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About Sealant Flexibility
More
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.
When Dow Corning 700 requires a primer, for best results use PR-1200 on metal and PR-1205 on plastic.
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 | Choose a Color | Each | |
Dow Corning Silicone | |||||||||||||
| 700 | 10.1 | Cartridge | 15 min. | 24 hrs. | 575% | -25% to 25% | Soft (Durometer 20A) | -75° to 350° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass | FDA Compliant 21 CFR 177.2600, NSF/ANSI 51, UL Recognized Component | 000000 | 000000 | |
Noncorrosive Silicone Sealants
Also known as neutral-cure sealants, these won't discolor copper, brass, and concrete. 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 California exceed local regulatory limits on VOCs (volatile organic compounds).
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 | Choose a Color | Each | |
Dow Corning Silicone | ||||||||||||
| 739 | 10.1 | Cartridge | 5 min. | 24 hrs. | 640% | -25% to 25% | Soft (Durometer 37A) | -65° to 300° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass | 0000000 | 000000 | |
| 832 | 10.1 | Cartridge | 50 min. | 24 hrs. | 420% | -25% to 25% | Soft (Durometer 35A) | -65° to 300° | Metal Metal to Plastic Metal to Glass Plastic Plastic to Glass Glass Masonry | 0000000 | 00000 | |
| Primer for Dow Corning 737 and 739 Sealants (16 fl. oz. Bottle) | 0000000 | Each | 000000 |
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.
Black | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Wd. | Thick. | Lg., ft. | Tensile Strength | Hardness | Temp. Range, °F | For Joining | Number of Pieces | Each | |
| 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 | 000000 |
| 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 |