Floor Board Rust

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Project Box
Part Number(s):
Part Cost: $200
Best Place to buy: ~$115 Ebay - Buy a Gallon (I would, do the undercoating) WITH REDUCER!
Cost to Have it done in a shop: $ 1,000
Difficulty Level: 2
How long it may take: 1 hours + hot day in drying
Frequency: once
Tools needed: sanders
Special tools needed:


I recommend this on a nice hot dry day. You are going to need to let this dry, windows down/doors open for about a half a day.

Floorboard rust00.jpg

Drivers Side - Rear (Sanded)

Floorboard rust01.jpg

Passengers Side - Rear (notice rubber hole) (not sanded)

If you are noticing rust here, don't fret! Fit it! Take out all your stuff, as seen above.

1. Remove CAREFULLY that white coating that's on top of the metal floorboards. On my right side, it was in about 10 pieces. The left side peeled up nicely though. If yours looks fine, don't mess with it, you don't have rust!

2. Remove old Rust

Just use a small hand sander and wire brush to remove all the loose rust you can. Notice the left side picture has been sanded and all loose rust removed as best I could.

Floorboard rust02.jpg

Check this out. It's mid-summer here in Utah (very dry heat) when I took this picture. Inside the car bakes over 100 degrees over 8 hours a day, and STILL there is water here.

Remember to remove this hole plug CAREFULLY! It's fragile. Don't just punch it through, you may rip it.. like I did... Pull it up.

3.

Floorboard rust03.jpg

Tape up the sides of your carpet, so they will not flop down into the paint. (Notice how the right side has now been sanded and the plug removed)

4. Now just paint with Chassis Saver! and wait.

Floorboard rust04.jpg

Floorboard rust05.jpg

Floorboard rust06.jpg

Let it dry, then you can put your carpet back down.

AFTER it's bone dry, Put the pieces back in, if applicable.

While you're here, you can read about my Heat/Sound Floor Mats upgrade.

There is absolutely *no* smell whatsoever in my car. I was quiet worried. The paint claims that it makes it quieter as well as stop rust, but I am skeptical. I can't tell any difference. But it sure works well for stopping rust. While you are waiting for this to dry, paint the rest of your undercarriage. I think it would be easier to just lift up the whole car on 4 jacks, and take off all the wheels and make a day of this. Most of it's just waiting for it to dry, but it's fun.

It will take probably 3 hours at least before you can put back in the quiet floor mats (silver side down) and the sub-floor-mats and the normal top floors mats. I think I just let it sit there on a nice dry hot day for 8 hours+. When I was done, and it was bone dry, I put back in. If you are scared that it's not dry enough or hasn't had long enough to cure, don't worry about it. Just leave your floor mats out and drive around. There is absolutely *no* smell whatsoever in my car. after this procedure. The paint claims that it makes it quieter as well as stop rust, but I am skeptical. I can't tell any difference. But it sure works well for stopping rust. While you are waiting for this to dry, paint the rest of your undercarriage. I think it would be easier to just lift up the whole car on 4 jacks, and take off all the wheels and make a day of this. Most of it's just waiting for it to dry, but it's fun. Please read this Chassis Saver caveat when working with this stuff !!!