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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 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | For Joining | Specifications Met | Color | Each | |
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 | 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 | 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 | Black | 00000000 | 0000 |
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 | Black | 00000000 | 00000 |
RTV106 | 2.8 | Tube | 15 min. | 24 hrs. | 400% | Not Rated | Soft (Durometer 30A) | -75° 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 | 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 | Red | 00000000 | 00000 |
RTV106 | 10.1 | Cartridge | 15 min. | 24 hrs. | 400% | Not Rated | Soft (Durometer 30A) | -75° 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 | 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 | Red | 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 | 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 | 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 | Aluminum | 00000000 | 00000 |
RTV5818 | 10.1 | Cartridge | 15 min. | 12 hrs. | 500% | -25% to 25% | Soft (Durometer 23A) | -60° 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 | UL Listed | Clear | 00000000 | 00000 |
PR-1200 Primer for Dow Corning 700, 732, 733, 736, Loctite®, 76435T21, 76435T11, and 7545A611 Sealants (16-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, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Tensile Strength, psi | Hardness | Temp. Range, °F | Specifications Met | For Joining | 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 | 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 | 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 | 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 | Black | 00000000 | 00000 |
RTV106 | 2.8 | Tube | 15 min. | 24 hrs. | 400% | 375 | Soft (Durometer 30A) | -75° to 500° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group III 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 | Red | 00000000 | 00000 |
RTV106 | 10.1 | Cartridge | 15 min. | 24 hrs. | 400% | 375 | Soft (Durometer 30A) | -75° to 500° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group III 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 | Red | 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 | 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 | 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 | Aluminum | 00000000 | 00000 |
Self-Leveling Silicone Sealants

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish. 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.
Container | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Tensile Strength, psi | Hardness | Temp. Range, °F | For Joining | Color | Each | |
Momentive/GE Silicone | |||||||||||||
RTV118 | 2.8 | Tube | 20 min. | 24 hrs. | 325% | Not Rated | 325 | Soft (Durometer 25A) | -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 | Clear | 0000000 | 000000 |
Self-Leveling Silicone Sealants with Material Certification

These sealants include a material certificate with traceable lot number, test report, and product shelf life. Thinner than non-sagging sealants, these sealants flow easily into cracks and have a smooth finish. They’re also known as RTV (room-temperature vulcanizing).
Elongation indicates flexibility—the higher the value is, the more a sealant can stretch. These sealants are good for use between dissimilar materials and in environments with wide temperature fluctuation.
Container | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Tensile Strength, psi | Hardness | Temp. Range, °F | Specifications Met | For Joining | Color | Each | |
Momentive/GE Silicone | |||||||||||||
RTV118 | 2.8 | Tube | 20 min. | 24 hrs. | 325% | 325 | Soft (Durometer 25A) | -75° to 400° | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group I Type II, 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 | Clear | 0000000 | 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, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | For Joining | Cannot Be Sold To | Color | Each | |
Momentive/GE Silicone | |||||||||||||
RTV6708 | 10.1 | Cartridge | 25 min. | 24 hrs. | 450% | Not Rated | Soft (Durometer 18A) | -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 | CA | White | 00000000 | 000000 |
Noncorrosive Silicone Sealants with Material Certification

This sealant includes a material certificate with traceable lot number, test report, and product shelf life. Also known as neutral-cure, this sealant won't discolor copper, brass, and concrete. It’s non-sagging, so it won't drip from vertical and overhead surfaces. Made from silicone, this sealant is RTV (room-temperature vulcanizing). It cannot be sold to California because it exceeds local regulatory limits on VOC (volatile organic compounds).
Elongation indicates flexibility—the higher the value is, the more a sealant can stretch. This sealant is good for use between dissimilar materials and in environments with wide temperature fluctuation.
Container | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Tensile Strength, psi | Hardness | Temp. Range, °F | For Joining | Color | Cannot Be Sold To | Each | |
Momentive/GE Silicone | |||||||||||||
RTV6708 | 10.1 | Cartridge | 25 min. | 24 hrs. | 450% | 225 | Soft (Durometer 18A) | -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 | White | CA | 00000000 | 000000 |
Structural Silicone Sealants with Material Certification

