in pumps and valves. Cut them to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Max. Speed, fpm	Min. Temp., °F	Max. Temp., °F	pH Resistance	Color		5 ft.	10 ft.	25 ft.
1/8"	1/8"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	000000	000000	000000	000000
3/16"	3/16"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	000000	00000	00000	000000
1/4"	1/4"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	0000000	00000	00000	000000
5/16"	5/16"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	0000000	00000	000000	000000
3/8"	3/8"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	0000000	00000	000000	000000
7/16"	7/16"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	0000000	000000	000000	000000
1/2"	1/2"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	0000000	000000	000000	000000
5/8"	5/8"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	0000000	000000	000000	000000
3/4"	3/4"	3,500	500	3,500	3,500	4,000	Not Rated	600°	1-14	Gray	0000000	000000	000000	00000000

Wire-Reinforced Steam-Resistant Packing Seals

The Inconel-wire reinforcement in these expanded-graphite yarn seals ensures they keep their shape longer than the High-Flexibility Steam-Resistant Packing Seals. Use them for steam applications in valves. Cut these seals to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	000000	000000	000000
3/16"	3/16"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	00000	00000
1/4"	1/4"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	00000	00000
5/16"	5/16"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	00000	00000
3/8"	3/8"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	00000	00000
7/16"	7/16"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	00000	00000
1/2"	1/2"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	00000	000000
5/8"	5/8"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	00000	000000
3/4"	3/4"	3,500	3,500	3,500	-100° to 1200°	1-14	Gray	Steam, Water	000000000	00000	000000	000000

High-Speed Steam-Resistant Packing Seals

Made of graphite-impregnated carbon, these steam-resistant seals dissipate heat from the shaft to protect pumps and valves when operating at high speeds. Cut them to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Max. Speed, fpm	Min. Temp., °F	Max. Temp., °F	pH Resistance	Color		5 ft.	10 ft.	25 ft.
1/8"	1/8"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	000000	000000	000000	000000
3/16"	3/16"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	000000	00000	00000	000000
1/4"	1/4"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	000000	00000	00000	000000
5/16"	5/16"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	0000000	00000	000000	000000
3/8"	3/8"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	0000000	00000	000000	000000
7/16"	7/16"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	0000000	000000	000000	000000
1/2"	1/2"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	0000000	000000	000000	000000
5/8"	5/8"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	0000000	000000	000000	000000
3/4"	3/4"	3,500	500	3,500	3,500	4,400	Not Rated	600°	1-14	Gray	0000000	000000	000000	000000

Packing Seal Tape

Plain Back

Adhesive Back

For use in valves and pumps, this thin, flexible tape is made from high-purity graphite with no fibers or binders that could contaminate your process line. Graphite is self-lubricating, plus it provides outstanding performance over a wide temperature range.

Adhesive-back tape stays in place during installation.

Plain Back
Wd.	Thick.	Temperature Range, °F	Temperature Range in Steam, °F	pH Resistance	Color	For Use With	Lg., ft.		Each
1/4"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	000000
1/2"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	00000
3/4"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	00000
1"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	00000
Adhesive Back
1/4"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	00000
1/2"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	00000
3/4"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	00000
1"	0.015"	-320° to 840°	212° to 1,200°	0-14	Gray	Acids, Alkalies, Brines, Oil, Solvents, Water	50	0000000	00000