Doylestown Auto Repair

How Audi Etches its Side Blades

How Audi Etches its Side Blades

Late last month Audi revealed that R8 buyers could gain an extra degree of individualization with a new etching process that carves just about any design into the R8’s side blade. Now Audi’s UK press office has helpfully given us an insight into how the process works.

A string of tweets sent out this morning shows how the process of etching works. Although it looks a little  labor intensive, it also looks remarkably simple.

The process starts with a a plastic film that has the desired design cut out of it. Someone then cuts the film to size and it’s ready to go on the side blade.

Next the film is stuck onto the blade and steam is used to make sure that it’s well truly on and that no air bubbles are trapped under the film. Side blades may be small, but they’re made of carbon fiber, so screwing this up has consequences.

Then the blade is placed in a chamber where it can be blasted with a fine powder. The powder roughens up the lacquer, creating a matte design. Even though the design is etched into the lacquer, it has no appreciable impact on the longevity of the blade, because the design is less than a tenth the thickness of a human hair. Essentially, it’s just modifying the brilliance of the paintwork.

Finally, the masking is removed and the side blade is cleaned up and ready to be fitted to the car. Audi says that they can etch just about any design with this process, not just letters and words.

Audi says that it  eventually wants to introduce this process to more cars in its lineup, so you may eventually get to etch any Audi you like, just remember that resale value might be affected by the giant picture of your face on the hood of your A4.

The post How Audi Etches its Side Blades appeared first on



February 7, 2017 at 03:21AM

Leave a Reply

Your email address will not be published. Required fields are marked *