POLYURETHANE GLUE N-22 750cc.

Function and technical context

N-22 polyurethane glue in 750 cc format is a high-strength sealant adhesive designed specifically for nautical applications where durable structural anchoring is required in environments of permanent immersion or continuous exposure to salt water and atmospheric agents. This type of compound works in joints of deck, hull, bulkheads, fittings, handrails and any joint that must withstand mechanical vibrations and repeated thermal cycles without losing adhesive integrity. Its polyurethane formulation guarantees residual elasticity after curing that allows the structural movements of the boat to be absorbed without the joint cracking or detaching, something that a conventional rigid sealant cannot offer in this environment. A poorly sealed joint or one with inadequate adhesive is the main route for moisture and water to enter the structure, which can lead to rotting of the fiber core, corrosion of embedded metal elements and compromising the structural integrity of the deck or hull.

When to replace or reapply this product?

The most common symptoms that indicate that a joint sealed with polyurethane has exhausted its useful life are the appearance of water leaks inside the hull or deck, visible detachment of the sealing bead, the presence of moisture stains around screwed hardware or at the deck-hull joint, and discoloration or excessive hardening of the material. In boats subjected to intensive use or climates with strong thermal variations, it is recommended to check the condition of all polyurethane joints during each annual seasonal maintenance, especially after wintering or prolonged stranding. Preventively reapplying N-22 glue on joints that show the slightest sign of deterioration avoids costly structural repairs and guarantees the watertightness of the boat throughout the navigation season.

Compatibility table