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For Joining For Joining |
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Container Type Container Type |
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![]() | Sausage Pack |
For Use On For Use On |
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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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Type Type |
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Begins to Harden Begins to Harden |
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Reaches Full Strength Reaches Full Strength |
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For Use Outdoors For Use Outdoors |
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Elongation Elongation |
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Formulation Formulation |
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Tensile Strength Tensile Strength |
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Paintable Paintable |
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Hardness Rating Hardness Rating |
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Hardness Hardness |
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Color Color |
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![]() | White |
Container Size Container Size |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Clarity Clarity |
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Mixing Required Mixing Required |
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Application Application |
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Minimum Temperature Minimum Temperature |
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Maximum Temperature Maximum Temperature |
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About Sealant Flexibility
More
Structural 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.
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. For joints between dissimilar materials and in environments with wide temperature fluctuation, choose a sealant with a higher elongation or joint compression/expansion tolerance. For high-wear applications, choose a harder sealant for the most abrasion resistance.
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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 | Color | Each | |
3M Polyurethane | ||||||||||||
551 | 20.3 | Sausage Pack | 180 min. | 24 hrs. | 600% | Not Rated | Medium (Durometer 45A) | -40° to 190° | Metal Metal to Plastic Metal to Rubber Metal to Composites Plastic Plastic to Rubber Plastic to Composites Rubber Rubber to Composites Composites Wood | White | 00000000 | 000000 |