Filter by
Manufacturer Model Number
For Use On
Manufacturer
Minimum Temperature
For Joining
Paintable
Container Type
Color
Formulation
Hardness
Hardness Rating
Begins to Harden
Elongation
Export Control Classification Number (ECCN)
Material
Tensile Strength
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Mixing Required
Performance
Clarity
DFARS Specialty Metals
REACH
RoHS
Reaches Full Strength
Type
Container Size
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.
Container | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 6937T948 | 000000 |

























