Pipe Markers are labels that are attached to pipes in order to identify the contents of the pipe and indicate the direction of flow. They may include stock or custom legends and be suitable for high-temperature pipes, rough or greasy pipes and pipes with areas of abrasion. Ammonia systems and medical gas distribution systems can be labeled with a pipe marker. Marking pipes helps workers identify pipe contents and understand potential dangers. Marking pipes can also help avoid accidental contamination and eliminate confusion when personnel need to shut down a line. Many types of labels can be used as pipe markers. Examples include adhesive vinyl labels and clear vinyl labels. An adhesive vinyl label can be used to identify a length of pipe for proper connection and maintenance. An adhesive vinyl label can also provide a mark for a lockout or tag-out device. A clear vinyl label can be applied to surfaces dry and dust-free surfaces. They do not adhere well to greasy surfaces. Clear vinyl labels can also be applied via dry or wet methods, however for best results the wet method is preferred.