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Recently updated on October 27, 2020 at 03:13 am
Again and again we receive inquiries regarding the powder coating and repair of car rims but also of motorcycle rims. It is and remains a big issue and there are countless rumors and false information on the net. For example, may the rims made of cast iron or wire spokes be subsequently finished with a powder coating? Yes! But there are Dekra and TÜV guidelines that you should first know, before you can refine the rims perform. After all, it has already come to vehicle shutdowns as cars or motorcycles have come with a subsequent rim finishing in a police check.
Standard powder coatings
If the rims are powder-coated as standard, there will be no complaints at all, even when the vehicle is checked. In the case of subsequent embellishments, you should be informed in detail beforehand. Especially when everyone can see that the surface has nothing to do with the series. DEKRA is mainly known here for decommissioning cases. She sees the subsequent powder coating as a kind of repair on the rims, which is not permitted, according to a technical report from the Federal Ministry of Transport, Building and Urban Development. And also in many Internet forums it is claimed again and again that this was the reason for the shutdown of the car. A repair that interferes with the structure of the material, or that involves reshaping or heat treatment, must be refused as a matter of principle. That is understandable too. After all, the rim is weakened at the deformed point and therefore a safety risk. Subsequent welding of a cracked rim is also not permitted. The original material structure is changed in this case, which is also the case with a recovery by means of heat treatment. If a rim has been repaired using a “mallet method”, the wheel no longer corresponds to the wheel strength that is noted in the original documents for the aluminum wheel in question.
More information about DIY repair of rims
An afterthought embellishment the rims, which are undamaged and original, are not covered by this regulation. After all, such are embellishments no repair, in which the rim substance is acted upon. TÜV-SÜD also defines optical processing very clearly and clearly. This is about the professional regulation of the rim optics by polishing, priming, painting and notch rounding. According to the TÜV-SÜD is a refining an undamaged and original rim none Processing a wheel damage. Logical! And “light cosmetics are also allowed”. After all, you cannot dispose of a rim straight away just because it got stuck on the curb.
Nicks and scratches in the base metal up to 1 millimeter deep can be legally removed. A scratched aluminum rim can shine in its old shine again with a TÜV-tested procedure. The "WheelDoctor" method removes abrasions and corrosion damage and the aluminum rims can then still be used legally in road traffic. If you prepare a rim with the rotary grinding process, this is done not intervened in the strength. Alloy wheel preparation with the WheelDocor process is carried out by almost every paint shop. And from our own experience, we know that even with 1,5 or 2 millimeters of scratch depth you do not have to worry about having to dispose of the rim.
Impermissible heat treatment of rims
For repairs and preparations of rims and the baking of powder coatings the admissibility is often discussed. However, these methods can not be applied to the subsequent refinement of an original rim that is completely undamaged. The directives of DEKRA and TÜV-SÜD always only refer to repairs and reprocessing. Embellishments are not included in the guidelines, so there are no technical messages.
And finally ... Basically, the whole problem concerns only rims, which are made of aluminum. In that regard, for example wire spoke wheels are completely excluded. There are no technical reports on powder coatings and other finishes on wire spoked wheels. The beautification measures concern forgings and cast wheels. When inquiring about the admissibility of these finishes should in our opinion simply not by a preparations be spoken. This is namely a repair of a rim and has nothing to do with a refinement. Refinements are legal and can be carried out. The vehicle cannot therefore be shut down. Processing, on the other hand, is subject to the above-mentioned and sometimes very strict guidelines. Anyone who uses the word "Refining“Argues, there is generally no need to fear vehicle shutdown. However, if the rim is repaired as in the following video, it is ready for use on the road CAN'T more suitable.
Of course that had not been the case.
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My friend is actually interested in everything related to cars. I don't know anything about it. That's why I wanted to find out a little bit about rims. I hear powder coating for the first time, but looks great! Good to know that as long as they are coated as standard, there will be no problems with a check! Thank you!