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Duotone have just released their exciting new wave boards, the GRIP 3 D/LAB & GRIP 4 D/LAB. Here is what they have to say about their last product launch for this calendar year. It sounds like they have saved the best until last!

For those of you working with other Duotone departments, you will be familiar with the D/LAB concept, however for those that are not, D/LAB is short for Duotone Laboratory where we are innovating and developing new technologies and concepts not used by anyone else in the industry. The D/LAB stamp is reserved only for real game-changer products. For these special boards, we made a special shooting up in Cold Hawaii with superstar talent, Marc Pare, and up-and-coming Danish Young Blood ripper, Tobias Bjornaa. Photos are by Jens Hogenkamp.

So what is it that is so special about these boards (as well as the FALCON_FIN D/LAB) to allow them to become the first D/LAB products under DUOTONE Windsurfing? Honestly, it’s all in the construction. For the last 3 years, Dani Aeberli and Vasin Sithiro have been working on a new technology that bring custom-made constructions to the production windsurfing market. The strongest and lightest boards were previously reserved for the custom-made market, where there is always a risk that the shape and performance is not as you hoped. We are putting an end to this with our D/LAB CUSTOM-MADE CNC CONSTRUCTION! The proven shapes you know and love but constructed using custom-made construction practices to give you the ultimate windsurfing board beyond your imagination! 

Going beyond your imagination. Do you want to have the lowest possible weight combined with maximum stiffness and durability even the most high-end custom board maker can promise?

Everyone strives to be different and thus loves individualisation. But do you want to buy a surprise egg that custom boards often turn out to be? Or do you want to trust in a proven shape by a brand which has continuously been at the forefront of the board development with over 40 years of experience.

Look no further because here comes the D/LAB board range.

At DUOTONE only real game-changer products qualify to carry the D/LAB logo. So what is it that is so special about these boards to allow them to become the first D/LAB products under DUOTONE Windsurfing?

During the last 3 years our product manager boards Dani Aeberli and our QC specialist Vasin Siritho have worked on a new technology which is exclusive for DUOTONE. We call this CUSTOM CNC SANDWICH.

We use a construction which is one hundred percent identical to the most high-end custom-made boards. Instead of using a mould to bring the EPS foam core into its final shape each EPS block gets CNC milled. This ensures maximum precision and saves weight.

As with high-end custom board makers the major advantage lays in the processing. We call this SINGLE PROCESS TECHNOLOGY and it is the key to our industry-leading weight-strength ratio. Instead of combining working steps to save time and money, every single step follows its individual process. For example, instead of joining the PVC sandwich with the EPS core in a single shot we vacuum-bag the top and bottom PVC shields with the EPS core separately.

Further, instead of using standard 3mm PVC elements for the

entire board we use thicker and thinner PVC plates as well according to the stress areas which makes the board lighter yet stronger. For all D/LAB boards we use our most sophisticated layup which consists of more than 60 individual parts and components (nearly 20% more parts than used for our SLS Premium Sandwich Construction).

On top we are using the most high-end composite materials available to-date.

1. All carbon fibres used are a mix of high strength and high modulus carbon qualities depending on the individual requirements of each board section. Our high modulus carbon used can also be found on high-end products like aircraft’s, Formula One cars or our Platinum SLS masts, booms and extensions.

2. Innegra is a high modulus Propylene with unbeatable tensile and ding resistance

3. We use our exclusive high performance S-glass fiber with an extra high silica content which offers much higher tensile strength as well as about 10-20% greater stiffness.

4. And finally we are using our exclusive DUOTONE SENTEX resin impregnated with silicon nano-spheres which helps us to reduce the weight even further without sacrificing durability.

Instead of using a similar layup on all boards we use a DISCIPLINE SPECIFIC FLEX CONSTRUCTION for all our D/LAB boards since demands on the different disciplines (wave, freestyle, freeride, racing) and conditions vary quite a lot.

1. Racing boards are made to offer maximum performance (instant acceleration and V-max). Therefore, these boards need be as stiff as possible. To achieve this no compromise stiffness we use a super high carbon content on all FALCON D/LAB layups.

2. On wave boards though a certain “give” is essential since these boards are very short and might become too stiff thus uncontrollable using a full carbon layup. Therefore, the GRIP D/LAB boards come with a higher Innegra + S-glass content. These high-tech composites have a much higher tensile strength avoiding breakages after high landings. To still achieve an outstanding “spring-back” characteristics which makes the board more reactive and has a tremendous effect on the acceleration we use unidirectional Carbon reinforcements in longitudinal direction.

Last but not least, every single board size has an individual layup. That’s the final stage of individualisation in construction.

The result speaks for itself since the D/LAB boards are approx. 500 grams lighter than our SLS boards and up to a full kilo lighter than any other serial production board. It is truly the first time that a production board can compete even with the lightest custom boards out there. Yet all of this is achieved without any sacrifice in durability since we always follow our core motto LIGHT DONE RIGHT.

Please note that at least in the first year, quantities will be strictly limited – just like a real custom board. That’s why only the most popular GRIP 4 and GRIP 3 sizes will be available in D/LAB technology.


Our GRIP D/LAB boards are constantly evolving designs and constructions to ensure we are continuously at the forefront of development yet with over 40 years of experience. We call them World Cup Wave boards as they are engineered to satisfy the best of the best on all kind of spots around the globe, from jumping-oriented side-on conditions like Pozo to down-the-line groundswell conditions like Hookipa.

Now the most important question you need to ask yourself is which fin configuration best suits your personal riding style:

· The GRIP 4 with its Quad fin configuration gives you maximum drive and grip for committed rail to rail turns, even in XXL waves

· The GRIP 3 has a slightly better acceleration due an efficient rocker with a lower-drag entry, which is especially helpful in jumping conditions. The Thruster fin

configuration allows for earlier tail release for tighter/slashier turns, even in non-ideal waves



+ Fin configuration: Quad for maximum drive and grip

+ Rail shape: thinned out rails towards the tail and nose for maximum drive

+ Deck shape: reduced dome deck shape results in a more stable/balanced stance, especially in drift & ride conditions

+ Outline: approx. 6cm longer than the GRIP 3 D/LAB with a very similar max. width. The narrower nose and swallow tail result in a more curved rail outline in the middle to balance the enormous grip of the 4 fins.

+ Bottom shape: progressive double concave V front to back – ideal compromise between performance, manoeuvrability and control

+ Rockerline: slightly more nose and tail rocker. The tail rocker balances the enormous grip of the 4 fins.


+ Fin configuration: Thruster for better acceleration and earlier tail release

+ Rail shape: only slightly thinned out rails in the tail and nose, ideal for slashy turns

+ Deck shape: reduced dome deck shape results in a more stable/balanced stance, especially in drift & ride conditions

+ Outline: approx. 6cm shorter than the GRIP 4 D/LAB with a very similar max. width. The wider nose and swallow tail result in a more parallel rail outline in the center to balance the slashy Thruster fin configuration.

+ Bottom shape: progressive double concave V front to back – ideal compromise between performance, manoeuvrability and control. The unique tail channel provides additional grip for the Thruster fin configuration.

+ Rockerline: disconnected Rocker – faster surfing scoop-rocker line in the center combined with more rail rocker due to the progressive V in the tail. The slightly reduced center rocker prevents the Thruster fin configuration from releasing too early.





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