Hi Hussyk,
Thank you for reviewing Behr Urethane Alkyd Semi-Gloss Enamel. I'm very sorry to hear about the water-mark and adhesion issues experienced. That's not the performance we've come to expect from our products. I completely understand your disappointment and would love to help.
I recommend scuff sanding the affected areas before cleaning and touching up by feathering outward with a brush to blend in the paint.
Please contact Behr directly for further assistance with this matter. We'd love to turn this experience around.
Kindest regards,
Doris