I really like the look of the handles being more of a texture, not a standout color, so I decided to also spray a coat of primer on those. (armchairdecoratorblog.com)
However, sinks with sound - absorbing pads were quieter than sinks with spray coating on the bottom. (moneysense.ca)
Or, send them out to a paint shop for a factory - finish spray coat. (bhg.com)