

Loctite 518 Gasket Sealant 6 mL Tube, Red (2096062) (Packaging may Vary)
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scott v
Greater than one weekIt’s an anaerobic gasket former from loctite; as you can expect, it’s a great product!
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willid3
Greater than one weekHard to find without ordering on line.
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Ali E.
> 3 dayThis is usually an excellent product, this particular tube was however much thicker than usual, and impractical for use. I would guess possibly too old, or a bad batch?
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steves landscaping
> 3 dayif you have a race car you will need this stuff
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Bawse
> 3 dayUsed this on a stihl chainsaw to seal the cylinder to the crankcase. Worked flawlessly.
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Brian M. Chappell
12-06-2025I would use this many more places if it wasn’t so expensive compared to RTV. It is so much cleaner and it seals just as well, if not better. Used it on transmission case and on jet ski pump.
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Chance
> 3 dayIts the Red Loctite we all know and love. 10/10
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cdchevron
> 3 dayWe rebuilt a lot of gearboxes were the cases are bolted together without a gasket; a metal-to-metal joint. This sealant is perfect for this and never lets us down. Very easy to use and will clean off with solvents and a rag if you need to remove it. It is a bit soft setting, so it doesnt dry out and crack. Excess that gets squeezed out of the joint will not separate and wind around inside the gearbox like silicone.
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Daniel Malcom
Greater than one weekUsed this product to seal two halves of an aluminium outboard crankcase. Directions said to use primer I did not. I thoroughly cleaned both surfaces with lacquer thinner then used a small paint brush to apply a thin coat to each side making sure to give a little distance near bearings. Then assembled crankcase let set for a couple of days. I was concerned after reading some reviews that the product would not cure properly without primer so I disassembled to check cure before completing assembly. All was fine cleaned again resealed and reassembled let sit for a week before running motor. No leaks ofter running motor multiple times. One tube will do many small engines. Would recommend. set time was not a big rush product cures when air is absent after assembly.
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Scott
11-06-2025What the heck... Why not? 5 stars for warmth. No issues with the product, sealed properly upon delivery and worked like it should have. Good stuff.