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#4467645 - 07/23/17 02:01 AM Boeshield T9 vs. Fluid Film
nthach Offline

Registered: 01/02/04
Posts: 3909
Loc: California
I just sprayed down the innards of a freshly installed roof rack with Boeshield T9 and I remembered that I told a friend I wanted to treat the more vulnerable parts of his car against road salt before ski season. While I did the T9 treatment to buy me time before I need to replace the crossbars, for some reason Yakima rusts faster than Thule I know that it's wax-based and Fluid Film is based off lanolin. I want to treat the existing corrosion first and then protect it. Does Fluid Film have an edge over T9 or it's all the same more or less?

#4467671 - 07/23/17 04:58 AM Re: Boeshield T9 vs. Fluid Film [Re: nthach]
SilverSnake Offline

Registered: 05/29/13
Posts: 592
Loc: Florida
Don't use either one. Go with S-100 Corrosion Protectant. Amazing stuff. Used it on my yacht engines and other metal parts for years. Not a spec of rust or corrosion even in the highly corrosive marine environment. I also use it on motorcycles, car/truck engine compartments, undercarriages, etc. Sprays on clear. You will be very happy. (or you can get it at any Harley-Davidson dealer)

Edited by SilverSnake (07/23/17 05:00 AM)
2016 Charger, 6.4L-485 HP (PUP 0W-40)
2017 BMW 330i, 2L-248 HP (BMW 0W-20)
2018 Jeep GC, 5.7L-360 HP (PUP 5W-20)
2008 20KW Generac (Amsoil 10W-30/30)

#4467674 - 07/23/17 05:21 AM Re: Boeshield T9 vs. Fluid Film [Re: nthach]
demarpaint Offline

Registered: 07/03/05
Posts: 29805
Loc: NY
I use this which Trav had suggested. It's not cheap it works very well and lasts. It also comes in spray bombs.
God Bless Our Troops

#4467756 - 07/23/17 08:07 AM Re: Boeshield T9 vs. Fluid Film [Re: nthach]
Donald Offline

Registered: 03/21/04
Posts: 20472
Loc: Upstate NY
Boeshield and FF both are excellent products.

On the undercarriage of a car you want some designed for that harsh environment. It's gravel, dust, water, snow and ice, mud, salt and brine. Something that protects a piece of pipe from rusting in your backyard might not be good on a vehicle undercarriage.

But the roof rack is not the same as the vehicle undercarriage. See how Boeshield does.
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)

#4467837 - 07/23/17 09:46 AM Re: Boeshield T9 vs. Fluid Film [Re: nthach]
SumpChump Offline

Registered: 02/11/14
Posts: 1978
Loc: Upper Midwest by the Lakes USA
Either would do very well used inside tubing. The T9 resista spray better in external uses imo. The fluid film "moves" better and flows way better in cold temps.

#4470933 - 07/26/17 11:55 AM Re: Boeshield T9 vs. Fluid Film [Re: nthach]
JHZR2 Offline

Registered: 12/14/02
Posts: 41805
Loc: New Jersey
Generally I prefer waxy coatings for locations inside of structures and where damage is less of a concern. Inside door skins, frame rails, etc.

I'm not opposed to waxy coatings on exterior surfaces, but I'm not a huge believer in their self healing ability after some time and flashoff. I'm a proponent of following up with an oily coat every so often regardless to help things reflow and cover other spots. The oil migrates into nooks and crannies too, which is where you really want it anyway, since major surfaces exposed usually wash and dry reasonably well.