Surface preparation is extremely important when applying any self adhesive material and unfortunately is overlooked on many occasions. It’s not rocket science, just some important things to do to ensure the tape bonds correctly.
Ensure any surfaces are clean and free of dirt, dust, rust, flaking or peeling paint, oxides, oils or grease. If need be, abrade the surface so that you have a clean and smooth surface to bond to. When you have finished cleaning the surface wipe over with an IPA based cleaner and a lint free cloth to make sure that there is no residue left on the surface. Under NO circumstances use methylated spirits or turps as these are oil based and can leave a residue that can affect the bond. With some materials such as low surface energy plastics, you may need to apply a primer to the surface before tape application.