GUNSAILS | Seal - Compact Wave Windsurf Sail
GUNSAILS | Seal - Compact Wave Windsurf Sail GUNSAILS | Seal - Compact Wave Windsurf Sail GUNSAILS | Seal - Compact Wave Windsurf Sail GUNSAILS | Seal - Compact Wave Windsurf Sail GUNSAILS | Seal - Compact Wave Windsurf Sail SEAL 2020 SEAL 2020

SEAL 2020

2-3 Tage


The Wave Machine Seal presents itself with the well-known range of use, but does surprise with new abilities for 2020. Thanks to the redesigned geometry the 4-batten-compact wave sail shows even easier handling and improved on/off. With its vast wind range and effortless control, the Seal does not only perform in radical wave manoeuvres but does also prove amazing high wind capabilities. We could transfer many aspects from the development of the premium Wave Sail SEAL Membrane to its little brother, the Seal.

Windsurf Segel Programm Windsurf Segel Character

> 4 - Batten sail with reduced weight
> Compact outline with improved ON/OFF
> Offset Clew: two eyelets allow adaptation of the sail for more power or control
> 100% X-Ply for extreme conditions, light Square-Ply in the top
> Preference for RDM, but SDM still possible


Only a limited number of items will be available on the specified delivery date. Allocation will be made according to the date of receipt of the order. If the delivered quantity is not sufficient, we will inform you about a later delivery date. So order now!

Now Only €355.00 Regular Price €399.00
Incl. VAT, excl. Shipping Cost

Within the redesign we changed the luff curve of the smaller sizes to reduce the body tension and optimize the adaptability of the leech. This does not only increase the control but also the reactivity of the sail. At the same time, we flattened the profile below the boom to enable direct reactivity. Thanks to the optimized profiling the sail feels even lighter in hands and has absolute neutrality while wave riding. Through the new assembly of 3 mil square ply we managed to save some weight in the upper area of the sail resulting in further improvement of the handling. Within the construction of the Seal we positioned new Kevlar lines to define the stretch properties and secure the durability of the sail.
Through the redesign the Seal jumps up to the next level and sets a new scale inside the Gunsails wave range. With its playful handling and exactly the right amount of drive, the sail is not only the first choice of our professional wave riders but also for windsurfers of all levels.



Battens Top IMCS Best Mast Mast
cm / Ø
3.2 143 345 4 vario 15-18 Cross/Expert/Select 340/370 RDM/SDM 399,- 355,-
3.5 146 350 4 vario 15-18 Cross/Expert/Select 340/370 RDM/SDM 439,- 375,-
3.7 149 357 4 vario 15-18 Cross/Expert/Select 340/370 RDM/SDM 445,- 379,-
4.0 152 362 4 vario 15-18 Cross/Expert/Select 340/370 RDM/SDM 449,- 385,-
4.2 156 367 4 vario 15-18 Cross/Expert/Select 340/370 RDM/SDM 459,- 395,-
4.5 160 382 4 fix 16-18 Cross/Expert/Select 370 RDM/SDM 469,- 399,-
4.7 164 386 4 fix 16-18 Cross/Expert/Select 370 RDM/SDM 479,- 409,-
5.0 169 393 4 fix 16-18 Cross/Expert/Select 370 RDM/SDM 489,- 419,-
5.3 176 413 4 fix 18-20 Cross/Expert/Select 400 RDM/SDM 495,- 425,-
5.7 179 421 4 fix 18-20 Cross/Expert/Select 400 RDM/SDM 499,- 435,-



GUNSAILS | Sail Features - F.R.E.D.

F.R.E.D. will help you to fi nd the optimal luff trim for your sail. The mark is found in the upper sail window and serves as an orientation point to create the perfect luff tension (loose leech).


GUNSAILS | Sail Features - Top Guard

The large reinforcement at the sail top avoids abrasion and wearing out whilst rigging.


GUNSAILS | Sail Features - Vario Top

The top opening is enlarged for an easier mast insertion. The adjustment buckle is placed behind the mast; unnecessary webbing can be stowed in the top opening.


GUNSAILS | Sail Features - Mini Battens

Lightweight mini battens take control of the leech while twisting and avoid detrimental leech fl utter. In this way, the window fabrics are spared and the longevity of the sail is predefined.


GUNSAILS | Sail Features - Batten Guard

PVC tabs on the upper batten pockets prevent wearing out and abrasion whilst rigging.


GUNSAILS | Sail Features - Internal Trim Batten

The Internal Trim Batten system is completely integrated into the batten pocket and the battens can stay tensioned in the sail. The profi led end piece offers additional protection against abrasion.


GUNSAILS | Sail Features - Pocket Guard

A PVC braid, sewed on the bottom batten pocket, protects your sail from abrasion while uphauling and waterstarting.


GUNSAILS | Sail Features - Reduced Boom Length

The Reduced Boom Length design shortens the boom length. The handling is much easier and feels more compact. The sail control is signifi cantly improved. A shorter boom is generally stiffer and will assist in maintaining the sail stability and profile.


