Quick Answer
Tarred bankline can become water-logged in wet conditions, reducing its strength and making it less effective for securing a boat. It may also start to sag or stretch, compromising the safety of the vessel. In extreme cases, water can penetrate the tar and cause the bankline to break.
Water Absorption and Breakdown
Tarred bankline is designed to withstand exposure to seawater, but prolonged submersion can still cause significant water absorption. When water penetrates the tar, it can break down the fibers within the bankline, leading to a loss of tensile strength. This can occur within as little as 2-4 hours, depending on the specific conditions.
Impact on Securing a Boat
When tarred bankline is wet and weakened, it becomes less effective at securing a boat to a dock or mooring. In strong winds or currents, the weakened bankline may not be able to withstand the forces exerted on it, putting the boat and its occupants at risk. As a general rule, it’s recommended to inspect tarred bankline for signs of water damage or weakening before using it in wet conditions.
Inspecting and Replacing Tarred Bankline
To ensure the safety of a vessel, it’s essential to regularly inspect tarred bankline for signs of water damage, wear, or weakening. If the bankline appears waterlogged or shows signs of significant wear, it should be replaced immediately. In general, tarred bankline should be replaced every 6-12 months, or sooner if it’s exposed to harsh conditions or heavy use.
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