Have the Felgenversieglung the Winterräder treated. Sealing is very fluid and tends at first applied to freshly cleaned Rims highly droplets inclination. Top with small Apply very thin sponge, then let the Residue after drying polish easier. Have it for applied in 3 layers. To effect: On smooth surfaces of the wheels is the Brake dust better than me away again with Kärcher or sponge, yoy. untreated state is a real improvement, but put in the spandrels at the junction spokes / bed nevertheless yellowish deposits, which far more Cleaning effort mean. This also has the consequence that there is the seal again with scuffs and new must seal, which is very costly. Tends to a good product, but not perfect.