Moved into a new place, an lovely but old house. The kittchen is pretty dated and will be replaced the next years, but for now I want to deal with one particular issur which is black / mold wood around the sink. Its spread all around the sink but particulary behind thr narrow space between sink and wall.

ChatGTP suggest the following;

1) Kill Mold with white vinegar 2) Use scraper to remove build up 3) Sand 4) Use silicon to seal the sides 5) Use priner to seal wood

Then prefersbly I want to use white waterresistant paint to add another layer and hopefully not to have to deal with it till a new kittchrn arrives.

My question though is how to best sand the small spacd between sink and wall? Its way to narrow even for a mouse sander. Also any additional tips on how to make the area mold proof fot at least next year?

How the gap looks; https://imgur.com/a/VdROJyK