Whitsunday Discount Marine only recommends nylon docklines for permanent docking.
Nylon - the king of rope. Twice as strong as Silver or Betelon (polypropylene) ropes. Absorbs shock. Don't trust your boat to any other dockline.
COMPARATIVE BREAKING & WORKING LOADS OF DOCK LINES
|Nylon Double Braided||Polyester 8 Braid|
|Rope Diameter||Breaking Load Kg||Working Load Kg||Breaking Load Kg||Working Load Kg|