Adventure Sailing / Repair Kit Checklist
Offshore Sail Repair Kit
Tools without materials fix nothing, and materials without tools the same. This is the complete kit for fixing a sail when you are the only loft for a thousand miles and covers tools, materials, spares and techniques for the repairs you need to keep you going.
What it covers
The one item most boats are missing.
Most offshore sailors carry a palm and needles. Far fewer carry matching sailcloth in the right weights, and that is the item that makes a repair structural instead of temporary. A patch in cloth that stretches differently from the sail works against it under load.
This checklist covers both halves of the kit, the tools and the materials, plus the hardware spares and the boat-specific records that are trivial to gather at the dock and almost impossible to reconstruct at sea.
The full kit
Everything that earns its place aboard.
Adhesives
- 3M 5200 marine adhesive (x2) — the workhorse; flexes under load instead of cracking
- West System G/flex epoxy (x1) — hard, gap-filling repairs where 5200 will not do
- Isopropanol or metho (500ml) — clean the cloth first; adhesion fails on salt
Patching materials
- Matching sailcloth (1m² per working sail) — the item most often missing; matched stretch makes a repair structural
- Sticky-back Dacron patches — fast cover for wear spots and small tears; not structural under load
- Insignia, code and rip-stop patches — chafe protection and light-sail fixes
- Heavy Dacron tape (two-inch) — seam reinforcing, edge sealing, chafe patches
Hand stitching tools
- Sailmaker's palm — must fit properly; a slipping palm makes long jobs impossible
- Sail needles, sizes 12 to 18 — triangular point for woven cloth; a dozen of each
- Waxed polyester thread (x2 spools) — pre-waxed polyester, never cotton
- Locking-stitch tool (Smart Stitch) — replicates machine stitching by hand; learn it before you go
- Scissors, seam ripper, needlenose pliers — cut clean, unpick without damage, drive needles through heavy layers
Hardware spares
- Battens (x2 full length) — pre-cut to the longest; mark shorter lengths before departure
- Mast cars and slugs (x2 each type) — exact part numbers, not approximations
- Shackles, rings, leech cleats, batten caps — two of everything the sail relies on
- Dyneema webbing — sized to your car fittings
Reference and storage
- Soft tape measure, pencil or chalk — mark stitch lines and patch placement
- Boat documentation — photograph every part number, batten length and luff diameter at the dock
- Waterproof container plus desiccant — labelled, and findable by any crew member
Get the guide
Print it, tick it, pack it.
The complete guide as a PDF, free to read and keep. No sign-up, no email required.
Free to download and share with your crew.
Common questions
The repair kit, answered.
What should be in an offshore sail repair kit?
Both tools and materials: 5200 adhesive and cleaning spirit, matching sailcloth in each working-sail weight, sticky-back patches and Dacron tape, a sailmaker’s palm, needles and waxed thread, a locking-stitch tool, plus hardware spares like battens, cars, shackles and rings.
What is the most important item in a sail repair kit?
Matching sailcloth in the right weights. Most boats carry a palm and needles but no cloth, which limits them to temporary coverage. A patch in matched cloth shares load with the sail; a mismatched patch works against it.
What adhesive is best for repairing sails at sea?
3M 5200 marine adhesive. It is a water-curing polyurethane with high shear strength that stays flexible under load rather than cracking. Clean the cloth first, apply to both surfaces, and allow 24 hours to cure.