Hatches, housings and lockers

What's the difference between a watertight hatch and a non-watertight hatch?

Watertight hatches are equipped with rubber seals and compression locking systems that prevent water from entering. Non-watertight hatches offer only partial protection from splashes.

How do you measure a boat hatch?

Measure the external dimensions (overall size), the internal dimensions (clear opening), and the dimensions of the recess (cutout). Always check the manufacturer's technical drawing.

Can I install a watertight hatch below the waterline?

Absolutely NOT. Watertight hatches are designed to withstand splashes and rain, not water pressure. Only certified seacocks and through-hull fittings should be installed below the waterline.

What products should I use to clean the hull without damaging the Gelcoat?

Use neutral detergents specifically designed for marine use, avoiding harsh products such as bleach or acetone. For rust stains, try a product based on oxalic acid. Always apply a protective wax after cleaning to protect the Gelcoat from UV rays and salt spray.