Sea-Line 2K Epoxy Primer Spray – Universal Two-Component Primer Aerosol

Sea-Line 2K Epoxy Primer Spray is a revolutionary priming solution that combines the convenience of an aerosol with the performance of a two-component epoxy primer. Inside the 400 ml can are separate chambers of base (epoxy resin) and hardener. By pressing a special red button at the bottom, the two components mix just before use, activating the primer. This provides a freshly mixed product with a pot life of up to 48 hours (at 20°C), allowing you to use it for multiple coats over two days. Sea-Line Epoxy Primer Spray enables both hobbyists and professionals to apply an epoxy primer by spray without the need for an air compressor or spray gun – perfect for spot repairs or hard-to-reach areas.

• Usage & Functionality: This primer spray is universal – it can serve as a base coat (primer) on bare metal, GRP, or old paint, as an intermediate coat between different paint systems, or as a filler primer for small surface imperfections. It is recommended for use both above and below the waterline. Once cured, it forms a durable layer that protects surfaces from corrosion and osmosis. In a total dry film thickness of around 250 µm (achieved with multiple passes), the primer provides anti-corrosive properties on metal surfaces and an anti-osmotic barrier on fiberglass hulls. It’s suitable for touch-ups on hull areas, keels and metal appendages, trim tabs, as well as priming missed spots or confined sections where using a conventional spray gun is impractical.
• Easy Activation & Application: To prepare the can, shake it vigorously for about 2 minutes (listen for the mixing balls rattling inside). Then remove the cap and take out the provided red push-button. Invert the can and place the red button onto the pin on the bottom of the can. Press firmly to break the internal seal, releasing the hardener into the resin. Shake the can again for another 2 minutes to thoroughly mix the components. The spray is now activated and ready to use. Adjust the spray nozzle to the desired fan size and orientation (the nozzle is adjustable for precise control). Hold the can about 15 cm (6 inches) from the surface and apply a thin, even coat. Standard application is about 2–4 coats to achieve the recommended dry film of 80–200 μm per coat (for full protection aim for ~240 μm total DFT). Allow a flash-off time of approximately 5–10 minutes between coats – the primer flashes off quickly and does not require sanding between layers as long as you apply the next coat within the specified re-coating window. After finishing your application, clear the nozzle by turning the can upside down and spraying until only propellant comes out – this prevents clogging and ensures the can can be reused within its pot life.
• Product Advantages: Sea-Line 2K Epoxy Primer Spray lays down a smooth, matte white coating that provides an excellent base for subsequent paint layers (such as polyurethane topcoats or antifouling). The primer has very good adhesion to GRP, steel, and properly prepared aluminum (for aluminum, ensure thorough sanding and degreasing beforehand). Thanks to the fast solvent evaporation, coats dry quickly, allowing you to build up multiple layers in a short time. The formula is designed such that it will not drip or run on vertical surfaces, preventing sagging and drips – a valuable feature when spraying on hull sides or other vertical structures. Being a two-component system, the cured film is resistant to fuel, oil, and chemicals, adding extra protection to primed areas once fully cured. The primer does not require sanding between coats (as long as you re-coat within the minimum 5 minutes to maximum a few hours window), saving time and effort. Each can comes with technical data sheet and safety information (accessible via QR code or link) for detailed guidelines on application and safety precautions.
• Practical Tips: Use within a temperature range of about 15–25°C (59–77°F) for optimal results, and work in a well-ventilated area or outdoors. The coverage of one aerosol (400 ml) is approximately 1–2 m² per coat, depending on film thickness, so multiple cans may be needed for larger surfaces. For best adhesion, ensure surfaces are clean, dry, and lightly abraded if necessary. After priming, let the final coat dry according to instructions (it’s typically dust-free in ~1 hour, full cure ~7 days at 20°C). You can then apply the next coating – whether it’s a polyurethane topcoat or antifouling – without sanding, provided the primer hasn’t exceeded its maximum overcoat interval. Sea-Line Epoxy Primer Spray is the ideal solution for quick touch-ups and high-quality priming, combining convenience with reliable, professional-grade performance.