About Sealant Flexibility
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Sealants

These sealants are non-sagging, so they won't drip from vertical and overhead surfaces.
Elongation and joint compression/expansion tolerance indicate flexibility. 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 | |||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Tensile Strength, psi | Hardness | Temp. Range, °F | For Joining | Choose a Color | Each | |
Sika Sikaflex Polyurethane | |||||||||||||
201 | 10.1 | Cartridge | 4 hrs. | 3 days | 550% | -35% to 35% | 175 | Medium Soft (Durometer 45A) | -40° to 190° | Metal Wood | 000000 | 000000 |
Primer for Sika Sikaflex Polyurethane Sealants (3.4-oz Bottle) | 0000000 | Each | 000000 |
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 | ||||||||||||
1-A | 10.1 | Cartridge | 6 hrs. | 7 days | 550% | -35% to 35% | Medium Soft (Durometer 35A) | -40° to 170° | Metal Metal to Plastic Metal to Rubber Metal to Composites Plastic Plastic to Rubber Plastic to Composites Rubber Rubber to Composites Composites Masonry Wood | 0000000 | 000000 | |
1-A | 20 | Sausage Pack | 6 hrs. | 7 days | 550% | -35% to 35% | Medium Soft (Durometer 35A) | -40° to 170° | Metal Metal to Plastic Metal to Rubber Metal to Composites Plastic Plastic to Rubber Plastic to Composites Rubber Rubber to Composites Composites Masonry Wood | Limestone | 00000000 | 00000 |
Primer for Sika Sikaflex Sealants (3.4-oz Bottle) | 0000000 | Each | 000000 |
All-Weather Application Structural Sealants











Apply these sealants in cold temperatures, on wet surfaces, and even through running water. They are structural sealants that combine the mechanical strength of an adhesive with excellent sealing properties and high flexibility. 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 good for use between dissimilar materials and in environments with wide temperature fluctuation.
Container | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Tensile Strength, psi | Hardness | Temp. Range, °F | For Joining | Choose a Color | Each | |
Polyether | ||||||||||||
5 fl. oz. | Tube | 20 min. | 7 days | 525% | -35% to 35% | 370 | Medium (Durometer 45A) | -40° to 200° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood Wood to Glass | White | 000000 | 00000 |
10.1 fl. oz. | Cartridge | 20 min. | 7 days | 525% | -35% to 35% | 370 | Medium (Durometer 45A) | -40° to 200° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood Wood to Glass | 0000000 | 00000 | |
20 fl. oz. | Sausage Pack | 20 min. | 7 days | 525% | -35% to 35% | 370 | Medium (Durometer 45A) | -40° to 200° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood Wood to Glass | 000000 | 00000 | |
28 fl. oz. | Cartridge | 20 min. | 7 days | 525% | -35% to 35% | 370 | Medium (Durometer 45A) | -40° to 200° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood Wood to Glass | 000000 | 00000 | |
2 gal. | Pail | 20 min. | 7 days | 525% | -35% to 35% | 370 | Medium (Durometer 45A) | -40° to 200° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood Wood to Glass | 000000 | 000000 | |
5 gal. | Pail | 20 min. | 7 days | 525% | -35% to 35% | 370 | Medium (Durometer 45A) | -40° to 200° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Asphalt Composites Composites to Glass Glass Masonry Wood Wood to Glass | 000000 | 000000 |