J B Weld J-B Weld 32329 Ultimate Black High Temperature RTV Silicone Gasket Maker and Sealant - 3 oz.

I recently used this silicone high temperature gasket sealant for a car repair, and I'm genuinely impressed with how well it performed. I needed something that could handle high heat around the engine area, and this product delivered exactly what I was hoping for. The application was easy — the tube dispenses smoothly, and the sealant spread evenly. After letting it cure for the recommended 24 hours, the seal held strong and hasn't shown any signs of wear, even after repeated heat cycles. It created a solid, flexible seal that hasn't cracked, shrunk, or leaked. What I really appreciated is how well it bonded to the metal surfaces. It made a tight, professional-looking seal that gives me peace of mind. I've also used it around the thermostat housing and exhaust components, and it's holding up great in all those high-temperature spots.