What is a Plastic Clamshell?
A plastic clamshell is a one-piece package comprised of two halves joined together by a hinge area allowing the structure to join and close. Plastic clamshells are sometimes called blister packs although there are differences as we note below. Plastic clamshells are named after the shell of a clam because it is very similar in form and function.
A blister pack is a pre-formed plastic package often used for small consumer goods and pharmaceutical products.
The main feature of a blister packing is its custom cavity and perimeter flange molded from a formable web of plastic. A blister pack will have a paperboard, plastic or specialty foil lid stock sealed to its flanges. A blister pack that folds onto itself is sometimes referred to as a clamshell package.