All lines must be protected from chafing. Wherever possible lines should be routed to avoid rubbing contact with hard objects, especially hard, sharp-edged objects and most especially hard, sharp-edged and rough-surfaced objects. A good example of the worst situation is rubbing a dock line over the raw edge of a concrete pier. If this situation is unavoidable, then effective chafing gear must be used to protect the line. Chafing gear will wear through also, so it must be checked regularly and replaced when necessary. Chafing gear in storms can trap heat and lead to failure. Make sure chafing gear is well ventilated.
Chafe Protection
Most marine stores sell chafe sleeves made of leather, plastic, or rubber. They are sewed, tied, or taped in place according to the product instructions, covering the length of line where chafing could be a problem. Obviously, the vessel’s lines must be in place and adjusted to their final settings before the chafing gear is installed. Small dock lines (1/2 inch, 5/8 inch, and 3/4 inch) may be chafe protected using the proper-size garden hose, split lengthwise, and held in place with reinforced tape or plastic wire ties.