What not to spray fluid film on.

Boognish_Forever · Feb 28, 2020

My main question has anyone sprayed something underneath that caused damage and should avoid? I know not to spray my exhaust, brakes and rotors. I’m just curious on stuff like brake lines, aluminum, rubber anything, gas tank, plastic?

Dieselchessy · Feb 28, 2020

I spray it on my battery terminals, lawnmower parts, boat outboard parts, ect... I’ve never had it harm anything. It’s not too hard to clean up when you want to work on something.

They have a FAQ on their site that suggests it’s fine on most paints, rubber, ect...

FAQ | Fluid Film

Squint_Eastwood · Feb 28, 2020

every bolt and nut i put it on started rusting 4 months later, things that never used to rust do now, I don't use it anymore, animal fats contain salt

Squint_Eastwood · Feb 28, 2020

I don't think its meant for long term use, im switching to Parkerizing

RandyBobandy · Feb 28, 2020

Squint_Eastwood said:
I don't think its meant for long term use, im switching to Parkerizing

I’m only familiar with parkerizing in how it’s used on guns, how would you manage to parkerize the underside of a vehicle?

brillo_76 · Feb 28, 2020

Squint_Eastwood said:
every bolt and nut i put it on started rusting 4 months later, things that never used to rust do now, I don't use it anymore, animal fats contain salt

I haven't had a problem with it rusting things. That's interesting.

Anything possible though.

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brillo_76 · Feb 28, 2020

Very few things will react with fluid film. Weather strip rubber can if soaked in it can.

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Squint_Eastwood · Feb 28, 2020

RandyBobandy said:
I’m only familiar with parkerizing in how it’s used on guns, how would you manage to parkerize the underside of a vehicle?

Its more like cold black oxide than parkerizing, it comes in aerosols

Squint_Eastwood · Feb 28, 2020

brillo_76 said:
I haven't had a problem with it rusting things. That's interesting. Anything possible though.

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my hub wasn't rusty 4 months ago when i put some fluid film on it, I do live next to a brackish river by the ocean with high humidity, but I don't drive in saltwater and no road salt here

Dieselchessy · Feb 28, 2020

So like acid in a spray can?

I use Ospho or Corroseal as a rust treatment, then paint or coat of some type. They both use acid to make magnetite out of the rust.

Ospho is thin like water. It will dissolve light rust and turn heavier rust black. It doesn’t seem to harm paint or plastics. I wouldn’t put it on electrical stuff.
They claim it dries, but I don’t see that or use it that way. I just keep the area damp for a few hours and then let set over night. Then wipe off with lint free cloth.
I use Ospho primarily for light rust and pretreat of raw steel.

Corroseal is thicker, kind of like paint. It turns rust black and coats it. It’s good for undercarriages and stuff you don’t need to be smooth.

Squint_Eastwood · Feb 28, 2020

Dieselchessy said:
So like acid in a spray can?

I use Ospho or Corroseal as a rust treatment, then paint or coat of some type. They both use acid to make magnetite out of the rust.

Ospho is thin like water. It will dissolve light rust and turn heavier rust black. It doesn’t seem to harm paint or plastics. I wouldn’t put it on electrical stuff.
They claim it dries, but I don’t see that or use it that way. I just keep the area damp for a few hours and then let set over night. Then wipe off with lint free cloth.
I use Ospho primarily for light rust and pretreat of raw steel.

Corroseal is thicker, kind of like paint. It turns rust black and coats it. It’s good for undercarriages and stuff you need to be smooth.

I haven't tried anything yet, I was trying to nuts, bolts,screws.

Dieselchessy · Feb 28, 2020

Squint_Eastwood said:
my hub wasn't rusty 4 months ago when i put some fluid film on it, I do live next to a brackish river by the ocean with high humidity, but I don't drive in saltwater and no road salt here

Where is the fluid film? That hub looks dry.

Squint_Eastwood · Feb 28, 2020

Dieselchessy said:
Where is the fluid film? That hub looks dry.

I didn't lay it on thick just rubbed it around with a paper towel, probably didn't like heat and centrifugal force

Dieselchessy · Feb 28, 2020

I read your first 2 posts and didn’t bother to respond. I thought they were over the top sarcastic. Fluid film causing rust and then electroplating a car.

Now wiping fluid film on running gear with a paper towel.

I’m out.

brillo_76 · Feb 28, 2020

Squint_Eastwood said:
my hub wasn't rusty 4 months ago when i put some fluid film on it, I do live next to a brackish river by the ocean with high humidity, but I don't drive in saltwater and no road salt here

Oh I didn't doubt you have rust. High humidity and salt air can cause oxidation.

I just never heard of FF having salt in it or made from animal fat.

I know I put FF on rusty steel and it dosent get any worse and I haven't seen oxidation being caused by it. I seen FF wear off and start rusting where is gone

Wheel well and axle areas it's going to wash away.

Going to need a different solution then FF in your wheel area. As I am heading to cosmoline type solutions for my wheel area.

As I know it only last a month or 2 at the most in wheel wells as I been monitoring that on my experimental rig.

The wheel wells are basically getting power washed every time it rains. So it dosent last long in that area of the rigs.

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brillo_76 · Feb 28, 2020

Dieselchessy said:
Where is the fluid film? That hub looks dry.

I wouldn't recommend FF on the hub area at all. Not only water going to completely remove it. The heat will also bake the film off. When I weld an area coated in FF will evaporate away. As the hub area gets very warm I am suspecting it evaporated away as FF makes things look wet when it applied and on a surface.

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ToyotaBrah · Feb 28, 2020

Fluid Film is a tried and true product with an overwhelming amount of high reviews. Of course, you will always have those 1 or 2 people who think it doesn't work because of their own lack of ability to follow instructions.

FWIW: I have my complete frame and underbody coated in it. Rubber, metal, plastic, everything. The truck has been exposed to salted roads (both brine and rock salt) for 5 years, and I have not noticed any rust formation at all. Period. All of the bolts, nuts, clips, inside channels are clean from rust.

T4R2014 · Feb 28, 2020

Fake news. Fluid Film doesn't cause rust.

Hyde802 · Feb 28, 2020

I love fluid film. I live in VT where it snows and they SALT 5-6 months out of the year. I spray everything.

Lay on a thick layer, then take a nice drive down a dusty dirt road to cake it in. Otherwise it just washes off.

The only product I would consider switching to is NHOIL.

4restGump · Feb 28, 2020

Lol, just like the commercial, in granny voice “I put that shit on everything”

What not to spray fluid film on.

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