Excellent product highly recommend dries to the touch, only negative is that the spray top is poorly design and will not hold the red spray straw will keep coming out

works great as do all Amsoil products do

I use this for undercoat on my truck. It dries quickly and works much better then other products that are actually advertised as undercoat. It doesn’t attract dirt. Other undercoating products do not dry, drip and need to be reapplied more frequently then MPHD.

Great product, seems to be working well, sprayed the entire chassis for salt protection and haven't seen any failing yet.

My son told me about this stuff, great product. Ordered a case of 12 large cans to spray the under body, frame, steering, suspension, on my new 2023 Jeep Gladiator, sprayed everything except brakes & exhaust. Using the supplied straw kept overspray to a minimum. Wore safety glasses & a N95 breathing mask made by 3M which both worked good. Truck stayed in my heated shop for 36 hrs after spraying to make sure it was completely dry. The mess it made on the cement floor was super easy to clean up with just regular mineral spirits. Plenty of videos on U-tube that go more in depth but I highly recommend this product. Duane.

One can did the majority of what I wanted to coat on my 2016 Silverado. Seems to do it’s job and I can see how with the wax type film.

I have used this protector on many of my vehicles. I have taken them to Moab, UT. Chicago, IL., Northern Texas, New Mexico, Louisiana, Georgia, Alabama, New Jersey...etc. and the protectant works well overall. I would tell you to check it once in a while and touch up if you feel it is required. It have save me a lot of money from possible corrosion.

Isn’t it funny how some of the coldest states in America get by just fine without covering their roads in salt? They use sand and it works perfectly. The best part about sand is it doesn’t cause anew truck to rust into oblivion 5 years later. Fortunately, for drivers in Wisconsin, our state dumps copious amounts of salt on our roads 6 months out of the year! I bought my Ram 1500 classic brand new in 2019, and every year before the first snow I coat the underside of my truck in MP HD. 5 winters later the underside of my truck still looks brand new. (I’m not exaggerating) Not a spec of corrosion, not even surface rust. All of the factory paint remains perfect preserved from the frame rails to the floor pans to the trailer hitch. My only suggestion to Amsoil, please offer a non-aerosol version so I can use my own sprayer. Sometimes trying to spray at an angle or upside down under the truck can be frustrating with the aerosol cans. Sell me a quart or gallon of the product and I’ll use my own sprayer for an easier more thorough application.

Used it on my Toro and Wright Lawn Mowers

I could not be happier with how this product applied and then dried. The underside of my 2016 F150 looks 100% better. Friends and coworkers noticed so I purchased a second case for gifts or as a thank-you. Every person I gave two or three cans to is thrilled with how their trucks came out.

use it a lot for years, good stuff

Long lasting great product for preventing rust

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.