About Sealant Flexibility
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Non-Hardening Caulk
Also known as thumb-grade caulk, this forms a non-hardening, moisture-resistant seal that remains pliable.
Butyl rubber has a sticky, gummy consistency.
Butyl mastic has a clay-like consistency.

Black | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Wd. | Thick. | Lg., ft. | Tensile Strength | Hardness | Temp. Range, °F | For Joining | Number of Pieces | Each | |
08578 | 5/16" | 5/16" | 1 | Not Rated | Not Rated | -20° to 200° | Metal Plastic Asphalt Composites Glass Masonry Wood | 60 | 0000000 | 000000 |
5354 | 1/4" | 1/8" | 50 | Not Rated | Medium Hard (Durometer 60A) | -50° to 190° | Metal Metal to Plastic Metal to Glass Plastic Plastic to Glass Glass Wood Wood to Glass | 1 | 0000000 | 00000 |
5354 | 1/4" | 1/4" | 25 | Not Rated | Medium Hard (Durometer 60A) | -50° to 190° | Metal Metal to Plastic Metal to Glass Plastic Plastic to Glass Glass Wood Wood to Glass | 1 | 00000000 | 00000 |
5354 | 3/8" | 1/8" | 50 | Not Rated | Medium Hard (Durometer 60A) | -50° to 190° | Metal Metal to Plastic Metal to Glass Plastic Plastic to Glass Glass Wood Wood to Glass | 1 | 0000000 | 00000 |
5354 | 3/4" | 1/8" | 50 | Not Rated | Medium Hard (Durometer 60A) | -50° to 190° | Metal Metal to Plastic Metal to Glass Plastic Plastic to Glass Glass Wood Wood to Glass | 1 | 0000000 | 000000 |

White | ||||||||
---|---|---|---|---|---|---|---|---|
Dia. | Lg., ft. | Tensile Strength | Hardness | Temp. Range, °F | For Joining | Number of Pieces | Each | |
3/8" | 25 | Not Rated | Soft (Durometer 20A) | -20° to 350° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood Wood to Glass | 3 | 0000000 | 000000 |

Dia. | Lg., ft. | Tensile Strength | Hardness | Temp. Range, °F | For Joining | Number of Pieces | Each | |
Brown | ||||||||
---|---|---|---|---|---|---|---|---|
1/8" | 45 | Not Rated | Not Rated | -30° to 150° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | 8 | 00000000 | 00000 |
1/8" | 90 | Not Rated | Not Rated | -30° to 150° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | 8 | 00000000 | 0000 |
Gray | ||||||||
1/8" | 30 | Not Rated | Not Rated | -30° to 150° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | 8 | 00000000 | 0000 |
1/8" | 45 | Not Rated | Not Rated | -30° to 150° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | 8 | 0000000 | 0000 |
1/8" | 90 | Not Rated | Not Rated | -30° to 150° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | 8 | 0000000 | 0000 |
Non-Hardening Thread Sealants with PTFE


