Adhesive tape is covered with an adhesive on the one side, occasionally both sides, to enable it to stick to different materials. There are a variety of different types of tape, but the most commonly used include :
The original name is cellophane tape or in short "cellotape", but it became known as Scotch Tape after the brand name of one of the most popular brands of cellophane tape. Scotch tape is normally see through and comes in a variety of widths. It can be used for most lightweight sticking such as present wrapping and taping up posters.
Masking tape is slightly heavier than cellophane tape and has a rough paper texture that makes it possible to write on it. The named is derived from its common use to mask things by holding paper in place over it. It is often used to cover up a certain area while its surroundings are being painted.
Duct tape is a tough plastic tape that was originally designed to seal seems of ducts in ventilation systems. It is a strong adhesive tape that can be used on nearly any material for medium to heavy repairs and patches.
Double-sided tape is normally a foam tape which has adhesive on both sides of the tape. They are strong and are intended to be hidden from view, because they are placed between two objects to hold them together. This kind of tape is often used to hang mirrors and pictures on walls.
Electrical tape is also known as insulation tape because it is used to insulate electrical wires and other material that conduct electricity. It is usually made from vinyl or plastic and is extremely elastic for effective insulation. Electrical tape also comes in a variety of colours and variations for specialised purposes. They make excellent colour coders due to the variety of colours they are available in.
All of the above mentioned tapes are pressure-sensitive adhesive tapes, which means that they will stick to a surface as soon as they are pressed onto it.