Brake caliper lacquer foil Tec – does the TÜV cause problems?

Hi! I ordered the brake caliper varnish from Folietec at ebay in red. Now I have to go to HU and AU on Tuesday and wanted to ask if the TÜV has something against it? And can I install the brake system on the car without disassembly? Has anyone ever done this before? Is that enough for 4 brake calipers plus the 4 x the distance between the brake disc until the rim is attached? Greeting