Overcoming chipping paint when repainting


Hi,
I would like to repaint my window sill which has an old layer of paint that has chipped and there are spots that look like this now:
https://www.math.drexel.edu/~pg/paint.jpg
What to do before repainting? Strip the whole thing? Fill the "potholes with wood putty? Do something else?
Thanks!
Aaron Fude
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snipped-for-privacy@gmail.com wrote:

Prime.
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For the best job: strip, prime, and paint. A good paint store will sell you the proper materials.
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