Mast Sealing Compound
Spartite Mast Sealing Compound & Deck Collar Sealing Solutions for Yacht Builders & Marine Professionals
Technical Marine Supplies supplies Spartite mast sealing compound, the industry-leading solution for sealing keel-stepped masts at deck level. Designed to create a durable, flexible and watertight seal between the mast and deck collar, Spartite eliminates the need for traditional mast wedges while improving rig support, reducing movement and preventing water ingress.
As the European distributor for Spartite, Technical Marine Supplies provides genuine Spartite sealing systems to boat builders, riggers, yacht service companies and marine professionals throughout the UK and Europe. Spartite has been trusted for decades across sailing yachts, cruising vessels, racing programmes and superyacht applications, delivering a proven alternative to conventional mast chocking and sealing methods.
Spartite forms a custom-moulded collar between the mast section and deck aperture, creating a secure seal that helps minimise deck leaks while providing additional mast support. Once installed, the compound creates a resilient, long-lasting barrier that withstands vibration, weather exposure, vessel movement and the demanding conditions associated with offshore sailing.
Suitable for both new-build and retrofit projects, Spartite reduces maintenance requirements and simplifies mast installation when compared with traditional wooden wedges, rubber packing and improvised sealing materials. Available in a range of kit sizes, Spartite provides an effective solution for vessels of varying mast dimensions and deck configurations.
As a specialist B2B marine distributor, Technical Marine Supplies supports boat builders, spar builders, riggers, yacht service companies and OEM manufacturers with expert technical advice and product specification support. Our team can help determine the correct Spartite kit and installation requirements for your vessel or project.
Looking for Professional Mast Sealing Solutions?
Technical Marine Supplies supports:
- Boat builders
- Spar builders
- Rigging professionals
- Yacht service and maintenance companies
- Superyacht projects
- OEM manufacturers
With:
- European Spartite distribution
- Expert product specification support
- Solutions for new-build and retrofit projects
- Trade and OEM pricing available
- UK stock and worldwide shipping
Contact our technical team today for Spartite product recommendations, installation guidance or to discuss opening a trade account.