DuPont Non-Stick Dry-Film Lubricant Aerosol, 10 oz

This item was purchased to lubricate the rails on my garage door. It worked perfect. Easy to use. No issues.

Works well, but it did leave some white stain on the metal.

Works well under my mowing deck

I was confused by all the different non-oil lubricating sprays available, so I purchased a variety and tested them out to compare them against one another. I found that they all have different properties and are best suited for different applications. My testing was simple. I sprayed all the lubricants for an equal amount of time over an equal area of aluminum foil. I then monitored them all over a period of a week indoors at an ambient temperature of around 20C. Then I applied 100 grams of force to each test area and subjectively assessed the amount of reduced friction. (see photos) DuPont Silicone Surface Safe Lubricant. This contains silicone, Teflon, and ceramic boron. It remained fully liquid, thin, and runny even after a week. This seems ideal in situation where you have parts that require a liquid lubricant such as bearings, etc. Best to use this in situations where you would usually use oil, but when you cannot use oil-based products. DuPont Chain-Saver Dry Lubricant. This is a molybdenum and Teflon wax-based lubricant. This remained fully liquid, very thick and waxy after a week. This is formulated for bike chains, and I can see why. Ideal for mechanical parts that must engage and disengage repetitively. Another possible use might be for zippers or similar fasteners. DuPont Multi-Use High-Performance Lubricant. This contains Teflon and silicone. This is essentially a compromise between all the other lubricant sprays. It stays liquid and wet after a week, but is not a lubricating as the others, not as non-stick as the others, and not as friction-reducing as the others. If you can only have one bottle of non-oil lubricant spray, this is a good choice, but it is not the best at any one thing. Basically, like the WD-40 of silicone sprays. Super Lube 91110 Silicone Spray. After a week, leaves a very thin, nearly dry surface, incredibly slippery with the best friction-reducing properties of all the sprays I tried. Wonderful! Also, this is H1 food grade safe (ok for use in equipment used in contact with food). If you need to reduce friction on long rail and track mechanisms with minimal tackiness that might attract dust, this seems ideal! Super Lube 11016 Dri-Film Lubricant. After a week, leaves a dry surface, rather slippery in reducing friction and rather non-stick. This is also H1 food grade safe (ok for use in equipment used in contact with food). If you must have a fully dry film lubricant, this is my favorite! DuPont Non-Stick Dry-Film Lubricant. After a week, leaves a dry opaque white film. Not really slippery or lubricating against friction, but entirely non-stick. Essentially like Teflon PTFE in a can. In situations where you want a non-stick coating like PTFE, but using Teflon tape, etc. is not an option, this seems like an excellent choice.

Best lubricant I have used. I love that it dries instantly and leaves virtually no residue. Way better than silicone, WD40, or graphite. Have used to lubricate my digital lock and gate hinges that are exposed to ocean salt corrosion and restored function of corroded mechanisms. Works well on squeaky hinges without making a mess. Made my garage door, which was binding, open and close with smooth operation when i squirted it into the rollers and hinges.

Our aging door locks were starting to stick. They had become quite difficult to turn, and would squeal. I thought I was going to have to replace the locks. But after spraying a shot of this lubricant into the key-way of the lock and working the lock a few times, the locks are working like new again -- easy to turn and no squealing! The lubricant is a volatile liquid solvent that contains particles of Teflon. When you spray it, the liquid carries the Teflon particles deep into the lock mechanism, and then quickly evaporates, leaving the particles behind to lubricate the metal surfaces. Using this spray seems "cleaner" than using powdered graphite for the same purpose -- no sooty black puffs of graphite to stain things. That said, you should be very careful to minimize your exposure to the Teflon in this product. Work outside if you can, or ventilate your work area. Don't breathe the spray, no test sprays, and use the provided plastic straw (comes taped to the 10-oz can) to focus the spray to just where it is needed. The 10-oz can is a bit difficult to operate. Removing the black plastic cap requires the hand strength of an auto mechanic, and inserting the plastic straw into the spray nozzle requires the dexterity of a surgeon. Both get easier after a few uses.

This didn't do much for my bike chain. As a liquid, it's fairly hard to apply to the bike chain. I put on gloves, squirted it onto the chain, and wiped the liquid over the bike chain. I could see where it applied properly from the white residue. It would only stop my chain from squeaking for a few days before I needed another application to reduce squeaking. However, this stuff works great on locks. I have a deadbolt built into a fence that gets heavily rained on, sometimes the keyhole or bolt will get stuck. I have other locks that have been giving me problems as well. I put this lube on my key and work the keyhole and repeat until the key can enter the keyhole and turn without resistance. I'll also lubricate the bolt itself so it slides easier. The locks have held up great.

Have used another brand of dry lubricant on my table saw cast iron. The manufacture of that brand loves it so much they put the price out of range. Found DuPont made the same product with an affordable price tag. Also has no additives that will affect finishes.

Buy only if the surfaces to be lubricated can be exposed while coating.

Bakwas product ....Don't buy