Kokoelma: Glues

Glues: reliable assembly for durable marine electronics

In the marine environment, assembly quality is paramount. A poorly insulated electrical connection, an insufficiently secured sensor, and the entire onboard electronics chain can be compromised. At Skysat, with our offshore racing experience, we have selected glues and sealants specifically adapted to the constraints of the marine environment. Here you will find proven solutions to ensure the longevity of your installations.

Surface preparation and adhesion

The adhesion of a glue is directly linked to surface preparation. Thorough degreasing and, if necessary, light sanding are essential to ensure a durable bond. The choice of adhesion primer, compatible with the materials to be assembled, is also a determining factor.

• Surface degreaser cleaner: Essential for removing oils, greases, and other contaminants.
• Adhesion promoter for plastics: Improves adhesion on difficult plastics, such as polypropylene.
• Fine-grit sandpaper: To create a bonding surface without damaging materials.
• Preparation wipes: Convenient for quick and effective cleaning.

Marine-specific glues and sealants

The marine environment imposes specific constraints: humidity, temperature variations, vibrations, UV exposure. The selected glues and sealants must withstand these aggressions to ensure a durable and watertight assembly. The choice will depend on the materials to be assembled (metal, plastic, wood, etc.) and the mechanical stresses.

• Sikaflex 291i: Multi-purpose polyurethane sealant, ideal for sealing and flexible bonding.
• Loctite 406: Cyanoacrylate adhesive for rapid bonding of small components, especially in electronics.
• Neutral silicone sealant: For sealing hull fittings and other components passing through the hull.
• Two-component epoxy: For structural bonding requiring high mechanical strength.

Sealing and protection of connections

The watertightness of electrical connections is crucial to prevent corrosion problems and short circuits. Specific solutions exist to protect connectors and cables from saltwater ingress. The use of sealing resins or heat-shrink tubing with integrated adhesive is recommended.

• Sealing resin for connections: Effectively protects electrical connections against moisture.
• Heat-shrink tubing with adhesive: Ensures perfect sealing of cables and connectors.
• Dielectric silicone grease: Protects electrical contacts from corrosion.
• Self-amalgamating tape: For sealing cables and emergency repairs.

💡 Skysat's advice

Before gluing anything, test on a small, inconspicuous area. This will allow you to check material compatibility and adjust the amount of glue. And remember, successful bonding starts with careful preparation!