Paint peeling

We are having a problem with cross walks 24" wide. Have sprayed cross walks on four very heavy traveled intersections and lasting less than a week then peels off of traffic areas. Using Martin Senior waterbase paint that is manufactured by Sherman. Have Been using this paint for several years and had excellent results till now. The first time it rained shortly after we were done and we found glass beads washed 1/2 block down street so attributed to that. When we redone the job it was 70 degree and dry and did not rain on it for a couple days. We completed job last sunday and they are wearing off in less than week. We sprayed two coats with new Graco and applied beads in last coat. Is it possible the beads are breaking up the paint from heavy traffic and allowing moisture to enter. All our paint was delivered in June and we have been working from same batch with no problems. Would appreciate any suggestions any one can contribute. Milt

Clean off all the paint and start over. Powerwash it off, sandblast it, then use CR or a good oil base and let dry before letting cars on it. If that fails put down thermo

As wilth asphalt that is breaking down and releasing particulate, glass beads will definitely cause paint in high traffic areas to wear prematurely. Thermo is the only solution that I know of.

Cross walks have the worst environment to paint in the world of road marking. You have every automotive oil leak, plus anti-freeze dripped there every day. And now you want paint to cut through the oil and adhere to the asphalt or concrete. Tough assignment! Look at the underside of the flaked paint. if it is clean and slick the paint never "bit" into the substrate. If the underside is dirty and gritty, you either painted an unswept area (loose dirt) or the road aggregate consition is poor. I suspect it is clean and you may have to powerwash it with detergent to get good adhesion. I would also this a solvent based product would possibly "penetrate" better.

wonder why they don't make white asphalt??

Jimjack42, because then we'd be suggesting they look under the flaked black paint for traces of white asphalt.