PRECISION

Milling with a 30m gantry milling machine

Advanced composite material science
for high-performance yacht construction

Conventional production yachts — the majority of which have been built from chopped fiberglass and polyester resin since the 1960s — carry a fundamental structural inefficiency. A standard 45-foot planning vessel in this category displaces 14,000 kg or more – a mass penalty that propagates through every downstream system: propulsion requirements, tank capacity, impact strength, and ultimately, cost. The physics are unforgiving — excess displacement is a compounding problem, not an isolated one.

The Maldivia 45 is designed from first principles to eliminate this penalty.

Precision digital engineering

Integrated 3D design workflow

The entire design and engineering process at Maldivia Shipyard is conducted within a unified three-dimensional parametric model. Every discipline — structural engineering, naval architecture, systems integration, and composite laminate design — operates concurrently on a single shared file, accessible to the full project team regardless of geographic location. This eliminates the dimensional ambiguities and revision inconsistencies inherent to traditional 2D drafting workflows, ensuring that every surface, structural member, and system interface is geometrically resolved before a single component enters production.

The result is a design environment with zero tolerance for dimensional conflict: what is modelled is what is built.

CNC mould production

Mould geometry is transferred directly from the 3D design file to computer numerical control (CNC) milling equipment, removing manual interpretation from the translation between design intent and physical tooling. This digital-to-physical pipeline compresses dimensional tolerances to near-zero, ensuring that hull and deck moulds reproduce the designed geometry with sub-millimetre accuracy across the full surface.

30M Gantry Milling Machine

For large structural components, Maldivia Shipyard operates gantry-type CNC milling machines capable of machining parts up to 30 metres in length and 10 metres in width. This capacity allows full-scale hull tooling to be produced as continuous, seamless surfaces — eliminating the panel joints and fairness discontinuities associated with conventionally assembled moulds, and ensuring that every vessel off the production line is geometrically identical to the design specification.

Material system:
proprietary prepreg technology based on epoxy

The structural basis of every Maldivia yacht is a carbon/glass fibre–epoxy composite system, manufactured using our prepreg technology: Prepregs — pre-impregnated fibre reinforcements with precisely controlled resin content — deliver fibre-to-resin ratios of 55–70% by weight, compared to 30–50% achievable with hand lamination or vacuum infusion. This directly maximises the load-bearing fibre fraction while minimising matrix mass.

The primary reinforcement is unidirectional (UD) fibre, oriented along principal load paths. Unlike woven fabrics, UDs places fibres in an uncrimped, fully extended state, maximising tensile strength utilisation — typically achieving twice the specific strength of woven equivalents at a fraction of the areal weight.

The matrix is a high-performance epoxy resin system, offering bonding strengths up to 2,000 psi, excellent flexural modulus, and inherent resistance to moisture ingress — eliminating the osmotic degradation mechanisms common to polyester-laminated hulls.

Sandwich core mechanics

Hull panels are constructed as sandwich composites, in which thin, high-stiffness carbon skins are separated by a low-density PVC foam core. The structural analogy is an I-beam: the skins carry bending loads in tension and compression, while the core transfers shear between them. The result is a panel with a bending stiffness-to-weight ratio that far exceeds monolithic laminate constructions, enabling hull structures well below the mass of conventional builds — and a finished Maldivia 45 is capable of exceeding 50 knots.

Low temperature prepreg –
boat baking in an oven

Our prepreg system is a novel low-temperature curing prepreg system, formulated to cure at temperatures as low as 70°C over a 12-hour cycle — matching the throughput of conventional infusion processes without requiring high-temperature tooling investment. The system maintains an outlife of 30 days at 20°C, enabling controlled series production at scale.

Our oven is extendable up to 20m length.

Interface engineering: glue film and surface resin

A proprietary adhesive film is interposed between the fibre laminate and structural foam core. Rather than relying on excess resin migration for core bonding — a common source of weight gain and void formation — the glue film delivers a precisely characterised, laboratory-validated bond at the fibre–core interface. This allows the prepreg itself to carry minimal resin while maintaining full structural integrity at the sandwich interface.

The outer surface employs a dedicated epoxy-based surface resin, co-cured with the laminate in the oven.

Because it shares the same chemical basis as our prepreg system, it re-activates during cure and bonds integrally to the laminate — avoiding the adhesion failures associated with polyester gelcoat applied over epoxy substrates.

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UV Resistant and glossy

The finish is subsequently coated with ALEXSEAL aliphatic urethane topcoat, providing UV stability, colour retention, and long-term gloss durability that conventional gelcoat systems cannot match.