I have two typical steel entry doors that were factory primed. They were installed 8 years ago in a new addition on my home. I am finally (!?) getting ready to paint them.
The interior finish paint (that is already on the trim) is oil-based semi-gloss.
The exterior finish paint will be latex.
I am unsure of three things:
- Obviously I should clean the doors thoroughly – but with what? Is soap and water OK?
- Is any additional primer needed due to the 8 years of exposure?
- Is any additional primer needed for oil paint (which is now uncommon, sadly)?
Best Answer
This article provides a pretty good run-down.
Yes you should clean: soap and water or any other mild cleaner is good.
You may not need additional primer, but you should fix any dents/scratches -- they will stick out after you put the new paint on. Auto-body filler (eg Bondo) works for dents and deep scratches. Before you prime, the whole door should be lightly sanded using 120-150 grit sandpaper to roughen the surface, and then wipe the whole door down to get rid of any particles from sanding.
Use an oil-base primer, and again, be sure to lightly sand first.