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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 |