Weather is finally getting a bit warmer so the plan is to start working with the keel repair today.
The cleaning powder is mixed with some water and the paste is applied with a brush to topsides
The right side of the waterline is treated with the cleaning powder. The boot stripe requires still some cleaning after the treatment.
Removing the rust stain coming from anchor locher drain is a typical problem. The Hempel cleaning powder removed that pretty well (right pic).