Deacon 720-SF Injectable Sealant – Silica Free

What is the Deacon 720-SF Injectable Sealant – Silica Free?

Heat curing, Dense putty impregnated with metal and carbon fibers, Tan color. Below 550ºF (288ºC), speed up the cure by adding SF-ACC Accelerator (always use accelerator when sealing boiler feed water). Shelf-life is 6 months in closed container. Refrigerated storage recommended.

What are the specifications of the 720-SF Injectable Sealant – Silica Free?

• Service Rating 250ºF to 950ºF (121ºC to 510ºC)
• 5/8" x 3" Plugs, J-Sticks, 7/8" x 6" Sticks

What are the characteristics of the 720-SF Injectable Sealant – Silica Free?

• Outstanding bridging and plugging capabilities
• Will expand and contract with the joint
• Contains less than 1% silica

Where is the 720-SF Injectable Sealant – Silica Free used?

• High pressure boiler feed water, Steam, Condensate, Hydrocarbons. Designed for bridging large gaps or voids such as uneven flange faces.

Which Deacon 720-SF Injectable Sealant – Silica Free do I order?

• J-Stick: part number 111-720-SF J-STICK
• Plug (Pack of 100): part number 111-720-SF PLUG
• 7/8 Stick (Pack of 24): part number 111-720-SF 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 24) is pack of 24. 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 250°F to 950°F (121°C to 510°C). That places it above 22 of the other 54 on upper service temperature: HF-700 Rubber Compound stops at 700°F, and 909 continues to 1000°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 720-SF Injectable Sealant – Silica Free 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.