Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz

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!

Good quality

I used Sikaflex to adhere a roof wing to the back windshield of my car, and I’m seriously impressed with how well it worked. The bond is incredibly strong and feels permanent once cured. I let it set for about 24 hours before driving, and even after months of highway speeds and temperature changes, the wing hasn’t budged at all. The application was pretty straightforward, it has a thick, tacky consistency that gives you enough working time to position everything correctly before it starts to set. I’d recommend taping or clamping the part in place while it cures, because it does take a while to fully harden. Once cured, it’s flexible enough to handle vibration and movement, which is great for automotive use. One thing to note: this stuff is messy. It’s sticky, and once it gets on your hands or paint, it’s not easy to remove. Wear gloves, mask off surrounding areas, and have some cleaner or mineral spirits ready. Overall, Sikaflex delivered exactly what I needed, a strong, weatherproof, and vibration resistant bond that’s holding my roof wing securely in place. It’s not the cheapest adhesive, but it’s worth it for the strength and reliability.

Very good

Buen sellador excelente para celular y buena. Marca

Use this on my Airstream, works great.

It’s SIKA, it does the job right. Replacing the Water heater on RV and original install got over enthusiastic with the opening size. Used lots of SIKA to fill gap before applying the butle tape and the retaining ring to make sure no water leaks from rain