Fluid Film 11.75 Oz Undercoating Protection Aerosol Spray Can Black 3 Pack, Rust Inhibitor and Prevention, Anti Corrosion Multi Purpose Penetrant and Lubricant, Extension Wand

I drive a 6-year-old pickup that I intend to keep for many more years, and live in New England where lots of salt is used in the winter for keeping the roads from icing up. The result is rust spots starting to form on the underside of my truck.I've used Fluid Film before and it works great; it's lanolin which sticks to the metal and keeps water from getting in. The downside of this is that it smells horrible when you're applying it. (Do NOT get any on your exhaust or you'll smell it for weeks!) A small price to pay for preventing rust, though!I have only been using this to spot-treat sections starting to show signs of rust, and it's very effectively kept the rust from spreading or getting larger. The advantage of Fluid Film Black is just in the color; sprayed over rusty spots on the black frame, it makes them look better than the clearish-tan shade of regular Fluid Film. (Over time, some road grime will adhere to it--which doesn't hurt the effectiveness at all--and it'll look black anyway, but having a black color from the start is even better.)In the attached photo, the glossy sections have just been treated with Fluid Film Black. Over time it's lost its shine as expected and desired and looks just like the rest of the frame. More important than looks, I don't have to worry about it rusting this winter.

Black fluid film - makes everything look new when you spray it on the underside of your vehicle!

Great product that I will buy again. Yes, this is a messy thing that you have to be prepared for, but you can’t complain about it, anything greasy is messy. I used it everywhere I had rust, and you can’t even see it, you need to keep in mind that this will not last forever under your car. I truly recommend using this product. Thank you.

Fluid Film is an absolute game-changer when it comes to rust prevention. I’ve used it on everything from my truck’s undercarriage to tools, trailers, and even hinges—and it never disappoints. It penetrates deep, stays put, and forms a solid barrier against moisture and salt. Perfect for harsh weather and long-term protection.It goes on smooth, doesn’t dry out or crack, and the lanolin base makes it safer and less toxic than a lot of other products on the market. The smell is mild, and it’s super effective at creeping into tight spots where rust loves to start.My only gripe? The applicator. It tends to get messy, and I ended up with it all over my hands. Not a dealbreaker, but wearing gloves next time is a must. This is the reason for the 1 star deduction. If they fix the applicator, I’ll bump it up to 5 starsAll in all, Fluid Film is a staple in my garage now. If you care about your gear lasting, this stuff’s worth every penny.

We’ve all seen the videos on YouTube. We all know how well the actual product works. However, I didn’t expect the poor design of both the spray nozzle and tube to be so bad. They both leak so much that it’s almost impossible to work with the can. That and it wastes almost as much product as you’re attempting to get in the frame. Not sure how this could be remedied for use with the rattle cans, but something needs to happen.

Use this every year and every year the frame on my truck looks great.

Came with regular aerosol tips, not the one shown. Did not come with the wand. I was careful to only apply it to frame rails & other vehicle structure and 3 cans were not enough.Made a pretty damn big mess even though I did it on a calm day. Bought another 3 cans to finish the job but next year when I need to reapply, I'll be looking to go in a different direction.

I bought this after much investigation. Also, it was recommended by a Toyota auto tech as a alternative to Ziebart. Said it should be reapplied every year in snow areas. Applies easily and a little goes a long way.