Permatex Gasket Liquid Sealant Car Silicone Oil Resistant Gasket Ultra Black RTV Silicone Cartridge Black 12 oz Compatible with O2 Sensors Low Odor, Non-Corrosive, Excellent Oil Resistance and Flexibility 50P24105JP Permatex

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very nice and works great

I got a used lawn mower that leaked oil badly out of a seal between top and bottom of engine. Would need total rebuild and several hours to fix .loosened bolts and allowed a tiny gap that I cleaned with brake cleaner. Drained oil. Pressure applied this in the gap, later tightened and applied a good amount over the gap. Left it for a week and put new oil in and not a tiny bit of a leak since. Refreshing not having it leak and smell burning oil. Hope it lasts a few years. Feels different than the orange stuff. More solid and less rubbery, no idea If that's good or bad.

Good stuff for good price

Used for my valve cover and I realized while I was using it and after it dried that this is a quality gasket maker! It's very thick and strong and I got some on my fingers and the next day I had to scrape it off with my nail and wow! It was very hard to remove, I mean it was not gonna let go of my skin without a fight! That told me all I needed to know!