The Importance of Sealing Fastener Holes on Your Vessel
Fastener holes are commonly found on decks, bulwarks, hardtops, flybridge tops, cockpits, bilge areas, and swim platforms. You might have noticed these when your boat was last out of the water. The question arises: should you seal them or not?
Why Seal Fastener Holes?
The short answer is YES! Sealing these holes is crucial to prepare your boat for severe weather, prevent water or environmental elements from penetrating and causing damage to core materials, interior cabinets, components, furnishings, or even the hull. Open fastener holes can lead to serious issues such as water infiltration and osmosis, which will be covered in future discussions. In timber-rich vessels, freshwater can cause rot, while saltwater tends to preserve timber.
Causes
Fastener holes can result from the removal or replacement of components with different footprints, such as bilge pumps, float switches, water pumps, antennas, swim step brackets, and clamshell fittings over skin fittings. It is essential to seal these holes as soon as they are exposed.
Vulnerable Areas
Unsealed holes on decks, roofs, or hardtops are particularly problematic because freshwater from rain or boat washing can easily seep into places it shouldn’t. Coring, which refers to the material that fibreglass surrounds, often consists of timber such as plywood and balsa. Unsealed access to water or moisture can create mould and ultimately lead to rot, compromising the structure due to decay and deterioration.
Signs of Potential Issues
Look out for drip marks or rust stains weeping from existing fasteners or open fastener holes. These are indicators of potential issues that need immediate investigation to prevent ongoing or future damage to your boat. Sealing your vessel completely ensures a long, useful life and maintains resale value.
Conclusion
Sealing fastener holes is a vital step in maintaining the integrity and longevity of your vessel. By addressing these potential entry points for water and environmental elements, you protect your boat’s core materials and internal components from damage, ensuring safe and enjoyable boating experiences. Aquamarine Services is your trusted partner for all marine surveyor needs, offering a wide range of expert services to ensure your vessel’s safety, reliability, and performance.
