A hollow plastic part may include at least two plastic shells connected with one another at a respective edge along at least one joining plane. Each plastic shell may have at least a first component and a second component, wherein the plastic of the first component may have a lower melting temperature than the plastic of the second component. The first component may extend on at least one plastic shell in a caterpillar-like manner along at least part of the respective edge of the second component of this plastic shell.