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Container Type Container Type |
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Color Color |
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For Joining For Joining |
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For Use On For Use On |
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Manufacturer Manufacturer |
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Clarity Clarity |
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For Use Outdoors For Use Outdoors |
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Maximum Temperature Maximum Temperature |
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Formulation Formulation |
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Begins to Harden Begins to Harden |
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Container Size Container Size |
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Mixing Required Mixing Required |
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Application Application |
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Elongation Elongation |
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Hardness Rating Hardness Rating |
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Hardness Hardness |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Minimum Temperature Minimum Temperature |
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Reaches Full Strength Reaches Full Strength |
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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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Paintable Paintable |
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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 | Color | Each | |
3M Super Silicone | ||||||||||||
8661 | 3 | Tube | 10 min. | 24 hrs. | 550% | Not Rated | 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 | 00000000 | 000000 |