4mm Sirius 500 from Robline is a great low stretch yet affordable line for control lines, halyards, and other application on recreational sailboats. This is a double braid polyester line, meaning it has a 8-plait polyester core and a 32-plait polyester cover, and is known for its high breaking loads and minimal stretch. The line holds up very well in hardware such as cleats, making it a great option for many small boat and recreational cruising sailors.
- Colors: Red, Blue
- Diameter - 4mm (5/32 inch)
- Other Available Diameters - 5mm
- Core - 8 Plait 100% Polyester
- Cover - 32 Plait 100% Polyester
- Applications - Control Lines, Halyards
- Features - Double Braid, Low Stretch
- Average Strength - 1212 lbs
- SOLD BY THE FOOT (Quantity 1 = 1 Foot. Adjust quantity to order longer lengths)
- Stretch - Polyester offers relatively low stretch and acceptable for recreational applications
- Material - 100% polyester for both cover and core
- Splicing - This line is not recommended for splicing
Polyester Double Braid
Shipping & Returns
Delivery Info: Enjoy Free Standard Shipping on most orders* to the Continental United States over $75. Our Standard Shipping method utilizes USPS, UPS, and FedEx to send packages near and far. Oversize/Freight shipping (where applicable), Expedited Shipping (where available), and rates to other destinations will be calculated at checkout.
See our Shipping Page for more information (and exceptions).
Returns Info: Your 100% satisfaction is our goal - we want you to love your sailing gear, but if something doesn't work out, we accept returns on most new, unused items*. Returns can be made within 366 days (1 year + 1 day) of your original order date. Exceptions include (and are not limited to) cut line, Rig Shop products, special order items, numbered sailors, and items used or worn sailing.
See our Returns Page for more information.