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About Sealant Flexibility
More
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.
Sealants that cannot be sold to Canada are restricted by product labeling requirements.
Container | ||||||||||||||||
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Mfr. Model No. | Size, fl. oz. | Net Weight, 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 | ||||||||||||||||
__ | __ | 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 | White | Opaque | Canada | 00000000 | 00000 |
__ | 10.1 | __ | Cartridge | 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 | White | Opaque | __ | 00000000 | 00000 |
__ | 10.1 | __ | Cartridge | 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, NSF/ANSI 51 | Clear | Clear | __ | 00000000 | 00000 |
__ | 10.1 | __ | Cartridge | 20 min. | 24 hrs. | 550% | -25% to 25% | Soft (Durometer 25A) | -40° 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, Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C | Red | Opaque | __ | 00000000 | 00000 |
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.
VOC (volatile organic compounds) regulations restrict sales of sealants that cannot be sold to the listed jurisdictions/areas.
Container | Max. Pressure, psi | ||||||||||
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Size, fl. oz. | Type | For Fluids | For Gases | Temp. Range, °F | For Max. Thread Dia. | Consistency | Specifications Met | Color | Cannot Be Sold To | Each | |
Low Locking Strength | |||||||||||
Sealants | |||||||||||
0.125 | Tube | 10,000 | 3,000 | -100° to 600° | 2" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT | 00000000 | 00000 |
16 | Brush-Top Can | 10,000 | 3,000 | -100° to 600° | 2" | Paste | CSA Certified, CSA-US Certified, UL Classified | Blue | CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, Northern VA, NY, OH, PA, RI, UT | 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 |