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.
Gasoila sealants are designed specifically to resist gasoline and fuel oils, making them best for motors, nozzles, pump assemblies, and fuel lines.
Sealants that meet NSF/ANSI 61 adhere to safety standards for drinking water systems.
VOC-free sealants won’t harm the environment and comply with LEED Green Building standards. VOC stands for volatile organic compound.
VOC regulations restrict sales of sealants that cannot be sold to the listed jurisdictions/areas.
Container | Max. Pressure, psi | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | Specifications Met | Color | Cannot Be Sold To | Features | Each | |
Low Locking Strength | |||||||||||||
Loctite® Sealants | |||||||||||||
5113 | 16 | Brush-Top Can | Not Rated | Not Rated | -65° to 300° | 2" | Paste | __ | White | Los Angeles Area | __ | 0000000 | 000000 |
Gasoila Sealants | |||||||||||||
GE04 | 4 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 2" | Paste | UL Classified | Green | __ | __ | 00000000 | 00000 |
GE08 | 8 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 2" | Paste | UL Classified | Green | __ | __ | 00000000 | 00000 |
GE16 | 16 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 2" | Paste | UL Classified | Green | __ | __ | 00000000 | 00000 |
Vibra-Tite Sealants | |||||||||||||
480 | 4 | Brush-Top Can | 10,000 | 2,000 | -65° to 500° | 2" | Paste | __ | White | __ | __ | 00000000 | 00000 |
480 | 8 | Brush-Top Can | 10,000 | 2,000 | -65° to 500° | 2" | Paste | __ | White | __ | __ | 00000000 | 00000 |
480 | 16 | Brush-Top Can | 10,000 | 2,000 | -65° to 500° | 2" | Paste | __ | White | __ | __ | 00000000 | 00000 |
486 | 4 | Brush-Top Can | 150 | 100 | -55° to 300° | 2" | Paste | __ | White | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT | __ | 00000000 | 00000 |
486 | 8 | Brush-Top Can | 150 | 100 | -55° to 300° | 2" | Paste | __ | White | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT | __ | 00000000 | 00000 |
486 | 16 | Brush-Top Can | 150 | 100 | -55° to 300° | 2" | Paste | __ | White | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT | __ | 00000000 | 00000 |
Slic-Tite Sealants | |||||||||||||
__ | 4 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | NSF/ANSI 61, UL Listed | White | __ | __ | 0000000 | 00000 |
__ | 8 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | NSF/ANSI 61, UL Listed | White | __ | __ | 0000000 | 00000 |
__ | 16 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | NSF/ANSI 61, UL Listed | White | __ | __ | 0000000 | 00000 |
__ | 32 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | NSF/ANSI 61, UL Listed | White | __ | __ | 0000000 | 00000 |
Sealants | |||||||||||||
__ | 0.125 | Tube | 10,000 | 3,000 | -100° to 600° | 2" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | __ | __ | 00000000 | 0000 |
__ | 2 | Tube | 10,000 | 3,000 | -100° to 600° | 3" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | __ | __ | 0000000 | 0000 |
__ | 4 | Brush-Top Can | 5,000 | 1,500 | -50° to 500° | 2" | Paste | NSF/ANSI 61 | Blue | __ | __ | 00000000 | 00000 |
__ | 4 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 3" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | __ | __ | 0000000 | 00000 |
__ | 4 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | C-UL Classified, NSF/ANSI 61, UL Classified | Off-White | __ | VOC Free | 00000000 | 00000 |
__ | 8 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 3" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | __ | __ | 0000000 | 00000 |
__ | 8 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | C-UL Classified, NSF/ANSI 61, UL Classified | Off-White | __ | VOC Free | 00000000 | 00000 |
__ | 16 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 2" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | __ | __ | 00000000 | 00000 |
__ | 16 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | C-UL Classified, NSF/ANSI 61, UL Classified | Off-White | __ | VOC Free | 00000000 | 00000 |
__ | 32 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 2" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | __ | __ | 00000000 | 00000 |
__ | 32 | Brush-Top Can | 10,000 | 3,000 | -50° to 500° | 2" | Paste | C-UL Classified, NSF/ANSI 61, UL Classified | Off-White | __ | VOC Free | 00000000 | 00000 |
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.
To adhere to safety standards for drinking water systems, use sealants that meet NSF/ANSI 61.
Sealants that cannot be sold to the listed regions are restricted due to local VOC (Volatile Organic Compounds) regulations.
Container | Max. Pressure, psi | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size | Type | For Fluids | For Gases | Minimum Temp., °F | Maximum Temp., °F | For Max. Thread Dia. | Consistency | Specifications Met | Color | Cannot Be Sold To | Each | |
Low Locking Strength | |||||||||||||
Loctite® Sealants | |||||||||||||
5117 | 16 fl. oz. | Brush-Top Can | 10,000 | 10,000 | -65° | 400° | 2" | Thick Liquid | __ | Black | __ | 0000000 | 000000 |
5438 | 16 fl. oz. | Brush-Top Can | 10,000 | 10,000 | -65° | 300° | 2" | Paste | __ | White | __ | 0000000 | 00000 |
Vibra-Tite Sealants | |||||||||||||
481 | 2.4 fl. oz. | Tube | 150 | 100 | -65° | 500° | 2" | Paste | __ | Off-White | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, NY, OH, PA, RI, UT, Northern VA | 00000000 | 00000 |
Key-Tite Sealants | |||||||||||||
__ | 32 fl. oz. | Can | 15,000 | 15,000 | -50° | 450° | 4" | Thick Liquid | __ | Green | __ | 000000 | 00000 |
__ | 1 gal. | Can | 15,000 | 15,000 | -50° | 450° | 4" | Thick Liquid | __ | Green | __ | 000000 | 000000 |
Sealants | |||||||||||||
__ | 2 fl. oz. | Brush-Top Bottle | 10,000 | 300 | -65° | 450° | 2" | Paste | MIL-S-15204, UL Recognized Component | Gray | __ | 0000000 | 00000 |
__ | 4 fl. oz. | Brush-Top Can | 5,000 | 2,600 | Not Rated | 400° | 6" | Paste | __ | Gray | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, NY, OH, PA, RI, UT, Northern VA | 00000000 | 00000 |
__ | 4 fl. oz. | Brush-Top Can | 6,000 | 3,000 | -100° | 600° | 2" | Paste | NSF/ANSI 61 | Blue | __ | 00000000 | 00000 |
__ | 8 fl. oz. | Brush-Top Can | 6,000 | 3,000 | -100° | 600° | 2" | Paste | NSF/ANSI 61 | Blue | __ | 000000 | 00000 |
__ | 8 fl. oz. | Brush-Top Can | 10,000 | 300 | -65° | 450° | 2" | Paste | MIL-S-15204, UL Recognized Component | Gray | __ | 0000000 | 00000 |
__ | 16 fl. oz. | Brush-Top Can | 6,000 | 3,000 | -100° | 600° | 2" | Paste | NSF/ANSI 61 | Blue | __ | 00000000 | 00000 |
__ | 32 fl. oz. | Brush-Top Can | 6,000 | 3,000 | -100° | 600° | 2" | Paste | NSF/ANSI 61 | Blue | __ | 00000000 | 00000 |
Drip-Free Non-Hardening Thread Sealants with PTFE

