






🖤 Seal it once, seal it right — the black magic your projects deserve!
Sikaflex-221 is a premium black polyurethane sealant adhesive offering versatile, permanent bonding across metals, plastics, and ceramics. Its age-resistant, waterproof formula withstands harsh elements including seawater and acids, while NSF approval ensures safety for drinking water and food environments. Ready-to-use in a convenient cartridge, it delivers fast curing, sandable, and paintable seals ideal for professional-grade internal and external applications.















| ASIN | B00NW5LWHA |
| Best Sellers Rank | #86,815 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #71 in Adhesive Caulk |
| Brand | SIKA |
| Brand Name | SIKA |
| Colour | Black |
| Country of Publication | USA |
| Customer Reviews | 4.5 out of 5 stars 1,432 Reviews |
| Item Form | Paste |
| Item Weight | 10.1 Ounces |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | A P Products |
| Material Type | Silicone |
| Size of liquid in ounces | 10.1 Fluid Ounces |
| Surface Recommendation | Versatile, suitable for various surfaces |
| Unit Count | 300 Milliliters |
| Water Resistance Level | Waterproof |
J**H
Funciona correctamente
Trabaja bien. Sella correctamente. Solamente noté que fue sencillo de quitarlo después de varios meses en unas piezas revestidas de pintura esmalte
O**A
Perfect for automotive use
K**Y
sikaflex is the BOMB
C**N
Buena opción
Me ayudó con la filtración de agua en estas lluvias
R**.
Strong, Reliable, and Easy to Use.
ترست بايلوت
منذ 5 أيام
منذ 4 أيام