SUBMARINES

High-performance buoyancy foam and sandwich core solutions for submarines.

Trusted for strength, tailored for pressure

When pressure increases, performance must hold. Diab’s high strength and high buoyancy closed-cell foam cores provide outstanding resistance to compression and other forces, making them a natural choice for both buoyancy and structural sandwich applications in submarines. Our high-performance buoyancy foams offer long-term creep resistance, improved thermal and acoustic resistance and good dielectric properties.  

From trim and ballast to auxiliary flotation units, our lightweight foams offer high uplift per weight and low creep over time, ensuring stable operation under demanding conditions. With decades of experience in defense and subsea systems, Diab is a trusted partner for reliable solutions beneath the surface.

For operations beyond 700 meters, all the way down to the seabed, we offer tailor-made buoyancy systems in syntactic foam through Subsea Composite Solutions, a dedicated division within Diab.

FAQ about Submarines buoyancy solutions

What buoyancy and core materials does Diab offer for submarines?

Diab supplies high-strength, high-buoyancy closed-cell foam cores for buoyancy and structural sandwich applications. For ultra-deep operations, tailor-made syntactic foam systems are provided via Subsea Composite Solutions (a Diab division).

How do these foams perform under pressure?

They deliver outstanding resistance to compression and other forces, offering high uplift per weight and low creep over time—supporting stable operation in demanding conditions.

What additional performance benefits do the materials provide?

Long-term creep resistance, improved thermal and acoustic resistance, and good dielectric properties.

Which submarine applications are they suited for?

From trim and ballast to auxiliary flotation units and structural sandwich components, Diab’s lightweight foams are trusted solutions beneath the surface.