How to Redo old caulk Have you ever just were washing your hands, and suddenly noticed how dirty it looks around your sink, you've tried cleaning it to no avail and it just still looks so ugly because of the caulk around your sink or tub.Caulk is used to seal water and prevent mold around your sink and tub but in time it can shrink break down and lose its effectiveness. This short tutorial will show you how to fix that and refresh your sink with a clean look. this was my sink. after i already started scraping the caulk off Materials...... Bathroom cleaner Sponge Scraper Caulk (optional caulk gun) step 1. I used the bathroom cleaner to wet the caulk and start breaking it down as well as clean the area. ensure to get all the old caulk off using the scraper to get any hard to remove areas. I've tried this once before without one and it was very time consuming. step 2. Use a paper towel to dry off the faucet area getti...