Excellent strength to weight. An all-purpose grade used in multiple industries
High-temperature resistant core suitable for prepreg applications
High-performance core for extremely demanding applications such as fast marine hulls
Superior strength to weight. Used in multiple industries, including wind and marine
A PET core with excellent FST properties used in transport and construction industries
A recyclable core material used in a variety of applications such as domes and claddings
Well-suited for use as local inserts in the way of fittings, either tapped or bolted through
A thermoplastic core material designed to increase performance and decrease weight
An aerospace core available with comprehensive quality documentation and traceability
A sandwich core with excellent FST properties, suitable in commercial aircrafts interiors
Core material for subsea applications, used from sea level to 700 meters depth
A deep-water subsea syntactic foam used for depths from 700 to 10,000 meters
A core with excellent insulation properties, for low and cryogenic temperatures
Used in marine and wind applications in combination with foam
A selection of the most widely used and preferred finishing options
At the Düsseldorf Boat Show in January the Dufour 405 Grand Large was voted European Boat of the Year 2010 in what is arguably the most competitive category: cruising yachts. Key elements of the 405’s design include a fast hull, large interior volume, a clear deck and a comfortable cockpit.
As the award demonstrates, after nearly
of boatbuilding, Dufour Yachts
continues to maintain its position as one
of the leading producers of monohull
Diab cores (both in plain sheet
and kit form) are used for the hulls and
decks of the company’s entire ten-model
product line, which ranges from 10.08
to 15.32 meters (33-40 ft.) LOA.
Leading through technology
Based near LaRochelle in France, the
Dufour yard has invested heavily in new
technology to further improve quality, reduce structural weight and speed build times. Different construction techniques are used, depending on the type and size of component, in order to achieve an ideal balance between cost and performance.
Decks below 12 meters (40 ft) are
produced in an RTM Lite process, while
larger decks are manufactured with
infusion technology. The RTM Lite
process uses matched moulds. Pressure
is applied, and resin flows through the
reinforcements and over the core due to
a combination of low-pressure injection
and the existing
vacuum. For both RTM
Lite and infusion, the core is supplied to
Dufour in perforated form by Diab to
facilitate resin transfer.
This combination of processes and the
use of sandwich composite technology
throughout allows Dufour to achieve
substantial weight reductions (up to
40%) when compared to more traditional
methods. In addition, notable performance
gains are made in terms of
strength and rigidity. These weight reductions
significantly lower a Dufour
yacht’s center of gravity, thereby improving
overall sailing performance.
same time, the company is able to offer
than many rival yachts
while still retaining the flowing lines
that are a Dufour ‘trademark’.
Get as PDF
Diab has been at the leading edge of composite core material development for over sixty years, supplying a wide range of markets including marine, wind energy, transport, aerospace and industry.
Diab is wholly owned by Ratos.
Diab International AB
Drottninggatan 7, 5th floor
252 21 Helsingborg, Sweden
312 22 LAHOLM, Sweden
Tel +46 (0) 430 163 00