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. VOC (Volatile Organic Compounds) regulations restrict sales to the listed jurisdictions/areas.
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 | Cannot Be Sold To | Each | |
Sealants | |||||||||||||
| 1.7 | Bottle | 6 hrs. | 24 hrs. | 10,000 | 300 | -65° to 300° | 2" | Thin Liquid | ASTM D5363, MIL-S-22473 Grade JV | Yellow | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT | 00000000 | 000000 |
| 1.7 | Tube | 60 min. | 24 hrs. | 10,000 | 300 | -65° to 400° | 2" | Paste | MIL-S-15204, UL Listed | White | __ | 00000000 | 00000 |
| 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 |
High-Density Thread Sealant Tape
This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.
Max. Pressure, psi | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg., yd. | Density, g/cm3 | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Specifications Met | Color | 1-11 | 12-Up | |
PTFE  | |||||||||||
0.0032" Thick. | |||||||||||
| 1/4" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1/2" | MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
| 1/4" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1/2" | MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II | Gray | 0000000 | 0000 | 0000 |
| 3/8" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 3/4" | MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II | White | 0000000 | 0000 | 0000 |
| 3/8" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 3/4" | MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II | Gray | 0000000 | 0000 | 0000 |
| 1/2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1" | MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II | White | 0000000 | 0000 | 0000 |
| 1/2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1" | MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II | Gray | 0000000 | 0000 | 0000 |
| 3/4" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1 1/2" | MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II | White | 0000000 | 0000 | 0000 |
| 3/4" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II | Gray | 0000000 | 0000 | 0000 |
| 1" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 2" | MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 0000 |
| 1" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 2" | MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II | Gray | 0000000 | 00000 | 00000 |
| 1 1/2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 3" | MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
| 1 1/2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 3" | MIL-T-27730 UL Listed C-UL Listed MIL-A-A-58092 Type II | Gray | 0000000 | 00000 | 00000 |
| 2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 4" | MIL-T-27730 FDA Compliant 21 CFR 177.1550 UL Listed C-UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
0.0035" Thick. | |||||||||||
| 1/4" | 14 | 1.9 | 10,000 | 10,800 | -450° to 550° | 6" | MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 0000 |
| 3/8" | 14 | 1.9 | 10,000 | 10,800 | -450° to 550° | 6" | MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
| 1/2" | 14 | 1.9 | 10,000 | 10,800 | -450° to 550° | 6" | MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
| 3/4" | 14 | 1.9 | 10,000 | 10,800 | -450° to 550° | 6" | MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
| 1" | 14 | 1.9 | 10,000 | 10,800 | -450° to 550° | 6" | MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
| 1 1/2" | 14 | 1.9 | 10,000 | 10,800 | -450° to 550° | 6" | MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
| 2" | 14 | 1.9 | 10,000 | 10,800 | -450° to 550° | 6" | MIL-T-27730 FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 UL Listed MIL-A-A-58092 Type II | White | 0000000 | 00000 | 00000 |
Choose-a-Color High-Density Thread Sealant Tape
Use color to identify water, gas, and chemical connections. This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.
Green tape is often used for oxygen.
Orange and yellow tape is commonly used to indicate fuel and gas.
Red tape is often used for water.
Max. Pressure, psi | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg., yd. | Density, g/cm3 | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Specifications Met | Choose a Color | 1-11 | 12-Up | |
PTFE | |||||||||||
0.0032" Thick. | |||||||||||
| 1/4" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1/2" | MIL-A-A-58092 Type II MIL-T-27730 UL Listed | 00000000 | 00000 | 00000 | |
| 3/8" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 3/4" | MIL-A-A-58092 Type II MIL-T-27730 UL Listed | 00000000 | 0000 | 0000 | |
| 1/2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1" | MIL-A-A-58092 Type II MIL-T-27730 UL Listed | 00000000 | 0000 | 0000 | |
| 3/4" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 1 1/2" | MIL-A-A-58092 Type II MIL-T-27730 UL Listed | 00000000 | 0000 | 0000 | |
| 1" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 2" | MIL-A-A-58092 Type II MIL-T-27730 UL Listed | 00000000 | 00000 | 0000 | |
| 1 1/2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 3" | MIL-A-A-58092 Type II MIL-T-27730 UL Listed | 00000000 | 00000 | 00000 | |
| 2" | 14 | 1.2 | 10,000 | 10,000 | -450° to 550° | 4" | MIL-A-A-58092 Type II MIL-T-27730 UL Listed | 00000000 | 00000 | 00000 | |
Thread Sealant Tape
Made of PTFE, this tape has a slippery surface that keeps threads from binding to make parts easy to assemble.
Max. Pressure, psi | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg., yd. | Density, g/cm3 | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Specifications Met | Color | 1-11 | 12-Up | |
PTFE | |||||||||||
0.0032" Thick. | |||||||||||
| 1/4" | 14 | 0.7 | 10,000 | 10,000 | -450° to 550° | 1/2" | FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed | White | 0000000 | 00000 | 00000 |
| 3/8" | 14 | 0.7 | 10,000 | 10,000 | -450° to 550° | 3/4" | FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed | White | 0000000 | 0000 | 0000 |
| 1/2" | 14 | 0.7 | 10,000 | 10,000 | -450° to 550° | 1" | FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed | White | 0000000 | 0000 | 0000 |
| 3/4" | 14 | 0.7 | 10,000 | 10,000 | -450° to 550° | 1 1/2" | FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed | White | 0000000 | 0000 | 0000 |
| 1" | 14 | 0.7 | 10,000 | 10,000 | -450° to 550° | 2" | FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed | White | 0000000 | 0000 | 0000 |
| 1 1/2" | 14 | 0.7 | 10,000 | 10,000 | -450° to 550° | 3" | FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed | White | 0000000 | 0000 | 0000 |
| 2" | 14 | 0.7 | 10,000 | 10,000 | -450° to 550° | 4" | FDA Compliant 21 CFR 177.1550, MIL-T-27730, UL Listed | White | 0000000 | 00000 | 00000 |
Thread Sealant Tape for Stainless Steel Threads
This tape is thicker to prevent seizing and galling associated with stainless steel threaded connections. It’s also good for use with other metals. This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.
Max. Pressure, psi | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg., ft. | Density, g/cm3 | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Specifications Met | Color | 1-11 | 12-Up | |
PTFE | |||||||||||
0.0043" Thick. | |||||||||||
| 1/4" | 43 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 00000 | 00000 |
| 3/8" | 43 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 0000 | 0000 |
| 1/2" | 21 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 0000 | 0000 |
| 1/2" | 50 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 00000 | 00000 |
| 3/4" | 21 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 0000 | 0000 |
| 1" | 21 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 0000 | 0000 |
| 1" | 43 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 00000 | 00000 |
| 1 1/2" | 43 | 1.05 | 10,000 | 2,000 | -450° to 550° | 1 1/2" | MIL-T-27730 UL Listed | Gray | 0000000 | 00000 | 00000 |
Thread Sealant Tape for Copper, Brass, and Bronze Threads
With 10% copper flake content, this tape matches the color of copper, brass, and bronze threads for a seamless finish. It’s made of PTFE, so it has a slippery surface to keep threads from binding. This tape has a higher density than standard tape for a better seal between threads.