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Reaches Full Strength Reaches Full Strength |
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Container Type Container Type |
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For Joining For Joining |
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For Use On For Use On |
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Primer Required For Use On Primer Required For Use On |
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For Use Outdoors For Use Outdoors |
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Manufacturer Manufacturer |
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Begins to Harden Begins to Harden |
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Minimum Temperature Minimum Temperature |
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Hardness Rating Hardness Rating |
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Hardness Hardness |
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Maximum Temperature Maximum Temperature |
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Paintable Paintable |
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Application Application |
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Container Size Container Size |
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Formulation Formulation |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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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Elongation Elongation |
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Manufacturer Model Number ManufacturerModel Number | Show |
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Manufacturer Model Number ManufacturerModel Number | Hide |
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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.
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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 | |||||||||||||
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 | 000000 |
PR-1200 Primer for Dow Corning 700, 732, 733, 736, Loctite®, 76435T21, 76435T11, and 7545A611 Sealants (16-oz. Bottle) | 0000000 | Each | 000000 |