I am not impressed with all the research I did on Ziebart. I am in Michigan and found a shop that uses more of a oil/wax type rustproof. I have a 2000 with NO rust at all, and they will guarantee no rust for 50,000 miles or 3 years on my TJ. Bad news is that they have a 5 month backlog and cannot do it until Jan 2014. With a 5 month backlog, they must be really good!
I have a 79 Fiat that I bought new and had it undercoated with Ziebart. No rust, but I would never do it again. They drilled holes in the doors and every other panel then put rubber plugs in. It sits overnight while the excess drips out then the rubber plugs are installed. I have power windows and had to take the door apart and what a mess inside the door. Pulleys and motor had errant spray on them. If the car sat out it would hold water. This car has never seen snow and rain maybe 10 times in 35 years. All bolt heads have to be cleaned to get a wrench on them.
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