About Sealant Flexibility
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About Structural Adhesives
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Conductive Glue-on-a-Roll
Attach EMI/RFI shields and gaskets to electronics housings—these rolls are loaded with conductive fibers. Also known as adhesive transfer tape, they have a thin film of pressure-sensitive glue on a peel-away liner. Unlike screws, they won’t leave gaps for EMI to get in. They’re also more conformable than tape with adhesive on both sides.
Silicone Sealants
Made from silicone, these sealants are RTV (room-temperature vulcanizing). They’re non-sagging, so they won't drip from vertical and overhead surfaces.
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. Sealants that are good for joining dissimilar materials also work well in environments with wide temperature fluctuation.
Sealants that cannot be sold outside the United States are restricted due to chemical regulations and/or product labeling requirements.
Container | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net Weight, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | For Joining | Specifications Met | Clarity | Color | Cannot Be Sold To | Each | |
Silicone | ||||||||||||||
| 6.5 | Nozzle-Top Can | 10 min. | 24 hrs. | 400% | -25% to 25% | Soft (Durometer 25A) | -70° to 400° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | ASTM C920 Type S Grade NS Class 25, FDA Compliant 21 CFR 177.2600, Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I, NSF/ANSI 51 | Opaque | White | Outside United States | 00000000 | 000000 |
| 6.5 | Nozzle-Top Can | 20 min. | 24 hrs. | 560% | -25% to 25% | Soft (Durometer 23A) | -80° to 500° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I | Opaque | Red | Outside United States | 00000000 | 00000 |
Mildew-Resistant Silicone Sealants
Resistant to mold and mildew, these sealants are well suited to high-humidity environments. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. Sealants that are good for joining dissimilar materials also work well in environments with wide temperature fluctuation.
Silicone sealants that cannot be sold to Canada are restricted due to product labeling requirements.
Container | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | For Joining | Specifications Met | Color | Clarity | Cannot Be Sold To | Each | |
3M Silicone | |||||||||||||||
| 8017 | 3 | Tube | 10 min. | 24 hrs. | 350% | Not Rated | Soft (Durometer 20A) | -40° to 190° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Wood | ASTM D412 | White | Clear | __ | 00000000 | 000000 |
| 8019 | 3 | Tube | 10 min. | 24 hrs. | 350% | Not Rated | Soft (Durometer 20A) | -40° to 190° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Wood | ASTM D412 | Clear | Clear | __ | 00000000 | 00000 |
| 8027 | 10.3 | Cartridge | 10 min. | 24 hrs. | 350% | Not Rated | Soft (Durometer 20A) | -40° to 190° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Wood | ASTM D412 | White | Clear | __ | 00000000 | 00000 |
| 8029 | 10.3 | Cartridge | 10 min. | 24 hrs. | 350% | Not Rated | Soft (Durometer 20A) | -40° to 190° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Wood | ASTM D412 | Clear | Clear | __ | 00000000 | 00000 |
Silicone | |||||||||||||||
| __ | 10.1 | Cartridge | 20 min. | 24 hrs. | 430% | -25% to 25% | __ | -80° 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 | ASTM C920 Type S Grade NS Class 25, Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C | Clear | Clear | Canada | 000000000 | 00000 |
Low-Outgassing Silicone Sealants
Tested to meet ASTM E595, a standard used by NASA, these sealants fill joints and seams while releasing almost no volatile emissions that could damage sensitive electronics, even in a vacuum. Made of silicone, they’re RTV (room-temperature vulcanizing), so they’ll fully harden at room temperature.
Elongation indicates flexibility—the higher the value is, the more a sealant can stretch.
Sealants that begin to harden in 26 min. are less likely to trap contaminants than those that take longer to harden.
Container | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Tensile Strength, psi  | Hardness | Temp. Range, °F | Specifications Met | For Joining | Color | Each | |
| 5 | Tube | 26 min. | 3 days | 610% | Not Rated | 925 | Durometer 41A (Medium Soft) | -45° to 390° | ASTM E595 | Metal Plastic Rubber Glass Masonry | Clear | 0000000 | 0000000 |
| 5.8 | Cartridge | 150 min. | 7 days | 420% | -25% to 25% | 600 | Durometer 36A (Medium Soft) | -200° to 500° | ASTM E595 | Metal Plastic Rubber Composites Glass | White | 0000000 | 000000 |
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 | |||||||||||||
Gasoila Sealants | |||||||||||||
| GE04 | 4 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 2" | Paste | UL Classified | Green | __ | __ | 00000000 | 000000 |
| 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 |
Sealants | |||||||||||||
| __ | 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 | -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 |
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 | 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 |
Light-Activated Surface Filler Patches
An easy way to make repairs in the field. Cut patches to size, peel off the backing, and press into place. When exposed to sunlight or a UV lamp, they begin to harden immediately. Patches are waterproof.
| Formulation | Lg. | Wd. | Begins to Harden, sec. | Reaches Full Strength, min. | For Use Outdoors | Temp. Range, °F | Color | Finishing Method | For Use On | Each | |
| Polyester | 6" | 3" | 1 | 50 | Yes | -30° to 365° | Beige | Drill, Painted, Sand, Saw, Tap | Vinyl Plastic, EPDM Rubber, SBR Rubber, Fiberglass, Concrete, Wood, Metal | 0000000 | 000000 |