Which type of thin set should I use?

You might use thin set as your adhesive if you plan to tile a shower floor or use heavier materials. For kitchen backsplash, we recommend modified thin set which comes with some bonus benefits you won’t find with standard mortar. You can learn more about thin set in our blog. –>https://resources.giorbello.com/everything-you-need-to-know-about-mortar-and-grout/