Deacon CJ-429 & CJ-650 Injectable Sealant

What is the Deacon CJ-429 & CJ-650 Injectable Sealant?

Heat curing, Sealant / refractory hybrid, Dense paste (gallons) or putty (extruded), Brown color, Heavy fiber concentration. Designed for applications where conventional sealants would become brittle and powder, because of extreme heat and temperature, this compound is un-surpassed. Shelf-life is 6 months in closed containers. Refrigerated storage recommended (extruded version only). CJ-650 is a thinner version of CJ-429, great for pumping from 5 Gallon Pails.

What are the specifications of the CJ-429 & CJ-650 Injectable Sealant?

• Service Rating 600ºF to 1800ºF (315ºC to 982ºC)
• 5/8" x 3" Plugs, J-Sticks, 7/8" x 6" Sticks, Bulk Gallons, 5 Gallon Pails

What are the characteristics of the CJ-429 & CJ-650 Injectable Sealant?

• Excellent travel (even at elevated temps.)
• When fully cured, is not weak or brittle like ceramics or mortars
• Designed for very hot and dry conditions

Where is the CJ-429 & CJ-650 Injectable Sealant used?

• Flanges, Enclosures, Catalyst, Flue gas, Hydrogen, Super-heated steam, Extreme heat, Hot Air.

Which Deacon CJ-429 & CJ-650 Injectable Sealant do I order?

• CJ-429 J-Stick: part number 111-CJ-429 J-STICK
• CJ-429 Gallon: part number 111-CJ-429 GALLON
• CJ-429 Plug (Pack of 100): part number 111-CJ-429 PLUG
• CJ-650 Gallon: part number 111-CJ-650 GALLON
• CJ-650 5 Gallon Pail: part number 111-CJ-650 5 GAL

Some options here are sold by the pack and some as a single item, and the price follows the option: CJ-429 Plug (Pack of 100) is pack of 100. 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 600°F to 1800°F (315°C to 982°C). That places it above 50 of the other 54 on upper service temperature: Seal-Chief-SS Nuclear Grade stops at 1600°F.

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 CJ-429 & CJ-650 Injectable Sealant 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.