I painted some Spenner blades then Houston automotive clearcoat. The blades sat around for a couple weeks so I know they had enough time to dry. I put them in a glass water for 48 hours when I brought them out I could take my fingernail and chip the paint and clearcoat. Does anyone know what could of went wrong? Is there an automotive clear coat that you guys would recommend trying. Should I be using a different kind of paint this application? Thank you for any suggestions and help!