The most successful paint finishes are those where the surface was prepped correctly, manufacturer's directions followed, and the paint applied under the right temperature and conditions.
Here's some tips to keep in mind before painting a surface:
      1. Surfaces must be clean, dry and dull.
      2. Prep correctly and take the time to sand.
       A 5-10 minute sand with a medium grit
sandpaper, then wipe the sanding dust off.
      3. Prime if required.
      4. Use high quality brushes or rollers.
      5. Paint takes time to cure, so be gentle for 3 to 4
weeks.