Knowing how to caulk a sink is essential for any kitchen remodel. Not just any caulk will do for this project – youāll need a high performance caulk or sealant that gives your customers long-lasting results. High quality sealants are more durable and, for a contractor, that means fewer repairs for your team and less hassle for your customers. Read on to learn how to caulk a sink and why the type of caulk you use makes a difference.