About Sealant Flexibility
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UV-Resistant Glass Sealants
These sealants don't degrade in sunlight. Also known as glazing compounds, use these sealants to install glass in framing. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, these sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility. For joints between dissimilar materials and in environments with wide temperature fluctuation, choose a sealant with a higher elongation or joint compression/expansion tolerance.
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| Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | Specifications Met | For Joining | Choose a Color | Each | |
Dow Corning Silicone | |||||||||||||
| 791 | 10.3 | Cartridge | 15 min. | 14 days | Not Rated | -50% to 50% | Soft (Durometer 25A) | -40° to 300° | ASTM C920 Type S Grade NS Class 50 | Metal Metal to Glass | 0000000 | 000000 | |
| 999A | 10.3 | Cartridge | 10 min. | 7 days | Not Rated | -25% to 25% | Soft (Durometer 25A) | -75° to 350° | __ | Metal Metal to Glass | 0000000 | 0000 | |
Sika Sikaflex Silicone | |||||||||||||
| 295 | 10.1 | Cartridge | 60 min. | 72 hrs. | 700% | -50% to 50% | Soft (Durometer 35A) | -40° to 190° | __ | Plastic Plastic to Glass Rubber Rubber to Glass | 000000 | 00000 | |
Silicone | |||||||||||||
| __ | 10.1 | Cartridge | 30 min. | 24 hrs. | 475% | -25% to 25% | Soft (Durometer 20A) | -75° to 400° | FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.2600, Fed. Spec. TT-S-001543A Class A, Fed. Spec. TT-S-00230C Type II Class A, NSF/ANSI 51 | Metal Metal to Glass Plastic Plastic to Glass Rubber Rubber to Glass Composites Composites to Glass Glass Wood Wood to Glass | 0000000 | 0000 | |
Glass Sealants
Also known as glazing compounds, use these sealants to install glass in aluminum, steel, and wood framing. They’re non-sagging, so they won't drip from vertical and overhead surfaces. These sealants are good for use between dissimilar materials and in environments with wide temperature fluctuation. They must be painted after hardening to stand up to UV light. For sealants that require primer for use on wood, use any oil-based wood primer.
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| Size | Type | Begins to Harden | Reaches Full Strength | Tensile Strength  | Hardness | Application Temp. Range, °F | Temp. Range, °F | For Joining | Primer Required For Use On | Color | Each | |
Calcium Carbonate | ||||||||||||
| 10.1 fl. oz. | Cartridge | 6 hrs. | 72 hrs. | Not Rated | Medium Hard (Durometer 60A) | 40° to 90° | 0° to 180° | Metal Metal to Glass Glass Wood Wood to Glass | __ | White | 0000000 | 00000 |
| 16 fl. oz. | Can | 7 days | 4 mo. | Not Rated | Not Rated | 40° to 90° | -20° to 160° | Metal Metal to Glass Glass Wood Wood to Glass | Wood | White | 0000000 | 00000 |
| 32 fl. oz. | Can | 48 hrs. | 21 days | Not Rated | Not Rated | 40° to 90° | 0° to 180° | Metal Metal to Glass Glass Wood Wood to Glass | __ | White | 0000000 | 00000 |
| 1 gal. | Can | 7 days | 4 mo. | Not Rated | Not Rated | 40° to 90° | -20° to 160° | Metal Metal to Glass Glass Wood Wood to Glass | Wood | White | 0000000 | 00000 |
| 5 gal. | Pail | 48 hrs. | __ | Not Rated | Not Rated | 40° to 110° | -10° to 120° | Metal Metal to Glass Glass Wood Wood to Glass | __ | White | 0000000 | 000000 |
Glass Sealing Rope
Press this pliable rope into place to hold glass in window frames and seal leaks. It’s also known as glazing compound. The rope is non-sagging, so it won't drip from vertical and overhead surfaces. It’s good for use between dissimilar materials and in environments with wide temperature fluctuation. Remove the peel-off liner to install.
| Dia. | Lg., ft. | Tensile Strength, psi | Hardness | Application Temp. Range, °F | Temp. Range, °F | For Joining | Color | Each | |
Butyl Rubber | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4" | 20 | 16 | Soft (Durometer 15A) | -5° to 120° | -40° to 180° | Metal Metal to Glass Glass Wood Wood to Glass | Gray | 0000000 | 000000 |
Fire-Rated Glass Sealing Tape
Seal glass windows in metal and wood fire-rated doors. Also known as glazing tape, it has an adhesive back with a peel-off liner.
Fire Safety | |||||||||||
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| Rating, min. | Standard | Wd. | Lg., ft. | Tensile Strength, psi | Hardness | Application Temp. Range, °F | Max. Temp., °F | For Joining | Color | Each | |
Aluminum | |||||||||||
3/64" Thick. | |||||||||||
| 45 | UL 10C | 7/16" | 8 | 230 | Not Rated | 65° to 80° | 1800° | Metal Metal to Glass Glass Wood | White | 0000000 | 000000 |
| 45 | UL 10C | 7/16" | 14 | 230 | Not Rated | 65° to 80° | 1800° | Metal Metal to Glass Glass Wood | White | 0000000 | 00000 |
5/64" Thick. | |||||||||||
| 90 | UL 10C | 7/16" | 16 | 230 | Not Rated | 65° to 80° | 1800° | Metal Metal to Glass Glass | White | 000000000 | 00000 |
Impact-Resistant Structural Glass Sealants
Repair equipment and vehicle windows with these sealants that are rated to withstand impact within three hours of application. They’re non-sagging, so they won't drip from vertical and overhead surfaces. These sealants are good for use between dissimilar materials and in environments with wide temperature fluctuation. They’re crash tested and meet Federal Motor Vehicle Safety Standard 212 for windshield mounting.
Elongation indicates flexibility—the higher the value is, the more joint movement a sealant can sustain.
A primer is required. For best results use P591 for composites, glass, and fiberglass and P592 for aluminum, steel, and stainless steel.
Container | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Tensile Strength, psi | Hardness | Application Temp. Range, °F | Temp. Range, °F | For Joining | Color | Each | |
3M Polyurethane | |||||||||||||
| 590 | 10.5 | Cartridge | 40 min. | 24 hrs. | 700% | 1,200 | Medium Hard (Durometer 60A) | 40° to 95° | -40° to 200° | Metal Metal to Glass Composites Composites to Glass Glass | Black | 0000000 | 000000 |
| 590 | 20.3 | Sausage Pack | 40 min. | 24 hrs. | 700% | 1,200 | Medium Hard (Durometer 60A) | 40° to 95° | -40° to 200° | Metal Metal to Glass Composites Composites to Glass Glass | Black | 0000000 | 00000 |
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 |
Brown | Gray | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Lg., ft. | Tensile Strength | Hardness | Temp. Range, °F | For Joining | Number of Pieces | Each | Each | ||
| 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 | 000000 | 00 | 00000000 | 00000 |
| 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 | 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 | 00000000 | 0000 | 0000000 | 0000 |
Caulking Tape
Press this adhesive-backed plastic tape into place for an immediate light-duty seal. It has a score line for easy installation in a corner.
| Wd. | Thick. | Lg., ft. | Reaches Full Strength | Tensile Strength | Hardness | Temp. Range, °F | For Joining | Color | Each | |
PET Plastic with Butyl Rubber Adhesive | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 7/8" | 1/4" | 11 | 12 hrs. | Not Rated | Not Rated | 55° to 80° | Metal, Plastic, Rubber, Composites, Glass, Masonry, Wood | White | 0000000 | 00000 |