Hi, do I need to put a top coat on my painted kitchen cabinets?

Rosemarie, do you mean, say, polyurethane? I was advised by Sherwin Williams when I decided to paint my kitchen cabinets 5 years ago, not to put any top coat on, that it simply wasn't needed if I prepared the surface correctly. I used Krud Kill first to de-grease them and then lightly sanded and used Sherwin Williams satin finish white. They have withstood perfectly!

Lightly sand (320 grit) and apply fresh coat or if Color is fine and you are leveling the finish out, use a water base poly.

At least three coats of a water based polyurethane. Sand lightly in between coats. Use a foam brush for a smooth finish. It will protect the paint and easier to clean the cabinets.

My daughter just painted her cabinets. She bought paint at Lowe's made just for cabinets & no sealants were necessary.

I may have to check that out!

If it is a Satin finish and wipeable then No! If it is a Flat Matt Paint - then YES otherwise it will pick up DIRT AND GREASE.