Are there different kinds of latex caulk?
Yes. For example, vinyl latex is good for small cracks. Acrylic latex is a little more flexible and lasts longer, up to 10 or 15 years. Siliconized acrylic latex should not be confused with a pure silicone caulk. It is a medium-performance caulk that provides some water resistance and lasts up to 25 years or more.