Drywall tape is a type of adhesive tape used in the construction industry to reinforce joints between sheets of drywall, also known as gypsum board or plasterboard. It is commonly used to cover seams where two pieces of drywall meet, as well as around corners where walls and ceilings meet. Drywall tape is typically made from a paper or fiberglass material with a self-adhesive backing. The tape is applied to the drywall joint, and then a layer of joint compound is applied over the tape to create a smooth, seamless finish. The joint compound is then sanded down to create a smooth surface ready for painting or wallpapering. There are two main types of drywall tape: paper tape and fiberglass tape. Paper tape is typically used for flat seams and has a slightly rough texture that allows joint compound to adhere easily. Fiberglass tape is stronger than paper tape and is typically used for corners and areas that may experience more stress, such as around windows and doors. Overall, drywall tape is an essential component of any drywall installation, as it helps to strengthen and reinforce joints between sheets of drywall. It is available in a variety of widths and lengths to suit different needs and applications, and can be found at most home improvement stores.