Undercoating

When you no longer have any coverage. Applying over rust thats already there won't stay as long needing frequent reapplying. Thats why cosmoline does its best when used on a new vehicle. After 5 years my truck is still mostly covered, except for spring touchups in the high abrasion areas like the wheel wells, and leafs. Still thats a huge improvement over stuff like fluid flim, or wool wax.
 
how do U know coverage
will it be noticeable to eye or do U need to feel upon it for the texture, etc?
this is for the amber and NOT the black stuff
 
I'll always apply 2 coats, an hr apart on rust free, freshly painted steel, but only when the temps are 70 degrees, or better. Doing it over surface rust seems the rust soaks in the spray like a sponge, and doesn't last. Whatever you do make sure the chassis your using this cosmoline on is dry, and spotless. Never spray cosmoline over a chassis that been already done with a lanolin inhibitor.
I've tried other cosmoline based aerosols like crc, but cosmoline rp-342 amber seems to be the best.
 
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Do U hold a flashlight to it for coverage inspection
To check for wear of any
I recall putting on thick once the rubbery tar undercoating was fully removed in one section
The one I am inspecting in the air
 
I put some cosmoline on the driver's side outer frame last year on that red gen2
It originally had rubbery tar spray done at the dealer and I have been toiling at removing it little by little
Wanted to test the cosmoline coverage for wear after a year after application
I git sum pics tomorrow!
 
That stuff doesn't hold up long when you use it on a vehicles undercarriage that has higher abrasion areas.....it's thin waxy coating gets blown out quickly compared to crc, or cosmoline. It's just a bit better than wd40. Imo, boeshield is better used for lubricating door hinges.
 
Waxoyl is a lot better from what I been told, its more like cosmoline with petro, plus paraffin additives, I think that boeshield stuff is just a consumer paraffin type lubricant, while waxoyl is an industrial rust inhibitor thats professionally applied.
 
i need to clean off the gen2 knuckles and spray this all over them
so much greasy dirt all over them from that woolWax spray done years ago
 
You really not need to coat those parts unless just wanting them to look pretty. Someday someone may need to replace them. I'd hate to be the one.
 
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