These sealants include a material certificate with traceable lot number, test report, and product shelf life. They are structural sealants that combine the mechanical strength of an adhesive with excellent sealing properties and high flexibility. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, these sealants are RTV (room-temperature vulcanizing). They cannot be sold to California due to local regulatory limits on VOC (volatile organic compounds).
Elongation indicates flexibility—the higher the values are, the more sealants can stretch. These sealants are good for use between dissimilar materials and in environments with wide temperature fluctuation.
Container | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Tensile Strength, psi | Hardness | Temp. Range, °F | For Joining | Color | Cannot Be Sold To | Each | |
Momentive/GE Silicone | |||||||||||||
RTV157 | 2.8 | Tube | 30 min. | 24 hrs. | 825% | 975 | Soft (Durometer 28A) | -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 | Gray | CA | 0000000 | 000000 |
RTV159 | 2.8 | Tube | 30 min. | 24 hrs. | 825% | 1,025 | Soft (Durometer 28A) | -75° to 500° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass | Red | CA | 0000000 | 00000 |
Structural Silicone Sealants

These structural sealants combine the mechanical strength of an adhesive with excellent sealing properties and high flexibility. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, these sealants are RTV (room-temperature vulcanizing). They cannot be sold to California due to local regulatory limits on VOC (volatile organic compounds).
Elongation indicates flexibility—the higher the values are, the more sealants can stretch. These sealants are good for use between dissimilar materials and in environments with wide temperature fluctuation.
Container | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Tensile Strength, psi | Hardness | Temp. Range, °F | For Joining | Color | Cannot Be Sold To | Each | |
Momentive/GE Silicone | |||||||||||||
RTV157 | 2.8 | Tube | 30 min. | 24 hrs. | 825% | 975 | Soft (Durometer 28A) | -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 | Gray | CA | 0000000 | 000000 |
RTV159 | 2.8 | Tube | 30 min. | 24 hrs. | 825% | 1,025 | Soft (Durometer 28A) | -75° to 500° | Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass | Red | CA | 0000000 | 00000 |
Ready-to-Use Silicone Potting Compounds


No mixing required --these potting compounds come ready to apply. Use them to encase electronic assemblies for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They're also known as RTV (room-temperature vulcanizing).
Potting compounds that cannot be sold to California exceed local regulatory limits on VOCs (volatile organic compounds).
Container | Dry Time | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, oz. | Type | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Color | Cannot Be Sold To | Each | |
Momentive/GE Compounds—Soft | ||||||||||||||
RTV162 | 2.8 | Tube | Paste | 4 hrs. | 48 | 450 | 0.2 | -75° to 400° | UL Recognized Component, MIL-A-46146 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Rubber, Ceramic, Glass | White | CA | 00000000 | 000000 |
RTV162 | 10.1 | Cartridge | Paste | 4 hrs. | 48 | 450 | 0.2 | -75° to 400° | UL Recognized Component, MIL-A-46146 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Rubber, Ceramic, Glass | White | CA | 00000000 | 00000 |
Two-Part Silicone Potting Compounds
Encase electronic assemblies in a layer of silicone for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They’re also known as RTV (room-temperature vulcanizing).

Dry Time | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Container Size, oz. | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Color | Each | |
Momentive/GE Compounds—Medium Soft | ||||||||||||
RTV11 | 16 | Thick Liquid | 90 min. | 24 | 515 | 0.29 | -65° to 400° | GSA A-A-56023A | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel | White | 00000000 | 0000000 |
Momentive/GE Compounds—Medium Hard | ||||||||||||
RTV60 | 16 | Thick Liquid | 2 hrs. | 24 | 450 | 0.31 | -65° to 500° | __ | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel | Red | 00000000 | 000000 |