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 Hybrid Polymer | |||||||||||||
505 UV | 10.1 | Cartridge | 30 min. | 7 days | 275% | Not Rated | 225 | Medium (Durometer 45A) | -40° to 190° | 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 Composites Composites to Glass Glass Masonry Wood Wood to Glass | White | 0000000 | 000000 |
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 | 00000 | |
221 | 10.1 | Cartridge | 60 min. | 3 days | 500% | -12.5% to 12.5% | 260 | Medium Soft (Durometer 40A) | -40° to 190° | Metal Metal to Plastic Metal to Rubber Plastic Plastic to Rubber Rubber Masonry | 000000 | 00000 | |
227 | 10.1 | Cartridge | 40 min. | 3 days | 600% | -12.5% to 12.5% | 245 | Medium Soft (Durometer 40A) | -40° to 190° | Metal Metal to Plastic Metal to Rubber Plastic Rubber | 000000 | 00000 |
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 | ||||||||||||
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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 | 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 |
15LM | 10.1 | Cartridge | 6 hrs. | 7 days | 700% | -50% to 100% | Soft (Durometer 20A) | -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 | 00000000 | 00000 | |
252 | 10.1 | Cartridge | 40 min. | 3 days | 400% | Not Rated | Medium (Durometer 50A) | -40° to 190° | Metal Metal to Composites Composites Wood | 000000 | 00000 |
Primer for Sika Sikaflex Sealants (3.4-oz Bottle) | 0000000 | Each | 000000 |
Submersible Sealants
These non-sagging sealants will not drip while hardening on vertical and overhead surfaces. They’re marine grade, so they stand up to water, corrosion from salt spray, mildew, and UV light.
Sika Sikaflex sealants meet NSF/ANSI 61 safety standards for use with drinking water.
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. Sealants that are good for joining dissimilar materials also work well in environments with wide temperature fluctuation.
Container | |||||||||||||
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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 | Specifications Met | For Joining | Choose a Color | Each | |
Sika Sikaflex Polyurethane | |||||||||||||
291 | 10.1 | Cartridge | 60 min. | 3 days | 500% | -12.5% to 12.5% | Medium Soft (Durometer 40A) | -40° to 190° | NSF/ANSI 61 | Metal | 000000 | 000000 |
Primer for Sika Sikaflex Sealants (3.4 fl. oz Bottle) | 0000000 | Each | 000000 |
High-Strength Self-Leveling Concrete Joint Sealants
Seal concrete joints in high-traffic locations—these sealants stand up to heavy wear and tear, such as steel wheel traffic. Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.
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. For high-wear applications, choose a harder sealant for the most abrasion resistance.
When Sika Sikaflex Polyurethane requires a primer, for best results use Primer 260 on metal and Primer 449 on plastic and rubber.
Container | For Max. Crack | |||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Wd. | Dp. | Temp. Range, °F | For Joining | Color | Each | |
Sika Sikaflex Polyurethane | ||||||||||||||
1C SL | 10.1 | Cartridge | 2 hrs. | 5 days | 320% | -25% to 25% | Medium Soft (Durometer 35A) | 1/2" | 1/2" | -40° to 170° | Metal, Plastic, Rubber, Composites, Glass, Masonry, Wood | Limestone | 0000000 | 000000 |
1C SL | 29 | Cartridge | 2 hrs. | 5 days | 320% | -25% to 25% | Medium Soft (Durometer 35A) | 1/2" | 1/2" | -40° to 170° | Metal, Plastic, Rubber, Composites, Glass, Masonry, Wood | Limestone | 0000000 | 00000 |
High-Strength Concrete Joint Sealants
Seal concrete joints in high-traffic areas—these sealants stand up to heavy wear and tear, such as steel wheel traffic. They're non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).
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. For high-wear applications, choose a harder sealant for the most abrasion resistance.
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. | Temp. Range, °F | For Joining | Color | Each | |
Sika Sikasil Silicone | ||||||||||||||
728 NS | 29 | Cartridge | 25 min. | 7 days | 1,000% | -50% to 100% | Soft (Durometer 10A) | 1" | 1/2" | -80° to 350° | Metal, Plastic, Rubber, Composites, Masonry, Wood | Limestone | 0000000 | 000000 |
Primer for Sika Sikasil Sealant (8-fl. oz. Bottle) | 0000000 | Each | 000000 |
UV-Resistant Glass Sealants
These sealants don't degrade in sunlight. Also known as glazing compounds, use these sealants to install glass in framing. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, these sealants are RTV (room-temperature vulcanizing).
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.
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 Silicone | ||||||||||||
295 | 10.1 | Cartridge | 60 min. | 72 hrs. | 700% | -50% to 50% | Soft (Durometer 35A) | -40° to 190° | Plastic Plastic to Glass Rubber Rubber to Glass | 000000 | 000000 |