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🔧 Seal it, bond it, own it — the ultimate fix for pros who settle for nothing less!
Sikaflex-221 is a premium black polyurethane sealant and adhesive designed for permanent, elastic seals on a wide range of surfaces including metal, plastic, and ceramics. Its age-resistant, waterproof formula withstands harsh elements like seawater and acids, while being NSF-approved for safe use in drinking water and food environments. Packaged in a convenient cartridge compatible with various application guns, it offers quick curing, sandability, and paintability for professional, durable finishes.















| ASIN | B00NW5LWHA |
| Best Sellers Rank | #35,136 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #32 in Adhesive Caulk |
| Brand | SIKA |
| Brand Name | SIKA |
| Colour | Black |
| Country of Publication | USA |
| Customer Reviews | 4.5 out of 5 stars 1,503 Reviews |
| Item Form | Paste |
| Item Weight | 10.1 Ounces |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | A P Products |
| Manufacturer Part Number | 90893 |
| Material Type | Silicone |
| Model | SIKA-90893 |
| Number of Items | 1 |
| Size of liquid in ounces | 10.1 Fluid Ounces |
| Surface Recommendation | Versatile, suitable for various surfaces |
| Unit Count | 300 Milliliters |
| Water Resistance Level | Waterproof |
K**Y
sikaflex is the BOMB
Great brand always works
S**N
Great
Amazing stuff. Using to seal up my Alu-Cab
T**D
Excellent.
Not inexpensive, but works very well. Sticks well to many different surfaces.
C**N
Buena opción
Me ayudó con la filtración de agua en estas lluvias
D**B
The best
Best adhesive sealant I've ever used. I've gone through many tubes of this. It's never let me down except when removing it lol!
Trustpilot
1 day ago
2 weeks ago