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Our mechanic mentioned signs of rust on the steel frame under our 2012 Opel Ampera.
The manual says Bitumen based undercoatings can damage the original pvc/wax protection. So I went with Teroson WX980 which explicitly says that it is compatible with pvc/wax.
I could not find any other product with that explicitly stated compatibility with pvc/wax undercoatings. Most products are bitumen/asphalt based. I couldn't find any of the products recommended by GM for sale in Europe.
I started removing rust with a drill driven crimped wire cup brush.
I found it very difficult to remove all the rust. So after removing only the loose rust on some of the more accessible areas I just sprayed on the Wx980 anyway. An additional layer after a couple of hours. I'll check the status next year and report back. Our roads are heavily salted during winter.
I also noticed that the plastic undercover on the passenger side had thick layer of gravel and debris on top/inside.
Has anyone attempted some kinf of rust protection for the undercarriage? Has anyone tried applying cavity wax?
I am a bit bewildered by researching rust protection methods, as there are so many different opinions on what products and methods to use.
The manual says Bitumen based undercoatings can damage the original pvc/wax protection. So I went with Teroson WX980 which explicitly says that it is compatible with pvc/wax.
I could not find any other product with that explicitly stated compatibility with pvc/wax undercoatings. Most products are bitumen/asphalt based. I couldn't find any of the products recommended by GM for sale in Europe.
I started removing rust with a drill driven crimped wire cup brush.
I found it very difficult to remove all the rust. So after removing only the loose rust on some of the more accessible areas I just sprayed on the Wx980 anyway. An additional layer after a couple of hours. I'll check the status next year and report back. Our roads are heavily salted during winter.
I also noticed that the plastic undercover on the passenger side had thick layer of gravel and debris on top/inside.
Has anyone attempted some kinf of rust protection for the undercarriage? Has anyone tried applying cavity wax?
I am a bit bewildered by researching rust protection methods, as there are so many different opinions on what products and methods to use.