About Sealant Flexibility
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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.
Container | ||||||||||||||
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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 | For Joining | Specifications Met | Clarity | Choose a Color | Each | |
Dow Corning Silicone | ||||||||||||||
732 | 3 | Tube | 20 min. | 24 hrs. | 600% | -25% to 25% | Soft (Durometer 25A) | -75° to 350° | Metal Metal to Plastic Metal to Glass Plastic Glass | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, NSF/ANSI 61, UL Listed | __ | 000000 | 00000 | |
732 | 4.7 | Tube | 20 min. | 24 hrs. | 600% | -25% to 25% | Soft (Durometer 25A) | -75° to 350° | Metal Metal to Plastic Metal to Glass Plastic Glass | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, NSF/ANSI 61, UL Listed | __ | 00000000 | 00000 | |
732 | 10.1 | Cartridge | 20 min. | 24 hrs. | 600% | -25% to 25% | Soft (Durometer 25A) | -75° to 350° | Metal Metal to Plastic Metal to Glass Plastic Glass | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, NSF/ANSI 61, UL Listed | __ | 000000 | 00000 | |
736 | 3 | Tube | 20 min. | 24 hrs. | 600% | -25% to 25% | Soft (Durometer 26A) | -85° to 500° | Metal | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Listed | Opaque | Red | 00000000 | 00000 |
736 | 10.1 | Cartridge | 20 min. | 24 hrs. | 600% | -25% to 25% | Soft (Durometer 26A) | -85° to 500° | Metal | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Listed | Opaque | Red | 00000000 | 00000 |
Momentive/GE Silicone | ||||||||||||||
RTV102 | 2.8 | Tube | 15 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 30A) | -75° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | White | 00000000 | 00000 |
RTV102 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 30A) | -75° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | White | 00000000 | 00000 |
RTV103 | 2.8 | Tube | 15 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 30A) | -75° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | Black | 00000000 | 00000 |
RTV103 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 30A) | -75° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | Black | 00000000 | 00000 |
RTV108 | 2.8 | Tube | 15 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 30A) | -75° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Semi-Clear | White | 00000000 | 00000 |
RTV108 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 30A) | -75° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Semi-Clear | White | 00000000 | 00000 |
RTV109 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 30A) | -75° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | Aluminum | 00000000 | 00000 |
Rutland 500ºF RTV High Heat Silicone | ||||||||||||||
76 | 2.7 | Tube | 10 min. | 24 hrs. | 500% | Not Rated | Soft (Durometer 25A) | -70° to 500° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Rubber Rubber to Glass Glass Masonry Wood | ASTM C920 Type S Grade NS Class 25, FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51 | Opaque | Black | 00000000 | 00000 |
76 | 10.3 | Cartridge | 10 min. | 24 hrs. | 500% | Not Rated | Soft (Durometer 25A) | -70° to 500° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Rubber Rubber to Glass Glass Masonry Wood | ASTM C920 Type S Grade NS Class 25, FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51 | __ | 00000000 | 00000 |
PR-1200 Primer for Dow Corning 700, 732, 733, 736, Loctite®, 76435T21, 76435T11, and 7545A611 Sealants (10.9 fl. oz. Bottle) | 0000000 | Each | 000000 |
Silicone Sealants with Material Certification


These sealants include a material certificate with traceable lot number, test report, and product shelf life. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).
Elongation indicates flexibility—the higher the value is, the more a sealant can stretch. These sealants are best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.
Container | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Tensile Strength, psi | Hardness | Temp. Range, °F | Specifications Met | For Joining | Clarity | Color | Each | |
Momentive/GE Silicone | ||||||||||||||
RTV102 | 2.8 | Tube | 15 min. | 24 hrs. | 450% | 400 | Soft (Durometer 30A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Recognized Component | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Opaque | White | 00000000 | 000000 |
RTV102 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | 400 | Soft (Durometer 30A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Recognized Component | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Opaque | White | 00000000 | 00000 |
RTV103 | 2.8 | Tube | 15 min. | 24 hrs. | 450% | 400 | Soft (Durometer 30A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Recognized Component | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Opaque | Black | 00000000 | 00000 |
RTV103 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | 400 | Soft (Durometer 30A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Recognized Component | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Opaque | Black | 00000000 | 00000 |
RTV108 | 2.8 | Tube | 15 min. | 24 hrs. | 450% | 400 | Soft (Durometer 30A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Recognized Component | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Semi-Clear | White | 00000000 | 00000 |
RTV108 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | 400 | Soft (Durometer 30A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Recognized Component | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Semi-Clear | White | 00000000 | 00000 |
RTV109 | 10.1 | Cartridge | 15 min. | 24 hrs. | 450% | 400 | Soft (Durometer 30A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type I, NSF/ANSI 51, UL Recognized Component | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood | Opaque | Aluminum | 00000000 | 00000 |
Caulk

Caulk is non-sagging, so it 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 a sealant can sustain. Caulk is best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.
Container | Each | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1-11 | 12-Up | |
Silicone | ||||||||||||||
10.1 | Cartridge | 30 min. | 24 hrs. | 475% | -25% to 25% | 145 | Soft Durometer 23A | -60° to 400° | ASTM C920 Class 25; FDA Compliant 21 CFR 177.2600; Fed. Spec. TT-S-001543A; Fed. Spec. TT-S-00230C Type II Class A; MIL-A-46106 Group I Type I | Metal | White | 0000000 | 000000 | 000000 |