That is fine, not selling you on it. Been doing this for 15+ years with the aforementioned products and have slept in a Holiday Inn a time or two.
undercoating with both Woolwax and Fluid Film
- Thread starter agarb
- Start date
- Joined
- Oct 21, 2021
- Messages
- 20
Thx I have about 5 gallons of woolwax left I’m gonna switch I like that it seems more liquid and thin. Probably better coverage and lass psi/cfm needed.
I know this was addressed to Hootbro, but I'll give you my opinion as well. Woolwax applies a little thicker and doesn't creep quite as well. Surface Shield is a bit thinner, creeps like crazy (I've seen it creep about 2-3 inches from the area applied), and from what I've seen, doesn't wash off as easily.
I only used the spray cans of SS on the hitch on my truck. I was trying it out. I washed it at a coin-op car wash and the wash spray immediately took the dirt and thick coating off. However, there is a light oily coating left that takes a couple to washes to get off. With FF and Woolwax, one good wash or a season of wheel spray will remove the lanolin coating.
Another fairly obvious difference is the smell. I'm not sure if SS even uses lanolin, so the smell is oily but not offensive. Fluid Film is by far the worst barnyard smell. Woolwax is sort of in the middle.
I only used the spray cans of SS on the hitch on my truck. I was trying it out. I washed it at a coin-op car wash and the wash spray immediately took the dirt and thick coating off. However, there is a light oily coating left that takes a couple to washes to get off. With FF and Woolwax, one good wash or a season of wheel spray will remove the lanolin coating.
Another fairly obvious difference is the smell. I'm not sure if SS even uses lanolin, so the smell is oily but not offensive. Fluid Film is by far the worst barnyard smell. Woolwax is sort of in the middle.
Surface Shield does have less Lanolin and a higher petroleum base than Fluid Film and Woolwax in their formulation. That is where the oilyness comes in.
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I would be worried drilling holes myself. The CarWell shop I went to in upstate NY would drill holes but all the shop did was rustproofing. I assumed they figured out where to drill the holes
A local mechanic in NY who did NH Coatings on the side shoved a wand up the drip hole in the door but did not drill any holes.
A local mechanic in NY who did NH Coatings on the side shoved a wand up the drip hole in the door but did not drill any holes.
I've used Fluid Film for years. It doesn't may not stay on surfaces exposed to splash as well as some others, but it is good enough. I had a 2008 Wrangler that saw extreme road salt every year, along with plenty of mud from off-roading. I treated it every other year. When I sold it at 17 years old, the underbody and frame looked like new.
I did not spray all over the place. Instead, I used Rustoleum Rust Reformer on anything that showed even a hint of surface rust. Especially areas like skid plates that had rubbed rocks and began to show surface rust, but really anyplace where there were chips in the paint, or welds where the paint had flaked off, etc. The Fluid Film then went inside the frame rails, underbody seams, nooks, and crannies. Sometimes I'd spray the outside of the frame rails and suspension mounts, springs, spring mounts, axles, but mostly just the vulnerable areas and areas where moisture might get trapped.
I also applied the FF every other year, not every year. I think it would stay inside areas sheltered from spray probably longer than that. But it worked as I had hoped. The Rustoleum application is every year and one can is more than enough to do two Jeeps.
Moving forward, I'll buy whatever is cheapest....FF, Woolwax, or Surface Shield.
As for the black, it looks good but when you go off-road through dirt, dust, or mud, it winds up looking the same as Fluid Film....which is to mean, dirty. LOL. But either way, it's protected.
I did not spray all over the place. Instead, I used Rustoleum Rust Reformer on anything that showed even a hint of surface rust. Especially areas like skid plates that had rubbed rocks and began to show surface rust, but really anyplace where there were chips in the paint, or welds where the paint had flaked off, etc. The Fluid Film then went inside the frame rails, underbody seams, nooks, and crannies. Sometimes I'd spray the outside of the frame rails and suspension mounts, springs, spring mounts, axles, but mostly just the vulnerable areas and areas where moisture might get trapped.
I also applied the FF every other year, not every year. I think it would stay inside areas sheltered from spray probably longer than that. But it worked as I had hoped. The Rustoleum application is every year and one can is more than enough to do two Jeeps.
Moving forward, I'll buy whatever is cheapest....FF, Woolwax, or Surface Shield.
As for the black, it looks good but when you go off-road through dirt, dust, or mud, it winds up looking the same as Fluid Film....which is to mean, dirty. LOL. But either way, it's protected.
4wd
$50 site donor 2026
Excellent job showing the difference between what you do versus those that do little/nothing - then are the loudest complaining about salt damage.
And avoid spraying any oil based rust proofing product on the vacuum hose that engages the front differential for 4WD (if you have one). Ask me how I know.
The never ending rust proofing discussions (excellent to share and learn). I choose to let someone else do it (Krown). Krown has it's pros and cons like everything. Some complain of it swelling rubber door seals. It's messy. It drips for a few days. My 13 year old Patriot is better than any previous vehicles regarding rust. Disregarding any value calculations (13 x $130 = $1,690), it's nice to drive a rust free vehicle and not fret when exposed to clouds of salt spray. Peace of mind has value.
I work with my Krown dealer to get quality work. Car care is no different than self-advocating for health care, etc..
Hey guys, going into the holiday period I wish everyone time for some R&R, do something important for you, enjoy family and friends. Reflect on the good things we can appreciate living in the U.S..
I work with my Krown dealer to get quality work. Car care is no different than self-advocating for health care, etc..
Hey guys, going into the holiday period I wish everyone time for some R&R, do something important for you, enjoy family and friends. Reflect on the good things we can appreciate living in the U.S..
