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Rustproofing

23K views 29 replies 15 participants last post by  Bradley94  
#1 ·
I am taking delivery of my 2022 Venza Limited within the next week and I'm torn about rust proofing it. I plan on keeping this vehicle for a very long time and I live in a place with terrible winters and salty roads. I'm wondering if I will have issues with Toyota for the warranty, as they claim that it could be voided since there are lots of "sensitive" parts of a hybrid vehicle that should not be rustproofed. Also, the undercarriage of the Venza is covered with sound deadening plastic or some type of cover that would negate the effect of the rust proofing as there doesn't look like there is much they can hit with the rust protector. I plan on using "Corrosion Free" as it has worked well on my wife's Honda Civic and it doesn't drip and is clear.
Any thoughts or suggestions are welcome as I really want to have this done but not have to pay for a repair that might be caused by using this.
 
#2 ·
I have a 2021 Limited. I have applied Ziebart rustproofing, sound deadening and ceramic paint protection. I have used Zeibart for almost 40 years. I am still driving a 1993 Ford F150 that was done by Zeibart and you would be impressed by the condition it is in today. My thoughts are if you're going to keep your cars 5 years or less... save your money. It's not cheap to do. I believe my total bill was around $1,300. Most of it was the ceramic coating. Which is totally amazing. It stays so, so much cleaner with the ceramic coating. But I take mine back every year for the maintenance which you need to do to keep your warranty. I believe if it is done correctly and maintained it is a worthwhile investment. But I'm pretty anal about the way my vehicles are taken care of. I live in southwest Ohio where they use lots and lots of salt in the winter.
 
#15 ·
This is an interesting statement to make and then ask others to confirm it for you? Please show me just one statement from any hybrid manual that makes this statement. We own a 2017 Ford C-Max Hybrid and the 2021 Toyota Venza. Both have been done by Ziebart. Neither of these manuals make any such statement or even mention undercoating or rustproofing at all. I will state again. If done properly it will not void your Toyota factory warranty.
 
#8 ·
The important areas of any vehicle to get rustproofed is INSIDE front fenders, rear quarter panels, rocker panels, all doors. This is where your cars are most likely to rust because water and salt get trapped. I received my Venza in Oct of 2020 and it was the first new model Venza my Zeibart had seen. They would not proceed with doing it until they found out what areas to stay away from. I also want my front windows tinted. But Zeibart would not do it because in their investigation of the new Venza they found out about the special coating on the inside of the windows. The point I am making is Zeibart checked with Toyota before they proceeded to do anything. I would never let a dealer rustproof a vehicle of mine. Not their business.
 
#9 ·
the corrosion free RC3K is supposed to be safe for electronics, I use it in areas on my truck that are not exposed to heavy direct road wash
its easy to remove without the need for a harsh solvent and has no odor other than what burns off of overspray on exhaust parts LOL

as far as the undercarriage I am not well-versed on what the underside looks like, do you have any pics of what you're dealing with? where are the 'hidden' cavities?,
any exposed metal areas underneath such as brake lines, fuel lines, suspension parts, etc should be covered and protected for the longterm to increase its re-sale value if anything
 
#11 ·
I had mine done at the same place that the dealer would have taken my car to, had I bought the rustproofing from the dealership.
I went straight to them and got a much better deal for the EXACT same procedure.
Nothing about not having it done on hybrids or whatnot.
Canadian east coast here. Salt all around during winter
 
#12 ·
i am curious. what kind of product was used?
 
#16 ·
is this what Ziebart stuff is?
 
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#22 ·
I hit one of those car washes that do the under car wash. I’ll do that a few days after they fall the road.
Look at for vehicles that are in front of you and see if the muffler is black. Too many times I see mufflers black but have all the chips in them. Seems that rust protection burns off anyway.
 
#24 ·
we rustproofed our 2021 last year with Krown…we live in the salt,calcium, road spray,sand, and you name it road conditions in winter..we went back for the yearly inspection and any reapplication that would be needed …inspection yielded no rust or anything under the vehicle…even after taking a look at all connections and under/over the plastic that’s under the vehicle…it looked just like it looked when we first treated it a year earlier…so there were no issues…
btw the AWD in snow did very well…no issues no getting stuck or anything…(of course we replaced OEM tires last year and went with destination all seasons…(of course,Venza could not hold up to what my FX4 had to go through just because of venza lower clearance…
 
#26 ·
In 1990 I bought a brand new Bronco. Drove it (on a bright, sunny summer day) straight to Zeibart for a full undercoating. Within 5 years there was rust on the lower door panels, the lower tailgate, rocker panels, etc. I took meticulous care and always washed it by hand, at least once per week. I have an '06 Corolla that never had any optional rust proofing, is kept outside all year (NY) and has over 360K miles. No rust... Go figure.
 
#27 ·
This is exactly why I use wax on our vehicles. It does not do any damage to any components of concern, like rubber, plastic, connectors, wiring, or anything else underneath of the vehicle.

I do not abide oil at all, for the exact reasons laid out in the Tech Tip link shared in the thread. I have seen the damage that continued use of oil can wreak on bushings, the OEM applied sound deadening, and even paint that leaves the substrate due to a rock impingement providing a starting place for oil to begin to delaminate the coatings.

I even had a Porsche that was "protected" with Ziebart about 20+ years ago and found that the OEM deadening was coming right off of the body, creating more cost to repair than the treatment likely cost! I will say, the oil based products do work...but they come at a price.
 
#29 ·
I was told by the salesperson and the service manager that it would NOT void the warranty, as long as the application is properly applied. I'm still considering Krown Rustproofing, but now thinking I would only have it applied to the lower doors (they can't do it higher in the doors anyway bc of the supplemental side restraint airbags) and those boxed in areas where rust usually forms. I'm not going to have the underbody rustproofed, as one poster pointed out, it's all covered for unrestricted air flow, and even if it wasn't Krown would wash off with a underbody car wash flush that any good car wash does. The Krown technician showed me on their computer that every vehicle they undercoat/rustproof has a schematic which shows exactly the location where the small holes are drilled for wand access to apply the spray solution. Krown is much cheaper that Ziebart and has good reviews from both customers and testing agencies. Just my two cents.