GUNSAILS | Sail Features - Offset Clew

The Wave sails are equipped with 2 clew eyelets which are set asymmetrically for individual tuning:

Upper eyelet for more power
Lower eyelet for more control


GUNSAILS | Sail Features - Trim Setting

The boom length is printed beside the clew. The mast lenght is patched on the mast protector.


GUNSAILS | Sail Features - Boom Position Control

The printed height scale at the boom opening helps you to easily remember your personal boom position.


GUNSAILS | Sail Features - Double Lock Seams

Double seams form the most stable connection between individual panels and different materials. They are used in stress zones as well as in areas of high tension and make your sail robust and durable.


GUNSAILS | Sail Features - Foot Guard

All seams in the significantly stressed foot area are protected by Dacron coverings. A PVC edging from foot to the first batten protects the leech edge against your board’s nonslip coating.


GUNSAILS | Sail Features - Comfort Pulley

The integrated triple pulley has large easy turning stainless brass rolls which greatly reduce the effort required for sail trimming. Also, if you prefer, the rolls are removable to allow the use of standard downhaul pulley hooks.


GUNSAILS | Sail Features - Sleeve Volumer

The GUNSAILS logo that is sewn on the sleeve keeps it open at the boom opening area like a clip and thus mast insertion is much easier.


GUNSAILS | Sail Features - Strap On

For very easy packing away and storage: Just roll the sail up and fix the elastic retainer.


GUNSAILS | Sail Features - Mesh Pocket

On the inside of the protector you will find a closable mesh pocket which can hold e.g. your downhaul surplus.


GUNSAILS | Sail Features - Mast Foot Protector

The large mast foot protector can be pulled back whilst rigging. The loop eases the initial pulling down of the sail. The uphaul can be comfortably inserted through an opening in the protector.


GUNSAILS | Sail Tech - Intelligent Material Assembly

The well designed combination of different materials allows weight savings without losing stability. By varying the stretch behaviour of the individual materials, we can precisely define each sail profile under pressure and guarantee you consistent sailing characteristics over the long term.


GUNSAILS | Sail Tech - Tension Frame

The Tension frame forms a functional unit with the smart clew construction. It is built from multidirectional x-ply and framed with insignia. Therefore it can resist maximum stress levels. The Tension frame receives the force from the clew and distributes the tension with the additional warp lines into the sail. The layout of the tension frame is designed to support the individual profile of every sail. Conclusively the tension frame improves the response of the sail and increases the profile stability. It also ensures long lasting sail characteristics and improves the overall durability of the sail.


GUNSAILS | Sail Tech - Double Lock Seams

Double Seams provide the most stable connection between panels or different materials. They find use in areas of high material tension and make your sail tough and durable.


GUNSAILS | Sail Tech - Smart Clew Construction

The Smart Clew Construction is based on the tension specific and precise alignment of different materials. The result is an extremely durable clew area without additional weight. Depending the sail the layout of the materials varies in order to suit the resulting tension lines in order to distribute the force from the clew, towards the Tension Frame into the sail. That helps to create more response, better profile stability and long lasting sail characteristics.


GUNSAILS | Sail Tech - Kevlar Stretch Control

Through the selected use of kevlar warp laminate, we are able to precisely define the stretch properties of every sail. This leads to more response and a long lasting and stable sail profile. The light and unidirectional kevlar threads show very low stretch, even under highest loads. They are individually positioned in each sail to suit its range of application, leading to long lasting performance and sail characteristics.


GUNSAILS | Sail Tech - Multidirectional X-Ply

Multidirectional X-Ply is used in high stress areas. The thread layout shows a higher density of polyester yarn, thus making the material more resistant than the regular X-Ply. The additional vertical thread direction allows the material to take more tension and force in the critical tension line.


GUNSAILS | Sail Tech - Square-Ply

The square ply is based on the same concept as X-ply material. However the threads are aligned in a 90 degree angle and the material offers a higher overall thread density. That allows us to reduce the thickness of the included monofilm to save weight, but ensure durability at the same time.


GUNSAILS | Sail Tech - X-Ply

X-PLY the all time classic of the reinforced laminates. It is light, stable and has a good transparency. Therefore it is used in the window area of the Wave-and Cross Over Sails. X-Ply also does withstand higher punctual stress. In case of a cut, the threads avoid further damage because they stop the cut from spreading through the window.

SURF MAGAZIN 05-2020 | SEAL 4.2 2020

GUNSAILS | Test report Windsurf Wave Sail Seal Windsurfing Surf Magazine

With a flatter profile and less luff curve, manufacturer GUNSAILS wants to make the Seal 2020 more manageable and neutral. A label helps to find the right luff trim, the trim forces are - probably also due to the short 340 mast - pleasingly moderate. The changes on the sail show immediate effect on the water. Despite the short 340 mast, the Seal feels relatively firm even in the hands of heavy surfers - even in gusts nothing flutters or wobbles. The price of the flatter profile is a smaller loss of planing performance, which the sail can tolerate, but in return it gains a lot in other areas: draft stability and wind range in one trim are convincing all along the line, the Seal lies balanced, stable and very easy to sail in the hand - this is an advantage for both cracks and less experienced surfers. The wave riding characteristics have changed from "very powerful" in 2019 to "balanced". The Seal still offers enough power for crashing cutbacks in sideoneshore conditions, because it always keeps some basic pull on the back hand. But now it also has a minimum of neutrality for exquisite sideoffshore waves and freestyle tricks.

