About 5 months and 5 washes later... This stuff seems to just keep beading. The car is a garage queen. The reason for so few washes was that we were getting a lot or rain here in So Cal for a while so it really didn't make too much sense to constantly wash it. This is on the plastic bumper which has a pebbled surface. 2 cured coats on all the external trim and showing the same results.