There are a lot of factors that can make paint on parking lots look grungy. We have had projects where the white, yellow and red fire line grunge out. Air dust is a big violator because it will stick to newly sealed lots and then picked up by tires and tracked over stripes making them loose their luster. If you have a client that is questioning the dull or grungy stripes, take a bottle of water, wet a spot on the stripe and gently scrub it with a brillow pad. Once you have done a few passes, rinse with the water in the bottle and the cleaned area will be bright again. This will show how grunge will build up on stripes. There is always a very thin petroleum slick on the surface after sealing, slurry sealing and paving. This thin slick attracts air dust which will be tracked on the stripes making white stripes turn gray and yellow and red stripes dull out and look grungy
Tom McDonald
PMIS, Inc.
