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Wax coating comes off easily?
- Andy2640
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Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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There are special underbody wax products (a much thicker and stronger type of wax, sometimes even mixed with bitumen) which have much better resistance, but still not nearly close to being impervious to the effects mentioned above.
An example of such a product is Car System KS-800.
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Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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- Andy2640
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Bosanek wrote: Intolerance to strong water jets and strong detergents is a typical characteristic of wax coatings. That is their main weakness. Therefore, wax coatings are best suited for cavities and other surfaces where there is no risk of abrasion, strong chemical contact or strong water jets.
There are special underbody wax products (a much thicker and stronger type of wax, sometimes even mixed with bitumen) which have much better resistance, but still not nearly close to being impervious to the effects mentioned above.
An example of such a product is Car System KS-800.
You guys really know your stuff, which is excellent as a jimby noobie like me. The forum is a gold mine of knowledge, so thanks to you all.
Yes your spot on, because ive only just realised what ive been doing.
When i use snow foam on the bodywork, ive also been foaming the wheel arches, so that makes perfect sense. God damn it!!
We live n learn. Some slower than others
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- Andy2640
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I'll go have another looksie on me dinn dins break.
Thanks Lambert. Missed ya so i have.
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Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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- CC Baxter
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Jet washing every week? Perhaps a bit of wash 'n' wax and the garden hose now and again. There used to be an argument for not keeping a car too clean. A bit of waxy stuff left on top and road film ( a mixture of road tar, diesel and tyre rubber) underneath is no bad thing. If you live in a high salt aera forget all this.
Chris
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Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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I power wash the underside of my car quite often and even more often during winter because of the road salt.
I have spent a lot of time this year to determine which type of underbody coating has the least weaknesses, and have not yet come to a definite conclusion. I have however conclusively determined that all bitumen or tar based coatings are a big NO for multiple reasons, and that waxes are great except for the before mentioned weaknesses.
For the time being, I coated the less exposed areas of the underbody (where there is only a small chance of those areas being sprayed or abraded directly with anything) with an underbody wax (not a cavity wax), which is thicker and more resistant to being washed off than a cavity wax (but has a lot worse creep characteristics). I have yet to determine with what to treat the exposed ("impact") areas.
Super hard polyurethane bed liner coatings like Upol Raptor are becoming increasingly popular for underbody protection, but I am not yet convinced. First, they are quite expensive, and second, they are very hard and relatively brittle (compared to other types of underbody coatings), which could cause them to crack upon stone impacts.
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