RubbaHatch Watertight Seals
Key Features
- Provides watertight seal for doors and hatches on marine vessels
- Good resistance to ozone and weathering
- Sponge rubber core provides compression
- Solid rubber skin provides protection
- Wide range of materials available
- Easy to install
Product Description
Our RubbaHatch watertight seals, also known as hatch seals, hatch packing or watertight door seals are designed to provide a watertight barrier for hatch covers, doors, ullage plugs, skylights and more. They prevent water, gas, and other substances from entering the vessel protecting cargo and the ship’s interior. They are most commonly used on naval ships, cruise ships, ferry lines, and oil, gas, and chemical tankers.
They are constructed with a cellular sponge core with a bonded solid rubber outer skin on three sides. The rubber outer face strengthens the seal whilst the interior cellular sponge offers great recovery from compression and a watertight seal when compressed.
RubbaHatch seals can be supplied with chamfered edges to assist with installation and allow for welds and other irregularities in the bottom of the channel.
Material Selection
We can offer a variety of different types of rubber for the outer sealing face dependant on your specific application:
- Natural rubber – general purpose use
- Neoprene rubber – high temperature and ozone resistance
- Nitrile rubber – gas and oil resistance
- EPDM rubber – durability with good UV and ozone resistance

RubbaHatch-S®
Our RubbaHatch-S® is a solid rubber extruded seal. This can be supplied with chamfered corners to assist installation and cater for troublesome welds at the base of the channel. A hollow section improves the seal’s compressibility and its response to clamping pressure.
RubbaHatch-SP®
This is our high-density, closed cell sponge that has been specifically manufactured for use in hatch sealing applications. Our RubbaHatch-SP® allows for a variety of compression rates in order to ensure you get an airtight as well as watertight seal, without deteriorating the material.
Specifications
Application: | Door and hatch packing for marine vessels |
Product: | Composite Hatch Packing |
Hardness (Shore A): | 60º, 70º |
Material: | Natural, Neoprene, Nitrile and EPDM Rubber |
Colour: | Black |
Potential Applications
- Hatch seals and cargo covers
- Watertight door seals
- Skylights
- Ullage plugs
- Ferry lines, naval ships, and cruise ships
- Oil, gas, and chemical tankers
Technical Data
Standard Sizes | |||
---|---|---|---|
30mm x 20mm | 30mm x 25mm | 35mm x 20mm | 35mm x 25mm |
38mm x 25mm | 38mm x 30mm | 38mm x 38mm | 40mm x 20mm |
50mm x 20mm | 50mm x 30mm | 57mm x 32mm | 60mm x 40mm |
70mm x 32mm | 70mm x 40mm |