The door has been painted with white oil-based wood gloss paint over the past 15-20 years (See first image). In the past, I would just paint over it which worked fine the few times I did it.
Now I want to switch from gloss to satinwood paint, I've brought Dulux trade satinwood white. From my research, I understand it's not possible to just paint on top of the current gloss paint so I started to sand down the door. See before and after image:
- Do I need to sand the door down 100% where the is no paint left?
- Can I just sand down the first layer so the gloss paint is semi removed and then paint over it?