Oil Rustproofing in Wet Weather

[camrydriver111]

Rust proofing companies say their products have water repelling properties and can be applied in any weather and be effective. Is this actually legit or they need to say this to have business year round?

I have some doubts. It may have some water displacement properties, but you would need to use a lot of product to displace the water on a very wet car. Logically the oil should creep further on dry surfaces than wet ones, and the effectiveness would be reduced on a wet car.

What are your thoughts on getting you car rustproofed with an oil based spray like Krown or Fluid Film in wet weather? Would you do it on a wet car or wait for dry weather?

 

[Rand]

They usually spray around 2 liters.
I think dry weather conditions are closer to ideal.. but wet is not the end of the world.

 

[B1974]

Depends on the shop doing the application.

 

[Tdbo]

I've never had any issues. When I took my truck in to be Krown'd in September, I was told that I could skip a year if I wanted to because of the buildup on the body.

 

[PoorMans180SX]

They do indeed work.

This guy has done the most extensive long-term testing I have seen anyone document on the internet.

https://www.youtube.com/c/RepairGeek/channels

This is apparently the most effective stuff and what I'll be using this year.

https://www.amazon.com/Blaster-Protection-Automotive-Undercoating-Applications/dp/B09HGGZYTC

I'm going let the car sit in a garage or preferably a heated shop overnight to dry out before I do the actual application.

 

[Rand]

lanolin based formula so does it smell like sheep butt.. (ie similar to fluidfilm)

 

[JC1]

I just fluid filmed the caravan today. I do the doors via a hole with the body plugs, did the entire undercarriage and removed the plastic wheel liners to spray everything else.

It rained this afternoon, but it won't wash everything off there is a buildup of stuff from the previous years.

 

[doitmyself]

I prefer to get my car Krowned when there won't be any rain for a few days.

 

[demarpaint]

A dry surface and dry weather conditions are always better to apply rustproofing compounds to.

 

[mattd]

I would prefer dry weather.