About Sealant Flexibility
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Non-Hardening Thread Sealants
Often used in high-vibration applications that could cause standard thread sealants to fail, these never fully harden and remain pliable enough to self-heal and stop leaks before they start. Formulated without PTFE, these sealants are less slippery and less likely to result in overtightenting than sealants that have PTFE, making them good for plastic pipe where overtightening could lead to cracks and breaks. They have low locking strength, so they can be adjusted without tools.
Container | Max. Pressure, psi | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Type | For Fluids | For Gases | Minimum Temp., °F | Maximum Temp., °F | For Max. Thread Dia. | Consistency | Specifications Met | Color | Each | |
Low Locking Strength | |||||||||||
Sealants | |||||||||||
| 2 fl. oz. | Brush-Top Bottle | 10,000 | 300 | -65° | 450° | 2" | Paste | MIL-S-15204, UL Recognized Component | Gray | 0000000 | 000000 |
| 8 fl. oz. | Brush-Top Can | 10,000 | 300 | -65° | 450° | 2" | Paste | MIL-S-15204, UL Recognized Component | Gray | 0000000 | 00000 |
Thread Sealants
These thread sealants are anaerobic, so they don’t begin to harden until coated surfaces are threaded together, blocking exposure to air.
Sealants with medium locking strength prevent threads from loosening due to vibration and shock. They require a hand tool to unthread.
To adhere to safety standards for drinking water systems, use sealants that meet NSF/ANSI 61.
Container | Max. Pressure, psi | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | Specifications Met | Color | Each | |
Medium Locking Strength | ||||||||||||
Sealants | ||||||||||||
| 1.7 | Tube | 10 min. | 24 hrs. | 10,000 | 300 | -65° to 400° | 2" | Paste | MIL-S-15204, NSF/ANSI 61, UL Listed | White | 00000000 | 000000 |
| 8.4 | Tube | 10 min. | 24 hrs. | 10,000 | 300 | -65° to 400° | 2" | Paste | MIL-S-15204, NSF/ANSI 61, UL Listed | White | 00000000 | 00000 |
Thread Sealants for Hydraulic and Compressed Air Systems
Formulated for high lubricity, these sealants allow easy assembly of finely threaded hydraulic and compressed air system components. They're also free of fillers that could contaminate system media. These sealants are anaerobic, so they 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 due to vibration and shock. They require a hand tool to unthread.
Container | Max. Pressure, psi | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | Specifications Met | Color | Each | |
Sealants | ||||||||||||
| 1.7 | Tube | 60 min. | 24 hrs. | 10,000 | 300 | -65° to 400° | 2" | Paste | MIL-S-15204, UL Listed | White | 00000000 | 000000 |
| 8.4 | Tube | 60 min. | 24 hrs. | 10,000 | 300 | -65° to 400° | 2" | Paste | MIL-S-15204, UL Listed | White | 00000000 | 00000 |
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.
Sealants that cannot be sold to the listed regions are restricted due to VOC (Volatile Organic Compounds) regulations.
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 | Cannot Be Sold To | Each | |
Medium Locking Strength | |||||||||||||||
Heat Cure Loctite® Sealants | |||||||||||||||
| 5540 | 16 | Can | 10 sec. | 12 hrs. | 2,900 | 2,900 | -40° to 1300° | 4" | Thin Liquid | MIL-S-15204 | Aluminum, Brass, Bronze, Iron, Stainless Steel, Steel, Titanium, Cast Iron, Galvanized Iron, Galvanized Steel, Metal, Tin, Pipe, Concrete | Brown | __ | 00000000 | 0000000 |
| 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 | 000000 |
High Locking Strength | |||||||||||||||
Heat Cure Sealants | |||||||||||||||
| __ | 32 | Can | 15 min. | 4 hrs. | 10,000 | 2,000 | -310° to 1500° | 2" | Thick Liquid | MIL-S-15204 | Aluminum, Brass, Bronze, Copper, Stainless Steel, Steel, Cast Iron, ABS Plastic, CPVC Plastic, PETG Plastic, PVC Plastic, PVDF Plastic | Black | Los Angeles County, CA; Orange County, CA; Riverside County, CA; San Bernardino County, CA | 0000000 | 000000 |