Color Color |
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![]() | Gray |
For Joining For Joining |
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Container Type Container Type |
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![]() | Tube |
Maximum Temperature Maximum Temperature |
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Tensile Strength Tensile Strength |
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Manufacturer Model Number ManufacturerModel Number | Show |
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Manufacturer Model Number ManufacturerModel Number | Hide |
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Manufacturer Manufacturer |
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For Use On For Use On |
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For Use Outdoors For Use Outdoors |
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Begins to Harden Begins to Harden |
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Hardness Hardness |
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Application Application |
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Formulation Formulation |
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Type Type |
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Reaches Full Strength Reaches Full Strength |
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Minimum Temperature Minimum Temperature |
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Hardness Rating Hardness Rating |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Elongation Elongation |
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Paintable Paintable |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Mixing Required Mixing Required |
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Clarity Clarity |
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About Sealant Flexibility
More
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 |
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 |