Subsea Buoyancy Solutions
High-Performance Subsea Buoyancy Modules for Offshore Applications
All buoyancy modules and equipment manufactured by ALSEAMAR are sold under the BMTI brand name. ALSEAMAR has a large and dedicated manufacturing plant capacity for subsea foam modules for underwater vehicles and has internalized each production step.

The Lowest Densities and Reliable Syntactic Foam
ALSEAMAR offers a wide range of syntactic foam references to match every subsea vehicle. Depending on their size, shape and maximum depth, ALSEAMAR will advise their clients with the best reference to provide the optimal combination.
BMTI solutions come both in standard foam blocks or custom-shaped buoyancy modules.
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TEST-PROVEN FOAMS BLOCKS
The Power of Expert Teams
ALSEAMAR’s human-scale approach enables highly responsive and personalized support from the teams.
The company provides genuine, expert advice to optimize the balance between superior technical performance and long-term durability, ensuring that each solution is tailored to meet the specific needs of their clients.
The teams of experts easily create foam blocks that are specifically designed for seamless integration into vehicles, making the process smooth and efficient.
A Wide Range of Applications
ALSEAMAR is well known to provide solutions for offshore industries as its equipment is deployed at great depths over long periods time, requiring also materials engineered and products designed to meet this challenging requirement.
ROV (Remote Operated Vehicle)
AUV (Autonomous Underwater Vehicle)
Hybrid ROV
Deep ocean exploration submersible
Human-occupied submersible
High Quality at Every Step of Manufacturing
Incorporating BMTI materials into underwater vehicles significantly increases its underwater buoyancy, whilst providing the highest strenght-to-weight ratio to meet the deep and ultra-deep-water environment demands.
Quality and traceability throughout the process, with identification and test sample on each block, etc.
Control of the entire process: from R&D to manufacturing with in-house formulation
Specialized and Dedicated Factory
ALSEAMAR stands out for its agility and responsiveness, offering the flexibility of a smaller structure while delivering the expertise and solutions of much larger companies.
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