Jump to content

Best Undercoating?

frenchsquared
 Share

Recommended Posts

frenchsquared Enthusiast

frenchsquared

Posted
Posted

GM says that our trucks don't need any type of under coating. They are likely correct for the 3 yr warranty period. Some people like me want to keep there new truck for many years. So what does everyone feel is the current best rust protection? I have been thinking about spraying the underside of the truck with oil ever few years. I thought it was a crazy idea but I have seen talk of this in other threads. Personal experience has shown me that old trucks the leak a lot of oil tend to have solid floor bards. The steady oil leak stops them from rusting. 

 

Im not sure if a spray on bed line will stick on top of the coating the factory added. 

 

Whats is everyones thoughts? 

  • Replies 46
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

NWI Denali
NWI Denali

Rule #1 about dealerships... do not believe anything a salesman says. They are beyons clueless about their own product they sell.

BlueSilvyZ71
BlueSilvyZ71

Krown, everyone out here in Atlantic Canada has that as their go-to.

Doublebase
Doublebase

Anyone ever try Fluid Film? Pretty popular in my area. It's a lanolin based product, you can buy it by the can or by the gallon. Just spray it right on. Works pretty good.

Brown4x4 Enthusiast

Brown4x4

Posted
Posted

I like to keep my trucks for many years too. I have had Krown undercoating done in Upstate NY the last two years and I am very happy with it so far.  During the winter I will rinse the undercarriage a few times but no pressure washing.  Spring time I use a sprinkler to wash the undercarriage and rinse out the frame.  Then touch up areas with an aerosol can of Krown.  So far my frame looks better than other trucks in my area.

Brown4x4 Enthusiast

Brown4x4

Posted
Posted

Also this past winter I have tried Salt-Away concentrate in a pressure washer reservoir to rinse off plow and trailer.  Seems to do a good job at removing the salt.  I will use it on my truck undercarriage this spring if this winter ever ends.

Doublebase Enthusiast

Doublebase

Posted
Posted

Anyone ever try Fluid Film? Pretty popular in my area. It's a lanolin based product, you can buy it by the can or by the gallon. Just spray it right on. Works pretty good.

  • Like 1
1940ModelB Enthusiast

1940ModelB

Posted
Posted
8 minutes ago, Doublebase said:

Anyone ever try Fluid Film? Pretty popular in my area. It's a lanolin based product, you can buy it by the can or by the gallon. Just spray it right on. Works pretty good.

Word has it Fluid Film dissolves the wax coating GM uses on our frames and takes a bad situation and makes it worse.

  • Like 1
sdeeter19555 Senior Enthusiast

sdeeter19555

Posted
Posted
Word has it Fluid Film dissolves the wax coating GM uses on our frames and takes a bad situation and makes it worse.
I can vouch for that...the heavy bodied Fluid Film caused the coating on my 2012 to shrivel and peel off in big sheets.

2012 2500hd 6.0l CCSB 4wd
badge171 Enthusiast

badge171

Posted
Posted

Eastwood supply. quality stuff, spray can, gallon , rubberized . Makes the frame, exposed metal look new, touch up is easy, 

frenchsquared Enthusiast

frenchsquared

Posted
  • Author
Posted
26 minutes ago, OldBlue61 said:

I had mine Ziebarted.

That doesn't look like rust protection. It looks like a paint protectant. 

sdeeter19555 Senior Enthusiast

sdeeter19555

Posted
Posted
That doesn't look like rust protection. It looks like a paint protectant. 
Nah, they were originally a undercoating...they use wax on body parts and rubberized elsewhere. I had a truck with it one time, it has is pros and cons.

2012 2500hd 6.0l CCSB 4wd
aseibel Senior Enthusiast

aseibel

Posted
Posted
18 hours ago, Doublebase said:

Anyone ever try Fluid Film? Pretty popular in my area. It's a lanolin based product, you can buy it by the can or by the gallon. Just spray it right on. Works pretty good.

