Hi, was hoping someone could advise... I recently painted wood/veneer and melamine units and disappointingly the paint scrapes off really easily which is obviously not ideal in a kitchen. I cleaned them with sugar soap, washed off, then did two coats of a primer specifically for kitchen cabinets made from any material. Sanded lightly between coats. Then I used Dulux diamond eggshell trade paint which I was told would be very durable. Can the quality of primer affect it? Is it because I didn't use an undercoat? Argh, please help!