Deacon 770-L (Liquid) High temperature thermal reactive sealing compound
Deacon 770-L is a thermal reactive liquid sealing compound that is used in high temperature and high pressure applications. In the presence of heat (200oF+), Deacon 770-L will form a mechanical (“mechanical type”) seal. Deacon 770-L will not cement the flanges together, thus, it will not interfere with future repairs of metal-to-metal joints. Deacon 770-L is unaffected by thermal cycling.
NOTE: Sealant material must be confined within a joint, as opposed the being applied topically.
Temperature Range: 200 F to 950 F. Customer feedback report applications in use from 100 F to 1300 F +
Deacon 770-L Recommended Applications
Deacon 770-L can be used as gasket dressing to improve the sealing capability of many gaskets. Deacon 770-L can also be applied to many types of gaskets (including spiral wound) to reseal them, thereby prolonging their useful life. Deacon 770-L can be used as the only sealant on low-tolerance metal- to-metal joints.
Deacon 770-L is brushed onto the sealing surface in a complete, uniform, thin coating. Note: Deacon 770-L will flow filling small voids, and surface irregularities creating a seal between the gasket and the flange surface where most leak problems initiate.
NOTE: Sealant material must be confined within a joint, as opposed the being applied topically.
Deacon 770-L Service Rating
- 200°F (93°C) to 950°F (510°C)
- Up to 11,000 psi (758 bar)
Typical Applications for Deacon 770-L
Turbine Split Casing, Any Metal to Metal Joints, Pump Casing, Leaking Gaskets, Boilers, Threaded Fittings, Doors, Steam Traps, Stacks, Sight Glasses, Flanges, Nuts & Bolts, Heat Exchangers, Pressure Vessels.
Deacon 770-L Features
Ease of application. Achieves seal before full cure. Fast, easy repairs. High-pressure tolerance, high temperature tolerance, and high chemical tolerance. Solvents, Oils, Steam, Liquors, Hydrocarbons. Creates a mechanical seal. High wear resistance. Unaffected by thermal cycling. Applications as a gasket dressing. Deacon 770-L improves the sealing capability of many gasket materials.
Deacon 770-L Shelf Life
- Two years in unopened containers
Deacon 770-L Instructions
- Surface should be clean and dry (free from oil or foreign material to ensure proper sealing/adhesion)
- Apply a thin coat to sealing surface with brush (if sealing threads, apply only to the male threads)
- Close and tighten joint (torqued to the equipment manufacturer’s specifications if sealing a bolted flange)
- Product will cure in service with heat (See Note)
Note: In high pressure applications or when pressure testing at ambient, it is recommended to pre-cure with a heat gun, oven, or to dry fire / blow down at atmospheric (running heat without pressure). Unlike silicone or epoxy products, our thermosetting sealants require heat to cure.
Deacon 770-L Resources
| Cross Reference | For a complete packing cross reference list, please see our Packing Cross Reference Guide. |
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