Rustproofing new car with Carwell

[Donald]

While I am a CarWell fan, when the vehicle is new, I do not see the stuff as staying on well when applied over painted metal. When the vehicle is older, the stuff soaks into rust, but here it seems to easily get washed off.

Maybe something like Waxoyl under the car. I still think CarWell sprayed into cavities is best.

 

[Nickdfresh]

Originally Posted By: Donald
While I am a CarWell fan, when the vehicle is new, I do not see the stuff as staying on well when applied over painted metal. When the vehicle is older, the stuff soaks into rust, but here it seems to easily get washed off.

Maybe something like Waxoyl under the car. I still think CarWell sprayed into cavities is best.


It seems to have stayed on my parents cars pretty well (2006 and 2011 with little or no rust)...

 

[VNTS]

Paint the underside with Eastwoods paints then spray with their HD Antirust, waxy product.

Use fluid film with wands and spray inside subframes, rockers, lower doors, hatches and nooks and crannys. etc

Only way to properly rust proof, spraying the runny films on the floors wash off and dirt sticks to other areas and turns into a mess.

 

[Kestas]

I was once told that a new car should age a bit before rustproofing. The reason being that the mill oil on some parts needs to wash off to allow better adhesion of the compound.

 

[Donald]

Originally Posted By: Kestas
I was once told that a new car should age a bit before rustproofing. The reason being that the mill oil on some parts needs to wash off to allow better adhesion of the compound.


This one was probably 10 months old when I had it treated at Carwell.

 

[sciphi]

It doesn't matter if it's perfect. It'll still be far more robust than the factory rustproofing.

No rustproofing is a magic bullet against rust. All we can do is slow it down to a crawl that'll take longer than we'll have the car.

 

[KrisZ]

In my experience dirt/dust helps a lot with resisting wash off. With thin rustproofing oils like Krown or Carwell, the first 2-3 applications usually drip the most and wash off the most. But as more and more layers are sprayed on and more and more dirt collects underneath, the dripping decreases and the underside stays wet for much longer.

 

[demarpaint]

Originally Posted By: Kestas
I was once told that a new car should age a bit before rustproofing. The reason being that the mill oil on some parts needs to wash off to allow better adhesion of the compound.


I never heard of that, I was told the sooner you get the stuff on the better. Before any of the nuts, bolts etc, start to rust. I do see a point in what you said though. I did mine within a month after delivery, and the coating held up perfectly one year later. I will touch it up in the spring if needed.

 

[Donald]

The requirement from CarWell for warranty is within 1 yr from manufacturer date.

 

[doitmyself]

I read somewhere, maybe the Krown site, that in spite of the coating appearing to have been washed off, a microscopic layer still exists to ward off rust. One year after my first Krown application, a finger rubbed on the underside of the car did show a film of something. Whether it was Krown or just road grime is impossible to know. It seems that most of these products wash off your hands under the sink with soap, so how do they last through car washes?