Love this stuff !! I spray it on everything underneath. Pickups, trailers, quad axle. Keeps the Wisconsin salt at bay ! Better than tar undercoating because it's a soft wax like coating you can work with. I freshen the coating every year and my 2011 Chevy 2600 HD has no rust ! Awesome protectant !!

Amsoil’s Heavy Duty Metal Protector simply works. I’ve used it on outdoor equipment, yard decorations, and especially on vehicle undercarriage components. Always a good idea to surface prep first. Highly recommend!

Effective.

I sprayed the heavy-duty metal protection on our son's swing set two years ago. The waxy coating is still visible, the chains and hinges aren't rusting, and I can't imagine a better product for outdoor metal.

So far this does the job. Great on my pin box and other metal. Would highly recommend this stuff.

I absolutely love this product. Definitely don’t put it anywhere where you don’t want to see it. It has to be hand scrubbed to get it off if you get some on your vehicle paint or things like that. That being said it definitely sticks and last for long periods of time. The only bad I have to say. Is every can I have used the nozzle has leaked.

What can I say about this. Nothing bad. It used to be labeled, but not branded as "Motorcycle Chain Lube" in addition to heavy duty metal protector. I can see how this could work well for a motorcycle chain. This dries out to a waxy consistency, like "clean grease". I use it for garage door tracks, things like that. You spray it on and it does not move much. Dries and you are good to go. I have used it on some old car seat spring assemblies as well, and think that the automakers used something like this for that and seat tracks which I have done as well. Can't remember the name now, but remember that it is very similar to the stuff the military used to use to store any kind of metal weapon, long term. Starts with a C. This MP HD stuff I believe is the same.

As anyone who lives in New England knows, winters mean salty roads. This product does a good job of holding the salt and resulting rust at bay. My truck has plowed and been driven in every snow storm since 2005 and is holding up remarkably well. Certainly not rust free but it is in far better shape than most its age and mileage (almost 300k) due in large part to MP hd. I have used other products during the life of this truck but this one stands up the best.

I purchased this to use as a undercoating on my 2017 Tundra. It leaves a very nice finish on the metal. Very pleased with it.

I live in the northeast and winter is hard on vehicles, I use this product as an undercoating on my truck, it applies clear on metal, like the frame of the truck, seems to have a great shield against the salt and dirt on the roads