ObsidianBl

it should be under the driver side door. Let me find the video.

edit:
Go to the 2 minute mark on this video

MarkVII

Great! Thanks!!

MarkVII

Done, that was an easy job. It's got a good FF coat on it now.

bbqsoup

How do you clean the bottom before you apply? Do you wipe down all the dirt and dust with a rag?

MarkVII

When I did the entire underside, I hit it with my power-washer, used air to blow the water away, left it sit inside over-nite, hit it with air again, then sprayed on the FF.

Just for the kdss control actuator, took the plate off, sprayed it with Meguair's all purpose cleaner, hit it with a wheel barrel brush, blew it dry, the used a can of FF to coat it.

william489

I need some advice, I already have surface rust on my GX underbody, would anyone suggest to apply some rust converter first, before applying FF?

I did FF (aerosol can, not airless spray) last year for rusty area, I am not sure how much it helped, just my personal experience, it may be related to how I applied.

I found this amazon ( ), it seems it has good reviews.

Thanks.

dumbastard

When I get a new GX, I'm planning to do a whole underbody coating job by myself.

I'm going to:
1. lightly sand with 400 grit paper, then
2. apply Eastwood Rust Encapsulator Platinum, let it dry,
3. lightly sand with 400 grit paper again,
4. Spray Weicon Rust Protection 2000 for black finish (This spray provided 2000+ hours of protection under salt water testing)

For inside of the frame, I'm going to spray Eastwood Internal Frame Coating
And for the rotating parts, I will spray LPS3 on a sponge and apply it to parts from there.
Of course, I will avoid spraying anything to parts that get hot.

This is the best method that I was able to come up with after hours and hours of research.
It will take me a long time, but I just want to get it done right when the truck is new.

LexMan1

Back in the day, farmers would oil the underneath of their cars / trucks. I use a product called "Fluid Film" that is Lanolin based and stays on real good. It stops oxidization from continuing to occur by providing a coating. Like WD-40, but adheres much better and much longer

ivanj

In Vermont one can still get that done if you look around. That's why there are so many old Volvos up there.

LexusGXFan

Corrosion X HD

nothing better for long term protection.

Zivman

Ive researched and some say bioshield t9 is preferred... regardless, fluid film, bioshield, and corrosion X are all good

william489

A few days back, I used a Wagner power paint plus (airless, 2200 psi per their spec) to apply FF, the tool is great, a bit heavy, but has enough power and spray nicely. For folks who don't have air compressor, this is a good option, Lowes has it on BF sales for like $50 then.

NewB2Lexus

Has anybody applied rubberized coating to parts of the undercarriage, wheel well maybe? Is it recommended to put something more durable to certain parts or just stick with Fluid Film and re-apply yearly?

LexusGXFan

I would not recommend any rubberized coatings.

Corrosion X HD or the thicker version of FF in the high wash areas.

MarkVII

Yea, run away from anything rubber based.