150g Auto Vehicle Exhaust System Sealant, Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers, Tailpipes, Catalytic Converters

Good

I tried the Visbella Auto Vehicle Exhaust System Sealant for a small leak in my exhaust, and it does work — the seal held and stopped the leak after curing. The product seems durable and heat-resistant, which is exactly what I needed. That said, the application can be a bit tricky and messy. The paste is thick and can be hard to spread evenly, and it sticks to your hands and tools easily. You need to be careful to apply it precisely, or it can get everywhere. Overall, it’s effective for sealing exhaust leaks, but the application process could be improved. Works as advertised, just not the cleanest or easiest product to use.

Good product

Bon produit et efficace

The Visbella Exhaust System Sealant works for quick patch jobs on mufflers or small pipe cracks. I used it to seal a minor exhaust leak near a joint, and it held up well for about a month of daily driving before needing touch-up. It’s a solid temporary repair option but not a full replacement for welding or part replacement. Build Quality & Design Comes in a 150g tube with a thick, gray paste that doesn’t slump. Easy to apply directly onto cleaned metal. Takes about 10–15 minutes to set and fully cures after running the car for heat exposure. Real Performance Test Tested on a mild steel exhaust with a 1-inch crack. After surface prep and application, the seal hardened well and stopped all noticeable noise and leaks. Withstood several heat cycles up to roughly 500°C without flaking. After a few weeks, some minor cracking appeared under vibration. Pros Easy to apply with no mixing required Withstands high exhaust temperatures Effective for sealing small holes or cracks Affordable and works as described Cons Temporary fix only; not a permanent bond Can crack with vibration or large gaps Requires clean, dry surface to adhere well Best For DIYers or car owners needing a quick fix for small exhaust leaks before proper repair. Not Ideal For Large holes, major rust damage, or long-term use without mechanical reinforcement. Tips for Buyers Clean and dry the area thoroughly before applying. Let it cure with engine heat for best results. Keep a spare tube for emergency roadside fixes.

Takes so much time to cure. After I applied it, I used a heater for around $30mins. It was still a bit soft 2 hours later. Eventually, it cured and it's hard as rock. Like it