Best undercoating?

What do you guys use? Rustcheck? Krown? Actual undercoating thick non drip stuff?

 

I just got mine done from the dealership when I bought it. I dont know if it's the best or not, but certainly the easiest.

 

Ya thats the non-drip stuff. A guy I know runs a shop up here and charges 400+tax but will do mine for 200. Suppose to last 10 years on a new car and 5 on a used. I just see alot of people with rustcheck and krown, but i dont wanna spend the 100-150 every year

 

i prefer to use Krown for rust proofing. i have seen photos of vehicles and have had friends tell me to avoid the thicker products because they 'hide' the rust from you.

 

didnt think of that. I just dont like how krown and rustcheck are so messy

 

Is someone tried Bed Liner or Ez Liner products?

 

krown only drips for a day or two if you get it done in the summer

 

krown hands down! My last truck you could still read the sold barcode sticker on the frame when i got rid of it after 10 years. Almost NO rust for a vehicle driven 12 months/year.

 

I don't know the best but I'm going to try CorrosionX. Anyone else heard of this?

 

I got mine done at the dealer when I got the truck. It's the thick goopy crap that was like tar.

 

Just get a couple cans of Fluid Film. It's clear, doesn't completly harden, and has excellent reviews. I like the fact that you can still see everything underneth. I'm a firm believer that the thick rubber-like stuff will cause problems down the road from water getting underneth from cracks and holes caused by rocks that get thrown from the tires. Wear a mask when spraying... the stuff will give ya a good head rush.

 

Had my truck done at the dealer a couple years ago when i first bought it. The stuff seems like a rubberized undercoating of sorts. This stuff doesn't seep into spots like Krown or Rustcheck would. After talking with the dealer, apparently if i miss a yearly inspection my rust warranty is void. Since i have a hard time remembering my gf's bday i figured i may as well just Krown rust proof it.

Used it on my last car, and after 8 years there wasn't a speck of rust on it. This stuff works!

 

corrosion free Rust Cure, does anybody use this stuff for long periods with pics or comments?

https://youtu.be/iz6SPNJY5E0?t=8

https://corrosionfree.com/

is the HQ in Toronto? i am having trouble finding from their website where exactly they are located

 

Undercoating guide 101 (IMO)

Never, ever put a product that hardens on. In our Canadian climate and freeze/thaw cycles with road salt this is a recipe for disaster. Corrosion and liquid get behind these coatings and will accelerate the corrosion process as the water and brine get locked between the factory finish and these coatings.

Krown and rust check are good products AS LONG AS YOU APPLY YEARLY. The consistency of these products is its double edged sword. They have the consisteny of water and will creep into the smallest crevices and cracks, BUT will also remove themselves in exposed to element areas simply as a function of their design.

The BEST products are the no drip oil based amber undercoatings (similar to fluid film). I use a product from napa (name escapes me) it sprays easily with an undercoat gun and doesnt drip. It continues to creep after application and has a much better retention rate than watery products. During the cold it firms up much better so application during warmer months is advised so it creeps.

20 years undercoating vehicles ive seen and tried everything.

And for the love of god if you go to krown or rust check DO NOT LET THEM DRILL YOUR PANELS to apply the product. The same application can be done through factory seams and access points.

 

excellent advice!
the local krown applier here in central USA told me he was going to need to drill my doors and i just shook my head and quietly walked away
i have really super nice doors i think from slaving every winter 2+ decades to keep em clean!

just some water spots and dusty on black

 

There is ZERO need to drill anything.

You can access the entire inner door panel from the top plug and the bottom 3 drain holes. I remove my door panels once every 2 years. it takes 5 minutes per side.

Rockers and canlb corners are accessible through the factory rubber plugs! Easy breezy.

 

first time using fluid film. Ive heard good reviews. I'm going to apply it twice a year. hopefully that works

 

twice a year app sounds pricey!?

and i still am not sure how that stuff sticks to any metal parts??

this other product I am testing out in the mid west, CF 3000 formula, has a chemical makeup to adhere like a magnet which i think is pretty cool!
it just slithers around upon application, pushing it to where i need it to go into crevices and that. does require an air compressor though that some may not have access to




a little bit tested out on the frame with the recent road chemical spray on unprotected part just to see the stuff in action



FF looks similar on the other side of truck, comparing the two products to see what the bitch likes
but there is definitely a ton more of roadspray on the un FFd area
maybe the CF 3000 misted better and/or crept down for better coverage,
still a newbie at all this

#hardcoretacolife

 

this will be next on the list to try if not happy with the durability of what i am now testing

this and woolwax


FF looks to have failed the test in Minnesota in a controlled experiment