Fluid film is supposed to go on bare metal. the instructions say not to get it on rubber as it can harm that. I don't know if I would use fluid film over the existing coating. But for bare steel? it works great. I put it on my plow in the spring. 3 years old, it looks like brand new yet.

adamj2121 Enthusiast

adamj2121

Posted
Posted (edited)

Most undercoatings tend to not adhere to the factory GM wax, or so I've been told. I actually stripped the wax from my truck and had a Line-X undercoating professional sprayed. The Line-X isn't bad, but if I was doing it over again I would probably just strip it myself again (can't find a shop willing to do it) and spray with an aerosol undercoating of my choosing. I personally like the 3M undercoating, but have seen very good reviews on similar products from other brands too.

Edited by adamj2121

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,739
    Total Members
    8,960
    Most Online
    JimmyB4
    Newest Member
    JimmyB4
    Joined

  • Who's Online   1 Member, 0 Anonymous, 656 Guests (See full list)

  • Latest Articles

  • Posts

    • Another JR
      Trim level custom/pro

      By Another JR · Posted

      Are you going to take long trips in it?  If so, try out the seats in the various trims. For me the lower trim level seats were not comfortable. 
    • mikeyk101
      2014 - 2018 Chevrolet Silverado/GMC Sierra

      By mikeyk101 · Posted

      I have a 2016 that I bought new and still own. I'm around 129,000 miles now. The biggest problem was a transmission failure about 2 years ago around 95000 miles. No warning, just failed while driving down a back road. A reman GM transmission installed and it's been fine ever since. A few other minor problems along the way. I am in no hurry to replace it. It's been paid off long ago and do plan on driving this as long as I can.   I will admit I am leery about all the additional electronics in the newer models and feel that it is just more potential problems. I think there's actually more than I would have wanted in this 2016 but so far so good. I think even if something major like lifter failure happened, it would still be cheaper to at worst, drop a new engine in than buy a new vehicle. 
    • KARNUT
      OCI, not when but why?

      By KARNUT · Posted

      I’ve own several successful businesses. I’ve bought homes and lived in different states. I’d witness several generations buy homes and survive in different economic circumstances. You get awful sippy when people have different experiences than you do. You live a life. I’ve lived a life. It seems our experience has been different. You can point out generalized statistics. Some people learn how to thrive when the odds are against them. Living in different states does make a difference in a persons quality of life and economic outcomes and opportunities. That’s a fact Jack. It’s my truth, my life. Hard work and long hours the right environment made my families life easier. And yes moving to a different state increased the odds of that happening. Stats are generalized. People who thrive don’t make excuses. They beat the odds. Others get mad and point to those statistics. I guess that’s you. My post pointed out how you helped people beat the odds. Somehow your panties got in a wad. Go figure. 
    • MrChips
      Road Master Active Suspension

      By MrChips · Posted

      Good question, I don't remember for sure but I believe it was the HD. I will check and get back to you.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Point of the post sir was that while both wages and cost are rising EVERYWHERE; the cost is rising faster EVERYWHERE than the ability to buy EVERYWHERE. We're not going down the location rabbit hole. I'm aware of what economic migration is. I've lived in four states including Texas.   It's what "Purchasing Power" means.   I'm not telling you what I think. I'm telling what the government, your government, data shows.   It wasn't an argument. It wasn't a suggestion. It was a statement of FACT. You are absolutely entitled to your own opinion. Your not entitled to your own facts. If you and I were, they wouldn't be facts.    fact /făkt/   noun Knowledge or information based on real occurrences. "an account based on fact; a blur of fact and fancy." Something demonstrated to exist or known to have existed. "Genetic engineering is now a fact. That Chaucer was a real person is an undisputed fact." A real occurrence; an event. "had to prove the facts of the case." The American Heritage® Dictionary of the English Language, 5th Edition • More at Wordnik   If you'd like to disagree call your Senator or Representative and let him know his departments are in error. But you and I? We are not doing this. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...