Deacon 189 Graphite Injectable Sealant / Packing

What is the Deacon 189 Graphite Injectable Sealant / Packing?

Exceptional temperature range and application uses. Non-curing, Graphite based, Dense, Highly compressible, Excellent travel, Superior chemical resistance, Gray color. Shelf-life is 1 year in closed containers / packages.

What are the specifications of the 189 Graphite Injectable Sealant / Packing?

• Service Rating -240ºF to 1800ºF (-151ºC to 982ºC) Vacuum to 4600 PSI (317 Bar)
• J-Sticks, Plugs, 7/8 x 6 sticks

What are the characteristics of the 189 Graphite Injectable Sealant / Packing?

• Thermal expansion above 380ºF (193ºC)
• No carrier extrusion
• Limited off-gassing
• Remains flexible at high temperatures
• Non-reactive to most volatile organic compounds, solvents, acids, alkalis, and corrosive gases

Where is the 189 Graphite Injectable Sealant / Packing used?

• Valves, Flanges, Clamps, Enclosures, Perimeter Seals, Wire Wraps, Stuffing Boxes, Pumps, Rotating Equipment.

Which Deacon 189 Graphite Injectable Sealant / Packing do I order?

• J-Stick: part number 111-189 J STICK
• Plug (Pack of 100): part number 111-189 PLUG
• 7/8 Stick (Pack of 35): part number 111-189 7/8 X 6

Some options here are sold by the pack and some as a single item, and the price follows the option: Plug (Pack of 100) is pack of 100; 7/8 Stick (Pack of 35) is pack of 35. Every other option is one item.

How does this grade compare with the rest of the Deacon range?

Across the 55 Deacon injectable sealants and compounds PE Energy stocks, this one is rated -240°F to 1800°F (-151°C to 982°C) Vacuum to 4600 PSI (317 Bar). That places it above 50 of the other 54 on upper service temperature: Seal-Chief-SS Nuclear Grade stops at 1600°F.

The limits that decide whether this grade is the right one rather than the one next to it are stated by the manufacturer: Thermal expansion above 380°F (193°C); Non-reactive to most volatile organic compounds, solvents, acids, alkalis, and corrosive gases.

Deacon publishes these ratings one product page at a time, so the comparison above is the part that is hard to assemble before you order. If your service condition sits near a boundary, send us the temperature and the medium with your enquiry and we will confirm the grade against the 2026 manufacturer catalogue before quoting.

How do I order or get a quote?

PE Energy supplies the Deacon 189 Graphite Injectable Sealant / Packing from the 2026 manufacturer catalogue. Order the part number for the option you need, or send us the part number with your application details and we return pricing and lead time.