Corrosion and Heat-Resistant Sealing for Marine and Shipbuilding Applications

Marine and shipbuilding sealing has to survive two attack modes at once: constant seawater and salt-spray exposure, and — in engine rooms and near exhaust systems — sustained heat. Materials chosen for one often fail against the other, which is why marine specifications differ from general industrial sealing.

Seawater-exposed gaskets and seals

Rubber Sheet in EPDM grade is the standard base for seawater-exposed gaskets and hull penetrations, chosen specifically for weather and salt-water resistance over standard SBR rubber.

Engine room and hot-area sealing

Silicone Coated Fiberglass Fabric handles engine-room heat shielding and flexible connections, resisting abrasion and weather while the fibreglass base takes the higher continuous temperature.

Fire and heat protection

Glass Cloth provides asbestos-free heat and fire protection around engine spaces and welding areas during fabrication and maintenance.

Chemical-resistant components

PTFE Sheets and PTFE Rods machine into seals and bearings resistant to both seawater and the fuels and chemicals found aboard vessels.

Frequently asked questions

Is EPDM always the right rubber grade for marine use? For seawater and weather exposure, yes — where oil or fuel contact is also present, an NBR grade may be more appropriate for that specific seal.

Does silicone-coated fabric need extra protection in salt air? The silicone coating itself resists weathering well; the main consideration is the base fibreglass at cut edges, which benefits from sealed hems in continuous marine exposure.

Tell us the exposure — seawater, engine heat, or both — and we’ll confirm the right material for the application.