518 Automotive Anaerobic Gasket Maker & Flange Sealant - Sensor-Safe, Low Oder, Non-Corrosive - 50 ml, 1 Pack

Best gasket maker in my opinion. Left if for a week because of logistical issues. Did not cure and was able to slap the part on a week later with no issues. Rtv would have dried and had to be re applied

Used on a 9.9 yamaha outboard. Crankcase cover and coated the base gasket. Sub 60 degrees F above freezing, no primer/activator. I didn't start the engine for 3 days after installing the powerhead. Used a sheet of plastic to lay the base gasket out and glived hands to coat with sealant. Plastic stayed on my table for 2 days and never set up. I smeared this leftover sealant on 2 washers and clamped then together. It set up fine overnight without being open to air at about 40F.

Works great on precision flat flanges. Seals up nicely

Used it with gasket on a clutch to front casing on a Honda trx500fe foreman 4x4es. Works great. If a problem arises I will repost the problem. It’s a little pricey but can be used without gasket material. I already had a gasket so I used it in addition to a thin application of loctite 518 sealant on each side of the gasket, it takes a very small amount of 518, so you can get many uses out of one tube.

Used 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.

Never knew this existed. Only dries where oxygen is taken away. Just used it ,fingers crossed for no issues.

Perfect 518 rocks

Used on my 2003 Trailblazer when replacing the rear main seal.

I couldn't get the transmission pan to seal up on my Boxster. It uses a factory paper gasket but whatever I did for cleaning or torque sequence it had an annoying drip. On the third go I used a thin application on both sides of the paper gasket and voila!

Works as it is made for. I use it all the time

Real deal, works well

Quick delivery and great pricing.

Works as intended. Makes an excellent case sealer for 2 stroke engines