Do you want to add a middle marker to your climbing rope, or maybe you want to add additional markers near the ends your rope? If so you will need a product that will not damage your rope. The Beal Rope Marking Ink has been tested by multiple companies and is safe to use on most ropes.
The marking is applied with a smaller roller for ease of use. The ink process will have a small effect on the suppleness and water resistance of the applied area, so make sure you do not put too much on. But it will not affect the polyamides in the rope. When dry, the ink stands up well to general abrasion.
Roller brush applicator