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About Sealant Flexibility
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Concrete Joint Sealants
Seal joints and gaps in concrete. These sealants are 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. These sealants are best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.
Container | For Max. Crack | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Wd. | Dp. | Application Temp. Range, °F | Temp. Range, °F | For Joining | Color | Each | |
3M Polyurethane | |||||||||||||||
| 525 | 10.5 | Cartridge | 90 min. | 24 hrs. | 600% | Not Rated | Soft (Durometer 25A) | 1" | 1/2" | 40° to 95° | -20° to 175° | Metal, Plastic, Masonry, Wood | Gray | 0000000 | 000000 |
| 525 | 20.3 | Sausage Pack | 90 min. | 24 hrs. | 600% | Not Rated | Soft (Durometer 25A) | 1" | 1/2" | 40° to 95° | -20° to 175° | Metal, Plastic, Masonry, Wood | Gray | 0000000 | 00000 |