Knowledge

Refit blog

Thorough, reliable guides on repair, refit and service — grouped by topic. Choose a category.

This is a knowledge library, not a list of our services. Some topics — systems, electrics, engines — go beyond the scope of our work; we ourselves deal with the surfaces and finish of a vessel.

All entries are visible.

Category

Hull and laminate

Osmosis in a laminate hull — diagnosis and repair

Diagnosing and fully repairing osmosis in a polyester laminate hull — drying, sanding, barrier coat.

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Sanding gelcoat step by step

How to sand gelcoat properly — choosing grit, wet and dry technique, and preparation for polishing.

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Polishing the hull to a mirror finish

Polishing gelcoat to a deep gloss — choosing compounds, pads, machine speed and protection with wax or a coating.

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Antifouling — choosing and applying an anti-fouling coating

How to choose and apply antifouling — coating types (ablative, hard), hull preparation and safe application.

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Repairing gelcoat cracks and chips

Repairing scratches, crazing and gelcoat chips — opening up the cracks, matching the colour and finishing to a gloss.

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Hand lamination — repairing a hull puncture

Repairing a hull puncture with glass-epoxy laminate — a bevelled grind, laying the cloth and rebuilding the gelcoat.

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Painting the hull with two-component (polyurethane) paints

Painting a hull with 2K polyurethane — preparation, primer, spray and roller-and-brush technique, and isocyanate safety.

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Anodes and protection against galvanic corrosion

How cathodic protection works, how to match the anode material to the water and when to replace it.

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Repairing coloured gelcoat and matching the colour

How to repair a chip in coloured gelcoat and match the colour so the repair is as invisible as possible.

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Washing, waxing and seasonal yacht care

How to wash, de-iron and protect gelcoat with wax or a coating so the laminate keeps its gloss all season.

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Category

Wood and varnish

Refitting a teak deck — cleaning and recaulking

Cleaning, sanding and recaulking a teak deck — restoring the colour and replacing the seams between planks.

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Restoring a wooden classic — hull planking

Restoring the planking of a classic wooden yacht — assessing the boards, replacing strakes, caulking and preservation.

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Varnishing yacht woodwork — 1K vs 2K varnish

Varnishing yacht woodwork — comparing 1K and 2K varnishes, number of coats, sanding between coats and UV protection.

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Oil or varnish on teak — comparing the methods

Oil, varnish or leave it bare? A comparison of teak care methods on a yacht, with the drawbacks, benefits and practice.

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Category

Deck and structure

Repairing the rudder and rudder stock

Diagnosing and repairing the rudder and stock — bearing play, a waterlogged blade, shaft corrosion and laminate rebuilding.

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Keel refit — ballast and the joint with the hull

Restoring a ballast keel — the keel smile, cast iron/lead corrosion, keel bolts and resealing the joint.

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Replacing deck hardware and fighting leaks

Fitting and sealing deck hardware — the overdrill technique, choosing the sealant, backing plates and eliminating leaks.

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Restoring windows and portlights — seals and acrylic

Repairing leaking windows and portlights: replacing seals, re-bedding and restoring hazed acrylic.

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Repairing a damp deck core (balsa/foam)

Diagnosing and repairing a damp core in a sandwich laminate (balsa/foam): drying and rebuilding.

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Renewing the deck non-slip surface

Renewing deck non-slip: painting with added grit or TPE/EVA panels for safe grip.

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Repairing bulkheads and structural reinforcements

Diagnosing and repairing detached or rotten bulkheads and structural reinforcements in a yacht hull.

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Anchor, chain and ground tackle — choice and inspection

Choosing the anchor type and weight, the chain length, and inspecting shackles, the swivel and the bitter end.

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Repairing deck hatches and companionways — sealing

A practical guide to repairing leaking hatches and companionways: replacing seals, re-bedding the frame and protecting the deck.

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Refitting the guard rail and storm rail (pulpits, wires)

Checking, repairing and replacing stanchions, pulpits and guard wires — a key part of safety on deck.

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Category

Engine and drive

Outboard engine maintenance

Flushing, changing the oil and plugs, and protecting an outboard step by step.

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Diesel engine service — impeller, filters, oils

A complete service of a marine diesel: oils, fuel and air filters, impeller and bleeding.

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Gearbox, propeller shaft and stern gland — inspection

Inspecting the gearbox, shaft alignment and cutless bearing, plus servicing conventional and dripless seals.

