2 oz Tungsten DISULFIDE Sulfide WS2 Powder Ultra FINE ½ Micron 0.5 µ

Very happy with the quality of product along with its performance. What was important for me was that it's average particle size was 0.5um as one of the applications was to add a small quantity to my 1996 Chevy Suburban 5.7L engine oil. Cold starts are the number 1 factor for damaging engine. If your vehicle sits for long periods of time having extra protection against the metal-metal contact (w/ low lubrication) will preserve your engine or if your engine is going through oil and you end up running low you can damage the bearing seals or seize the entire engine. As for this product it wont dissolve in oil but it will readily become suspended and a LITTLE GOES A LONG WAY. It won't take more than a teaspoon to turn a quart of oil black. Back to the reason for 0.5um particle size is it needed to be small enough to pass through the oil filter and not get filtered out of the oil or end up clogging the filter. A decent Filter media usually Will catch around 99.5% of particles 20um and some are advertised as 2/20 - 10/100 meaning they will catch 90% @ 2um and 99.5% at 20um. So the importance of having a particle size 4 times smaller rather than half as small at 1um would mean higher likelihood that the particles wouldn't get filtered. The other use I had was to add a small amount to one of those oil application bottles with a pull out tube (used for oiling sewing machines or small access points) and I used it to oil squeaking hinges on tool boxes and doors in the house, roller wheels for garage door and just about every hinge point on any tool I had. While the oil is will eventually stop lubricating, the tungsten disulfide will be deposited and remain as a dry lubricant keeping the part in question working smoothly for years longer. It is one of the most robust and lowest friction coefficient compounds known to man. I also added it to some wheel bearing grease to form a hybrid. You'll see this done by some tool manufacturers with molybdenum disulfide and grease for meshing gears, it apparently helps to save on machining costs (you can use formed gears that have a "poorer" surface finish as the moly/grease will embed in the pores and help achieve desired lubricity instead of machining from stock steel). Anyway more than you all probably care to know but I do have 1 very important disclaimer. This stuff will stain just about anything, it easily transfers to surfaces and you'll have a mess of fingerprints everywhere if you're not careful. If you spill some on the floor be careful as it's deceivingly easy to slip on too.

Love this stuff, much more durable than graphite. I use this to coat my firearms and it leaves a nice shine. The stuff is sticky so be prepared to have black finger tips. Will buy more, but at 2ozs and the amount needed it might be another year.

Works as advertised.

I've been putting this into my older cars for years. i tested this in college for a nano paper and we ran an old car out of oil and this stuff kept it going. I swear by it now! quality is amazing and it goes a long way.

Add around 3/4 teaspoon to 4 quarts of engine oil, and it makes a difference. Just don’t overdo it!

I bought this along with some superlube full synthetic general purpose oil with teflon to put into a needle oiler for lubricating various things around the house and in my cars. My first practical use was on my toolbox in the garage. The drawers have started to develop a bit of resistance and grinding noise after being loaded with a decent amount of weight. I first dabbed a few drops of superlube on a particularly noisy and rough drawer to see if it would help by itself. It smoothed it out and reduced the noise a pretty respectable amount. The next day I took about 2.4g of superlube (probably less than ~10ml) and added roughly .2g of this stuff and gently mixed them and added the mixture to my needle oiler. I then added a few drops to the same drawer and I’d say it definitely made a difference. It’s not earth-shatteringly better than with just the superlube, but it’s noticeably smoother and quieter. It did seem to leave behind a film in the mixing cup and in my needle oiler, but I think I might need to use more to get the same effect on the drawer slides. I definitely recommend using a fine filtered respirator when mixing this stuff. It produces a mist of ultra fine particles even when carefully tapping the nozzle to get some to pour out. Many of the manufacturers of this stuff swear up and down that it’s inert and non-toxic, but I’d rather be safe than sorry.

Lubrication quality is amazing I'm ordering several more

I'm still experimenting with using this in firearms and machinery. It's been great so far. A little bit of this stuff goes a long way.