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About Sealant Flexibility
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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 | Choose a Color | Each | |
Sika Sikaflex Polyurethane | ||||||||||||
252 | 10.1 | Cartridge | 40 min. | 3 days | 400% | Not Rated | Medium (Durometer 50A) | -40° to 190° | Metal Metal to Composites Composites Wood | 000000 | 000000 |
Primer for Sika Sikaflex Sealants (3.4-oz Bottle) | 0000000 | Each | 000000 |