Line-X Truck Undercoating

Anyone have any experience here? Didn’t realize they did this but found it when I was looking at vendors to coat my aged truck bed.

Our neighborhood constantly gets saltwater in the street during king tides so very interested for each my truck and wife’s SUV. Also, have to take the boat out of the water for service or a detail and would be nice to not worry about that as much.

 

I wouldn’t Line-X the frame. Instead, I’d stick with an oil, lanolin, wax, or Cosmoline coating. I’ve used Amsoil HD Metal Protect with very good results.

 

Lol—no, dude. It’s a different product by them for undercoating vehicles.

It’s not like they flip your truck upside down and spray it with the same shit they use on your truck bed.

Seems much more durable/comprehensive than the typical DIY options which is why I am considering it.

 

Don't use a rubberized undercoating, it will rot your truck out faster than having nothing because it will trap moisture under it where there are any nicks or imperfections.

As said above stick with oil, lanolin, wax, or Cosmoline coating.


https://youtu.be/H2VD5fM6pto?si=a2_pIUBWjqROrIfj

 

Lol- vsman is correct . Line x on a frame is encapsulating the frame which promotes corrosion as soon as moisture gets in between the frame and the coating. This is old news from the past.

 

Line-X undercoating is a rubberized asphalt type product. It’s perfect for keeping moisture under the coating against the steel frame. I’d stay away from it.

 

I’ll get the low down from them and report back. From what I’ve read, it’s oil or waxed based or cosmoline. If you could give sources for what you’ve purported, I’d be happy to read them.

You’re saying all these other products don’t do the same??? (Edit: guess they’re breathable)

If it’s entirely dried out, how does it trap moisture after application? Even if it did, where does the air come from to allow rust?

Update: I think I’m seeing it can vary on what they use. I’m hearing you want to find one that uses ValuGuard. That still requires some “conversion process” that costs more to address any extant rust ahead of time.

To be honest, I simply don’t have the time to do this so I need to farm it out to someone. If there are any other companies recommended to do it, I’d love to hear it.

 

I’d stay away from any of the asphalt type coatings or really anything that hardens. Like all that was said above……Toyota learned their lesson slapping noxudol on people’s 2nd gen frames and allowing the trucks to either still continue to rust apart or rust faster.

You can easily order some cans of a non-hardening coat of your choice and knock at least a basic coating out in 30 minutes. The inside of the frame in the boxed sections takes a little more time but at least you’d be using a product that would provide better protection.

 

I've lived in the heart of the rust belt for my entire life and have tried many, many different products to prevent corrosion. I will absolutely agree that all asphalt-based undercoating is a total waste of money and actually promotes corrosion in the long term. I will also agree that oil-based products are the only way to fly because the oil seeps into small spaces to displace moisture and prevent corrosion.

What would I recommend based on all of my experience? I'm a big fan of professionally applied products such as Krown, Fluid Film, Woolwax, etc. I'm currently using an oil-based system called Waxoyl on my 2021 4Runner and have been very, very impressed with it.

 

Nice, will check that out. Have a 6 pack of Woolwax sitting around but anticipated using that on the boat trailer once I redo that.

Sounds like there is a market opportunity for wax-based undercoating installers…

 

Just ask Linex if they’ll give you a 100% guarantee that salt water can NOT get behind the coating and cause rust for the life of the vehicle. I’m betting they won’t.

 

If that line x dries hard it can chipped by rocks/gravel allowing water to get underneth... not good.
I've done this on my 07 since new: Fluid Film on the frame/cross members, etc and Boeshield T-9 on suspension parts (less greasy, clear color, more of a waxy film that doesn't attract dirt/dust as much as FF.) Takes about a 1/2 hr to apply couple times a year with spray cans. After 18 years... original frame.

 

Looks fantastic.

 

Waxoyl -- been using it for 10 years on my first gen. It's the best product. Highly recommend it. I also hear fluid film is good but have not used it.

 

Looks absolutely awesome. One important question though: Where are you located and how much salt does it actually see?

 

Ok... full discloser. Live in a desert environment, no salt, 36,750 miles.

 

Ah, ask me how I knew that. You have no idea how lucky you are. Nice truck though!