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Exhaust system and waterlock — checking and repair

How a wet exhaust with a waterlock works and how to check hoses, clamps and the anti-siphon loop to keep water out of the engine.

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The propeller — cleaning, protection and reconditioning

Cleaning, polishing, antifouling protection and propeller reconditioning, plus checks of anodes and the shaft.

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Bow thruster — service

Servicing a bow thruster: anodes, propellers, greasing the legs, checking the power supply and clutches so manoeuvres stay reliable.

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Category

Systems and power

Skin fittings and seacocks — inspection and replacement

Inspecting and replacing skin fittings and seacocks — choosing materials, fitting, sealing and safety.

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Refitting the 12/24 V electrical system

Refitting a 12/24 V system — choosing cable, protection, crimped joints, corrosion and safety rules.

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Repairing and replacing tanks (fuel, water, waste)

Diagnosing, repairing and replacing fuel, fresh water and holding tanks together with their plumbing and venting.

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Yacht pumps: bilge, fresh water, waste

Choosing, fitting and maintaining bilge pumps, fresh water pressure pumps and waste pumps.

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Solar installation on a yacht (panels, MPPT controller)

Energy balance, choosing panels and an MPPT controller, and a correct, safe solar installation.

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Choosing batteries: AGM, gel and LiFePO4

AGM, gel and LiFePO4 compared: usable capacity, charging, BMS and choosing a safe bank.

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Servicing refrigeration and the yacht fridge

How to maintain and service a yacht fridge: compressor, evaporator, condenser ventilation and cool box insulation.

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Water heater and hot water system on a yacht

Fitting and servicing a yacht water heater: heating from the engine and 230 V, the coil, the safety valve and the thermostatic mixer.

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Fitting navigation electronics and transducers

How to fit a chartplotter, log, echo sounder and transducers and link them over an NMEA 2000 backbone into one reliable network.

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Fuel lines and yacht hoses — replacement

Safe replacement of fuel hoses: the right standards, clamps, water separator and leak checks in diesel and petrol systems.

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Category

Rig and sails

Refitting an aluminium mast

Cleaning, corrosion repair and painting of an aluminium mast, plus inspection of fittings and tracks.

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Inspecting and replacing standing rigging (shrouds and stays)

How to assess wear on shrouds and stays, replace standing rigging safely and tune the mast.

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Sail repair and care

Cleaning, minor seam and cloth repairs, and correct sail storage for a longer service life.

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Servicing the genoa furler drum

How to strip, clean and service a genoa furler drum so the sail rolls smoothly and safely.

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Category

Interior

Interior refit — upholstery and materials

Replacing foam and covers, choosing marine fabrics and fighting damp under the mattresses in a yacht cabin.

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Removing and preventing mould on a yacht

Removing mould from a yacht interior effectively, and lasting ways to prevent damp and spores.

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Cleaning and refurbishing the bilge

How to clean the bilge effectively and safely, remove oil and odour, and prepare it for inspection and painting.

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Category

Gear, season and safety

Restoring and polishing stainless steel (rails, pulpits)

Removing rust bloom, polishing and passivating stainless steel on rails, pulpits and fittings.

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Winterising a yacht — complete preparation

A complete yacht winterising list: engine, water systems, batteries, hull and frost protection.

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Choosing and replacing lines: mooring lines, sheets, halyards

How to choose the diameter and type of rope for mooring lines, sheets and halyards, and replace them safely.

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Servicing winches — cleaning and greasing

Step by step: stripping, cleaning, greasing and checking the pawls of a yacht winch.

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Repairing an inflatable and a RIB

Locating the leak, choosing adhesive for PVC and Hypalon, and bonding a durable patch on a tender.

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Fire safety and extinguishers on board

Choosing extinguishers, engine bay protection, a fire blanket and how to react to a fire on board.

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How to prepare a yacht for a survey

How to prepare a yacht for a surveyor so the inspection runs smoothly and gives a credible, favourable result.

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A2 vs A4 stainless — choosing fasteners for a yacht

How A2 (304) steel differs from A4 (316), where to use each on a yacht, and how to avoid galvanic and crevice corrosion.

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Refitting a boat trailer

Trailer refit: hubs and bearings, brakes, the lighting circuit, rollers and supports, and protecting the frame from corrosion.

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