About Sealant Flexibility
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Thread Sealants for Oxygen Systems
Completely free of oil and chemically inert, these sealants are safe to use with wet and dry oxygen systems. They contain PTFE, which provides a slippery surface that keeps threads from binding. These sealants are non-hardening, remaining pliable enough to self-heal and stop leaks before they start, so they’re often used in high-vibration applications that could cause standard thread sealants to fail. Since they have low locking strength, these sealants can be adjusted without tools.
The sealant in a tube is a good alternative to thread sealant tape—like tape, it forms PTFE strings between tightened threads, but excess material liquefies, so it won’t clog system components downstream.
Container | Max. Pressure, psi | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | For Fluids | For Gases | Temp. Range, °F | Max. Temp. for Oxygen, °F | For Max. Thread Dia. | Consistency | Color | Each | |
Low Locking Strength | ||||||||||
| 3.5 | Tube | 10,000 | 10,000 | -400° to 500° | 140° | 6" | Paste | White | 000000 | 000000 |
Thread Sealants for Refrigeration Systems
For use in refrigeration systems and applications exposed to strong chemicals, these sealants have excellent solvent resistance.
Anaerobic sealants don’t begin to harden until coated surfaces are threaded together, blocking exposure to air. These sealants have medium locking strength, which prevents threads from loosening with vibration and shock. They require a hand tool to unthread.
Non-hardening sealants never fully harden, remaining pliable enough to self-heal and stop leaks before they start, so they’re often used in high-vibration applications that could cause standard thread sealants to fail. Since they have low locking strength, these sealants can be adjusted without tools. These sealants are NSF registered H2 for use in food-processing areas, but they can’t come into contact with food.
Container | Max. Pressure, psi | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | For Use With | Color | Each | |
Medium Locking Strength | |||||||||||||
Loctite® Sealants | |||||||||||||
| 554 | 0.3 | Bottle | 10 sec. | 24 hrs. | 10,000 | 10,000 | -65° to 300° | 3" | Thick Liquid | Refrigerant R-12, Refrigerant R-134a, Refrigerant R-22, Refrigerant R-404A, Refrigerant R-407C, Refrigerant R-502 | Red | 00000000 | 000000 |
| 554 | 8.4 | Bottle | 10 sec. | 24 hrs. | 10,000 | 10,000 | -65° to 300° | 3" | Thick Liquid | Refrigerant R-12, Refrigerant R-134a, Refrigerant R-22, Refrigerant R-404A, Refrigerant R-407C, Refrigerant R-502 | Red | 00000000 | 000000 |
Vibra-Tite Sealants | |||||||||||||
| 446 | 0.3 | Bottle | 40 min. | 24 hrs. | 10,000 | 10,000 | -65° to 300° | 3" | Thick Liquid | Refrigerant R-12, Refrigerant R-134a, Refrigerant R-22, Refrigerant R-404A, Refrigerant R-407C, Refrigerant R-502 | Red | 00000000 | 0000 |
| 446 | 1.7 | Bottle | 40 min. | 24 hrs. | 10,000 | 10,000 | -65° to 300° | 3" | Thick Liquid | Refrigerant R-12, Refrigerant R-134a, Refrigerant R-22, Refrigerant R-404A, Refrigerant R-407C, Refrigerant R-502 | Red | 00000000 | 00000 |
| 446 | 8.4 | Bottle | 40 min. | 24 hrs. | 10,000 | 10,000 | -65° to 300° | 3" | Thick Liquid | Refrigerant R-12, Refrigerant R-134a, Refrigerant R-22, Refrigerant R-404A, Refrigerant R-407C, Refrigerant R-502 | Red | 00000000 | 00000 |
Container | Max. Pressure, psi | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | For Use With | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Low Locking Strength | ||||||||||||
Sealants | ||||||||||||
| 1 | Bottle | Not Rated | Not Rated | -35° to 425° | 6" | Thick Liquid | Refrigerant R-12, Refrigerant R-134a, Refrigerant R-22, Refrigerant R-404A, Refrigerant R-407C, Refrigerant R-502 | Clear | NSF Registered H2 | 2 | 00000000 | 000000 |