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High-Temperature Thread Sealants
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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—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.
1,500° F Maximum Temperature—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 | Temp., ° F | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden, sec. | Reaches Full Strength, hr. | For Fluids | For Gases | Min. | Max. | For Max. Thread Dia. | Consistency | Mil. Spec. | For Use On | Color | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Medium Locking Strength | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Heat Cure Loctite® | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5540 | 16 | Can | 10 | 12 | 2,900 | 2,900 | -40 | 1,300 | 4" | Thin Liquid | MIL-S-15204 | Pipe, Aluminum, Brass, Bronze, Cast Iron, Concrete, Iron, Metal, Stainless Steel, Steel, Tin, Titanium, Galvanized Iron, Galvanized Steel | Brown | 1959A101 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5550 | 32 | Can | 10 | 2 | 5,000 | 5,000 | -40 | 1,500 | 6" | Paste | MIL-S-15204 | Aluminum, Brass, Bronze, Cast Iron, Concrete, Iron, Metal, Stainless Steel, Steel, Tin, Titanium, Galvanized Iron, Galvanized Steel | Brown | 1959A102 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Non-Hardening Thread Sealants with PTFE
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Applicator-Top Can |
PTFE provides a slippery surface that keeps threads from binding. These 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.
NSF/ANSI 61—Sealants that meet NSF/ANSI 61 adhere to safety standards for drinking water systems.
Container | Max. Pressure, psi | Temp., ° F | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Size, fl. oz. | Type | For Fluids | For Gases | Min. | Max. | For Max. Thread Dia. | Consistency | Food Industry Std. | Certification | Color | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Low Locking Strength | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Slic-Tite | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4 | Applicator-Top Can | 10,000 | 3,000 | -50 | 500 | 2" | Paste | NSF/ANSI 61 | UL Listed | White | 5477K13 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 8 | Applicator-Top Can | 10,000 | 3,000 | -50 | 500 | 2" | Paste | NSF/ANSI 61 | UL Listed | White | 5477K14 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 16 | Applicator-Top Can | 10,000 | 3,000 | -50 | 500 | 2" | Paste | NSF/ANSI 61 | UL Listed | White | 5477K16 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 32 | Applicator-Top Can | 10,000 | 3,000 | -50 | 500 | 2" | Paste | NSF/ANSI 61 | UL Listed | White | 5477K17 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
