Originally Posted by sunedog

If I'm doing a caulk job in a conspicuous area like around a sink, I take the time to mask all the way around it. Put a strip on the counter and a strip on the sink leaving about a 1/8" gap between the two. Take your time and make the tape strips parallel to each other.

Then caulk and smooth with your finger. Push down hard and don't worry about a small amount of caulk on the tape. Remove the tape immediately after. Don't let the caulk dry.

Silicone caulks are much harder to work with than acrylics or silicone/acrylic blends. I use a lot of DAP Alex Plus.