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🔧 Seal smart, last longer — the pro’s choice for flawless joints!
Sikaflex 1A is a premium one-component polyurethane sealant designed for durable, flexible, and weather-resistant sealing of concrete and masonry joints. It offers strong adhesion without primer, accommodates significant joint movement (±35%), and cures to a tough, elastic finish ideal for both vertical and horizontal applications.










| ASIN | B00MH8OIXS |
| Best Sellers Rank | #51,816 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,064 in Caulk #1,089 in Industrial Sealants #101,083 in Hardware |
| Brand Name | SIKA |
| Color | ALUMINUM GRAY |
| Customer Reviews | 4.0 4.0 out of 5 stars (52) |
| Full Cure Time | 120 hours |
| Included Components | 20 oz sausage |
| Item Form | Paste |
| Item Weight | 1.3 pounds |
| Liquid Volume | 590 ml |
| Manufacturer | SIKA |
| Material Type | Polyurethane |
| Maximum Gap Fill | 1.2 inches |
| Model | 91002 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 91002 |
| Surface Recommendation | Concrete |
| Tensile Strength | 175 psi |
| UPC | 033886003001 |
| Unit Count | 1 Count |
| Water Resistance Level | Waterproof |
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