Painting over gloss with eggshell

Hi I would always rub down woodwork with 120 grit sand paper to give it a ‘key’. Then there are two things to consider here. Firstly the oil based or water based question. Traditionally woodwork was painted with oil based paint. (Primer if on bare wood, undercoat and topcoat, rubbing down lightly in between coats with 240 grit sandpaper). It flows out and self levels better than water based wood paint and is better at hiding imperfections on the woodwork (therefore better finished product). Also, I believe it is more hardwearing than it’s water based partners. However it is smelly, needs 24 hours between coats to dry, and since legislation changed requiring manufacturers to reduce the VOC’s, many brands of oil based white topcoat yellow over time, especially in areas of the house with little natural light. The water based ones will stay whiter longer, can wash out with just water, not smelly and can recoat in 4-6 hours. However, they do not cover as well, sometimes requiring more coats, and you may struggle to lay off the paint ( take the brush strokes out of it to give you a nice finish). Secondly, if the wood was pre painted then you don’t need to prime it. If you decide to paint over your previously oil based paintwork with water based though, please make sure you put a primer on it first because if not it may not adhere properly and will chip and peel easily when bumped in the near future. Eggshell in both oil based and water based are self undercoating so negate the need for a separate undercoat. Two coats of either should suffice. However, I would use a separate primer/undercoat if you were switching oil to water just to be on the safe side. Long answer I know but lots to consider when choosing the right paint to paint your woodwork today.

just sand down and clean the surface then apply eggshell with self-undercoating...il go with waterbased on the interior

Sand down wood yes, but always undercoat (acrylic/ water based) fine. I don’t believe there is a water based self undercoating gloss though, ..that’ll be the oil based. So I’d use the dual coat system of acrylic primer under coat followed by an acrylic gloss.

sand it down making sure most of the old glossy shine is gone. Fill any imperfections and sand back,(spot prime those areas.)It's best to always undercoat, you will get away with just top coating ,perhaps using Dulex eggshell water based. I believe it's self undercoating.however...it's not as effective as undercoat.I prefer to use water based for indoors,both undercoat and topcoat.so a long story short.Either will work,but best to undercoat👍🏼

Hi Mentyplay87, Your 'current gloss look' is already finished work so you wont need any primer. A quick sand and coat of Eggshell will work a treat. This would be oil based so will take a while to dry although you can apply a drying agent..ask at the hardware store. Good luck.