Seachoice 42930 Solid Braid Nylon -White-1/2 X 250

Solid Braid Nylon. Stays Round. Works in Blocks and on Winches.

The Seachoice 1/2" x 250 Ft. Solid Braid Nylon Rope Spool is a different animal from double braid or twisted rope — solid braid construction maintains a firm, uniformly round profile under load, making it the right choice for applications where the rope runs through blocks, over winches, or in any situation where a flat or distorted rope profile would cause problems. It doesn’t flatten, it doesn’t hockle, and it feeds cleanly through hardware.

High-grade nylon provides the elasticity needed to absorb sudden shock loads — ideal for dock lines, anchor lines, and mooring lines where surge forces are a concern. Resistant to rot, mildew, abrasion, gas, and oil, this solid braid line is built for long-term marine service in demanding conditions.

Key Features

• Solid Braid Construction — Maintains a firm, uniformly round profile under load; does not flatten or distort like twisted or double braid rope
• Ideal for Blocks and Winches — Round profile feeds cleanly through blocks and over winch drums without jamming or distorting
• High-Grade Nylon — Natural elasticity absorbs sudden shock loads; protects vessel, cleats, and dock hardware
• Rot, Mildew, Abrasion, Gas & Oil Resistant — Built for long-term marine service in harsh environments
• 1/2" Diameter — Heavy-duty sizing for larger vessels and high-load dock, anchor, and mooring applications
• 250-Foot Bulk Spool — Cut to any length needed for custom dock lines, anchor rodes, or rigging applications
• White — Clean, classic appearance; easy to inspect for wear and contamination

Specifications

• Brand: Seachoice
• Construction: Solid Braid
• Material: High-Grade Nylon
• Diameter: 1/2" (12.7mm)
• Length: 250 ft (76.2m)
• Color: White
• Weight: 8.46 kg (18.7 lb)
• Part Number: 50-42930

For applications where rope profile integrity under load matters — blocks, winches, and hardware-routed lines — the Seachoice solid braid nylon spool is the construction to specify.

⚓ Parts Desk Insight

• Solid braid vs. double braid — choose based on application: Solid braid stays round and firm under load, making it the right choice for blocks, winches, and hardware-routed lines. Double braid is generally stronger for a given diameter and more common for dock lines and anchor rodes where hardware routing isn’t a factor. If the customer is running line through blocks or over a winch, solid braid is the better specification.
• Solid braid is not as easy to splice as double braid: The construction makes traditional eye splices more difficult. For finished dock line ends, heat-sealing or whipping is the more practical approach at this construction type.
• 250 feet vs. 600 feet — shorter spool for targeted applications: At 250 feet, this spool is sized for specific rigging projects or a smaller inventory of custom-cut lines rather than a full marina bulk supply. Customers needing 600 feet should check the double braid 1/2" spool.
• Rot and oil resistance makes it suitable beyond marine use: The resistance to gas, oil, and mildew makes this solid braid nylon a practical choice for industrial and utility applications around docks, boatyards, and marine service facilities — not just on-vessel use.