Underbody rust/undercoating/rust prevention

[Kyle_T]

So I'd like to take car of the rust on my underbody before the car is on the road. As it looks now, the car will be driven in the winter. Id like to "rustproof" it as much as possible.

The car came from the south and was driven in 1 wisconsin winter by previous owner. The under body seems fairly clean, but there is still quite a but of rust that id like to be gone. And Id like to prevent anymore rust from forming. I read that to do a proper undecoating job all rust and moisture has to be completely gone otherwise the rubberized undercoating will trap the moisture and it will rust the underbody even faster.

Heres some picture I took of the underbody today.

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Worst 2 spots:

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My plan was to:
1. Grind off all major rust spots, and get rid of all "loose" rust
2. Brush on rust converter on all the rust that is left.
3. Clean/Prep rest of underbody
4. Spray rubberized undercoating.

So let me know what you guys think. Any input is great.

 

[rough]

I've never seen this post, and wow, what a difference, i'm curious to how it's holding up as well!!

 

[Chrispy0530]

I've been subscribed to this thread since it was first created, and completely forgot about this. I'm definitely looking forward to the results as well.