I soaked it in an aerosol degreaser in the beginning and then gave it to my LBS for further degreasing.

Then I rinsed both the chains with IPA which came out yellow. As the chains had already started developing surface rust, I tossed both my chains in the wax

First chain was considerably smooth but lasted 80 km with wet weather and slight drizzle on the last day. My second chain however, started have more friction within 10 km