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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 | Color | Each | |
Momentive/GE Silicone | ||||||||||||||
RTV106 | 2.8 | Tube | 15 min. | 24 hrs. | 400% | -25% to 25% | Soft (Durometer 30A) | -55° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | Red | 00000000 | 000000 |
RTV106 | 5.4 | Cartridge | 15 min. | 24 hrs. | 400% | -25% to 25% | Soft (Durometer 30A) | -55° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | Red | 00000000 | 000000 |
RTV106 | 10.1 | Cartridge | 15 min. | 24 hrs. | 400% | -25% to 25% | Soft (Durometer 30A) | -55° 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 | FDA Compliant 21 CFR 177.2600, MIL-A-46106 Group III Type I, NSF/ANSI 51, UL Recognized Component | Opaque | Red | 00000000 | 00000 |
RTV230 A/B | 13.5 | Syringe | 5 min. | 24 hrs. | 280% | -25% to 25% | Soft (Durometer 36A) | -55° 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 | UL 94 HB | Opaque | White | 00000000 | 000000 |
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, fl. 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 | |||||||||||||
RTV116 | 11.7 | Cartridge | 30 min. | 3 days | 350% | -25% to 25% | 350 | Soft (Durometer 20A) | -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 | 0000000 | 0000000 |
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 | 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) compounds because they don’t need heat or UV light to cure.
Potting compounds that cannot be sold to Canada are restricted by product labeling requirements.
Container | Dry Time | |||||||||||||
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Size, fl. oz. | Type | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Color | Clarity | Cannot Be Sold To | Each | |
Compounds—Soft | ||||||||||||||
3 | Tube | Paste | 15 min. | 24 | 425 | 0.06 | -75° to 400° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Ceramic, Glass | Clear | Clear | Canada | 00000000 | 000000 |