Remove latex caulk and loosen silicone caulk fast with Klean Strip Caulk Remover. This caulk softener and remover is ideal for removing old caulk from tubs, sinks, showers and countertops in as little as 5 minutes. It also removes expansion foams. The thick formula offers vertical cling - ideal for tackling caulk on vertical surfaces. To remove old Caulk: 1) Apply over existing caulk to soften and dissolve the bond. 2) Allow to sit for 5-20 minutes (note that some types of caulk may require more time). 3) Scrape. 4) Repeat application as needed. 5) Rinse area with soap and water. For removing fresh caulk apply and wait 1 minute. Wipe off excess caulk and rinse with soap and water. Clean up any spills immediately. Do not use on painted, refinished or varnished surfaces.