Apply these thread sealant sticks without a mess. They contain PTFE, which 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. They meet NSF/ANSI 61 for use with drinking water.
Container | Max. Pressure, psi | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Net Weight, oz. | Type | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | Specifications Met | Environment | Color | Each | |
Low Locking Strength | |||||||||||
Slic-Tite Sealants | |||||||||||
1.2 | Stick | 5,000 | 500 | -50° to 350° | 2" | Semi-Solid | NSF/ANSI 61 | Food Industry | White | 0000000 | 000000 |
Reusable Non-Hardening Thread Sealants for Fine Threads

Formulated to flow into small spaces, use these sealants between fine threads. Threads coated with these sealants can be installed multiple times without recoating. They have low locking strength, so they prevent threads from loosening due to vibration and can be adjusted without tools. They meet NSF/ANSI 61 for use with drinking water.
Reusable Non-Hardening Thread Sealants for Coarse Threads

Much thicker than sealants for fine threads, these sealants bridge the gaps between coarse threads. Threads coated with these sealants can be installed multiple times without recoating. They have low locking strength, so they prevent threads from loosening due to vibration and can be adjusted without tools. They meet NSF/ANSI 61 for use with drinking water.
Drip-Free Thread Sealants with PTFE

Apply this thread sealant stick without a mess. It contains PTFE, which provides a slippery surface that keeps threads from binding. Since the sealant is anaerobic, it doesn’t begin to harden until coated surfaces are threaded together, blocking exposure to air. It has low locking strength, so it prevents threads from loosening due to vibration and can be adjusted without tools. It meets NSF/ANSI 61 for use with drinking water.
Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ORDER HISTORY after your order ships.
Container | Max. Pressure, psi | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Net Weight, oz. | Type | Begins to Harden | Reaches Full Strength | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | Specifications Met | Color | Each | |
Low Locking Strength | |||||||||||||
Loctite® Sealants | |||||||||||||
561 | 0.7 | Stick | 5 min. | 72 hrs. | 10,000 | 10,000 | -65° to 300° | 3 1/8" | Semi-Solid | NSF/ANSI 61 | White | 0000000 | 000000 |
Non-Hardening High-Temperature 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. They have low locking strength, so they can be adjusted without tools.
Container | Max. Pressue, psi | ||||||||
---|---|---|---|---|---|---|---|---|---|
Net Weight, lbs. | Type | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | Color | Each | |
Low Locking Strength | |||||||||
Key Graphite Sealants | |||||||||
0.625 | Brush-Top Can | 15,000 | 15,000 | -30° to 750° | 4" | Paste | Black | 000000 | 000000 |
1 | Can | 15,000 | 15,000 | -30° to 750° | 4" | Paste | Black | 000000 | 00000 |
2.75 | Can | 15,000 | 15,000 | -30° to 750° | 4" | Paste | Black | 000000 | 00000 |
10 | Can | 15,000 | 15,000 | -30° to 750° | 4" | Paste | Black | 000000 | 000000 |