I tried the spray cans of fluid film this past fall and the first wash with the high pressure hose completely removed it.

I wonder if the professional job holds up better.

When I spoke with them over the phone about this, they said fluid film was better in spots that don't get washed.

 

We have the spray kit and gallon containers. I spot treat using the cans. It's not permanent, you definitely have to reapply it every so often.

 

It seems like great stuff and I was psyched to use it. But for the price of the cans and how long it lasts (or doesn't last) it just didn't seem worth it to me.

How long did it hold up for you? Especially in the areas that get blasted at the car wash.

 

I want to get Krown done on my next truck. What concerned me is the drilling of holes. This video here shows there are factory holes that can be used instead of drilling. When you get it done tell them you don't want any holes drilled. And watch them as they do it so they don't mess up and start drilling holes everywhere on your brand new truck anyway. You want to use the factory holes and spray the undercarriage. No holes should be drilled at all.

 

Paul, I read the Krown FAQ. Here it is copied from their site

"Can you spray an aluminum vehicle?
Krown is designed to work most effectively with steel. However, it will also provide protection on aluminum, especially where dissimilar metals meet. There is no negative impact whatsoever to treating an aluminum vehicle. The Krown product will also help to protect the electrical components of your vehicle as the product is designed to displace moisture and leave a light oily barrier."

It doesn't seem from this statement that it effects Aluminum does it? I was told that Aluminum doesn't rust but moisture and road salt does make it oxidize too. I don't think that it eats through like steel but it does do something. I figure the Krown oil will help here too. Since the Krown stuff is environmentally friendly I figure what can it do to metal???

 

...

 

I don't blast it once I apply it. It has held up perfectly this way. It's very durable, but you can't powerwash it and have it stay on. I'd be surprised at any product that could. My car is still coated all underneath. Same with my truck.

 

Hi All,
I heard back from Krown and they have used the product on Teslas, F150s and other aluminum applications with no adverse affects. I also talked with the dealer, Krown Stateline Rustproofing, in Monroe Michigan and he has treated 2015 & '16 F150s.

I know that there is not a lot of data available at this time, yet I'm going to give it a try and we will see what happens. The cost for my SuperCrew is around $145 for the first treatment. I will require returning annually for follow up treatment. This is inline with Ziebart yet I like the idea of the lighter product that will seep into the seams.

Thanks to everyone who provided input.
Paul, Sandusky Bay, Ohio

 

Hi Daniel,
Rust and Corrosion are both Oxidation. Oxidation of metals occurs when an oxidizing agent, in our case salt, combines with moisture and oxygen to oxidize the metal. I was more concerned about the reaction between the Krown product and the bonding agents (aka "Glue") used to hold the truck together. Apparently, the product doesn't affect the agent.

I've got an appointment to get it done this Friday.
Thanks for your info,
Paul, Sandusky Bay, Ohio

 

I know this is kind of a side note as were the only ones speaking of FF, but I wanted to comment.

When I've used white lithium grease in the past, that stuff had no problem staying on all winter. Even when it would get blasted with the high pressure hose weekly. I know FF would work better at preventing rust, but I really expected it to hold up better.

I don't want to not be able to wash my truck all winter. I feel like that would just end up being worse in the long run.

When I wash, I blast every part of the undercarriage, I sparay over the tops of the wheel well (accessible when looking up from the rear bumper) rockers, door lips, etc.

I used 4 cans of FF last fall @ $12 per can. There wasn't a sign of any FF left on the truck by the first snow fall. And I didn't even use a high pressure hose when I washed before winter.

Maybe it works great for the average person who doesn't care to wash their vehicle all winter, but for someone like myself who washes their truck anytime it's driven through salt, that stuff just doesn't work.

 

Once a Year I take my 2500 Plow truck here
www.nhoilundercoating.com
worth every penny, last all year too!

 

My truck is too old for that at this point. But it has 0 rust and I'll stick with repainting yearly.

However, that stuff looks great and I'll keep it in mind for my next truck!

A friend of mine uses something called wax oil. It's not cheap, but it gums up and stays in place even when blasted with a high pressure hose. Fluid film is just too thin and that's my issue with it.

 

If your truck is still rust free its never too late for this stuff. It will keep it rust free! I recommend these guys they do an awesome job & let me watch everything.

 

Ditto that. It's my understanding that since it's an oil it will even do the job over existing rust.

 

Commercially you have to have it done each year. I've been to the car wash 4 times this winter to wash off the salt using the undercarriage sprayer. It's pretty high pressure I think. Sounds it anyway. The Krown undercoat is still on. I'm do to have it done again in the fall.