Filter by
Maximum Temperature
Maximum Pressure for Gases
Reaches Full Strength
For Use With
For Use On
Locking Strength
Manufacturer Model Number
Consistency
Manufacturer
Container Type
Begins to Harden
Military Specification
For Maximum Thread Diameter
Maximum Pressure for Fluids
Minimum Temperature
DFARS Specialty Metals
Export Control Classification Number (ECCN)
Heating Requirements to Reach Full Strength
Clarity
Cure Type
For Use Outdoors
Color
Container Size
About Sealant Flexibility
More
High-Temperature Thread Sealants

These sealants have high locking strength, so they work in demanding applications, such as securing mounting studs in motor housings. They also withstand applications with large temperature swings.
Heat cure sealant requires heat of at least 212° F to harden. Above 300° F, the sealant hardens in about 15 minutes. For temperatures below 300° F, it may take up to 4 hours to harden. It requires both heat and a hand tool to unthread.
1500° F max. temp. sealants are for use on cement-lined pipe joints prior to welding. The heat from the welding torch helps them begin to harden.
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 | Specifications Met | For Use On | Color | Each | |
Medium Locking Strength | ||||||||||||||
Heat Cure Loctite® Sealants | ||||||||||||||
5550 | 32 | Can | 10 sec. | 2 hrs. | 5,000 | 5,000 | -40° to 1500° | 6" | Paste | MIL-S-15204 | Aluminum, Brass, Bronze, Iron, Stainless Steel, Steel, Titanium, Cast Iron, Galvanized Iron, Galvanized Steel, Metal, Tin, Concrete | Brown | 00000000 | 0000000 |