Are There Different Grades of Tarred Bankline Available?

Grades of Tarred Bankline

When selecting a tarred bankline, it’s essential to consider the specific requirements of your application. The most common grades of tarred bankline include Number 1, Number 2, and Number 3. Number 1 bankline is the most robust, with a minimum of 1,500 pounds of tensile strength per inch (psi) of diameter. It’s commonly used for heavy-duty applications such as securing anchors or towing. Number 2 bankline has a minimum of 1,000 psi of tensile strength, making it suitable for general-purpose use, such as securing sailboats or dinghies. Number 3 bankline has a minimum of 500 psi of tensile strength and is best suited for lighter applications, such as securing small sailboats or kayaks.

Rope Diameter and Strength

It’s also crucial to consider the diameter of the tarred bankline in relation to its intended use. In general, larger diameters provide greater strength and durability. For example, a 1/4 inch diameter Number 1 bankline may have a tensile strength of 4,500 psi, while a 3/8 inch diameter Number 1 bankline may have a tensile strength of up to 6,000 psi. When choosing a tarred bankline, it’s essential to match the rope diameter to the specific application to ensure optimal performance and safety.

Tarring and Sealing Techniques

Proper tarring and sealing techniques are critical to extending the life of your tarred bankline. To apply tar effectively, start by applying a small amount of tar to the working end of the rope and then work your way along the length of the rope. Use a rope twister or a tar applicator to distribute the tar evenly and prevent it from pooling in certain areas. To seal the ends of the rope, apply an extra layer of tar and then twist the working end to seal it. This will help prevent water from entering the rope and reduce the risk of damage or failure.