Surf conclusion: GUNSAILS has worked on the right screws and tuned the seal more universally. With a convincing combination of power, control, drive and off, wave surfers from Fehmarn to Fiji as well as flat water racers will now be equally happy.


GUNSAILS | Test report Windsurf Wave Sail Seal Windsurfing Jahrbuch

ON THE BEACH: The Seal is the compact handling sail from GUNSAILS. The measurements remain unchanged for the third year, as does the exemplary feature set. There is plenty of X-Ply in the sail. In the main window it is quite large meshed to allow an almost clear view of the wave lip. Still the long batten above the clew is conspicuous. The new stitching in the top, which we praised last year - which significantly improved the seal's control and twist - has disappeared. In the upper sail panel there is now a continuous square-ply panel, which is supposed to push the sail weight further down. We experimented a bit with the rigging and trimming and pulled the luff a few centimetres further than indicated. This makes you aware of the most important innovation: If the luff is well tensioned, the lower three battens still show a beautiful, pre-shaped sail belly with a clearly pre-tensioned profile.

ON THE WATER: Directly after the start you notice that the Seal has changed a lot, because the sail is much firmer in the hand than in previous years. And so much in the beginning: This is really good for the sail! The boom is one of the longest in the wave test, which is a matter of taste and the spirits in our test team were somewhat divided. But the team around sailmaker Renato Morlotti has done its homework. If the Seal was a relatively special product with a limited target group last year, this will no longer be the case in 2020. Because it is now an entirely good sail. The planing performance has been noticeably improved, it is no longer behind others. Also the control in strong winds is now excellent. A real plus when it comes to jumping is also the top speed. It is also very impressive. We were excited to see how the sail would perform on the wave. There it's easier to hold and can be directed faster than last year. It offers a mix of neutrality and drive that tends to be more OFF when steered with the back hand. Thanks to the precise handling it can be put down very well in the bottom turn and thus be set neutral by riding technique.

CONCLUSION: The GUNSAILS Seal is a positive surprise and will be on the market in 2020 with a strong improvement. Thanks to better planing performance and controllability, it is not to be criticized as an all-round sail for any wave conditions. With a firm feel and control, the Seal is now also fun on the straight and offers precise handling on the wave.

WINDSURF UK JAN-FEB 2020 | SEAL 5.0 2020

GUNSAILS | Test Report Windsurfing Wave Sail Seal Windsurf UK

OVERVIEW: The Seal is Gunsails’ 4-batten compact wave sail, sitting alongside the five-batten Horizon and championed by notable team riders such as Florian Jung. For 2020, there is also an eye-catching Seal Membrane available - a four batten wave sail, constructed in a single-piece 0.7mil film with Technora fibres sandwiched in such a way that the forces are absorbed and dispersed evenly, leaving a light and extremely direct feeling sail. Back to the standard Seal on test and it is the only 5.0m sail here to set on a 370cm mast, its outline short and relatively boxy. Build quality is good, with x-ply of various weights used throughout its panels and plenty of detailing on show, such as beading along the length of the bottom batten, a seamless foot panel, and the tack roller oriented for easy downhaul. It was rigged for test on a 100% Select mast, although is still said to be compatible with an SDM if desired.

PERFORMANCE: Sheathing the mast easily into the Seal’s head-cap, it is clear that there’s plenty of luff curve in the sail, the downhaul nonetheless easy to apply thanks to the softer mast. Gunsails’ handy trimming guide FRED was not present on our test version, although this is due to it being one of the first off the production line; all future versions will see FRED return. Apply tension and the leech opens progressively along its length, with plenty of looseness in the ‘double mini-battened’ top panel. There is then only a subtle amount of profile in the batten below the boom, the Seal setting flat and neutral above, with both lower battens keeping rotation around the mast. In marginal winds the top clew eyelet was utilised, giving the boom a little more leverage and the sail's power more purpose. Light and easy at rest, as the wind fills the sail breathes into a deeper profile, aided by the movement in the Dacron luff panel and luff sleeve. It is also very pumpable thanks to the longer boom length, the flex in the softer mast and the amount of area low down in the sail. Once going the Seal settles into a comfortable cruising stance, the centre of effort focussed low and forward in the draft. Easy and forgiving to use for long periods, you’d be excused for thinking the Seal is a user-friendly high-wind freeride sail! The low-cut foot shape, soft progressive power delivery, and high rake to the boom angle (even more so in the lower clew eyelet) makes it a pleasure to use, and very accessible for novice sailors and pros alike. Used in heavy coastal seas the Seal can act as a blasting weapon, the upper panels twisting smoothly as the draft’s softness absorbs any jarring forces from the terrain, its low power position pinning the board down to the water’s surface and mitigating any board control issues. It means the active rider can charge out and hit ramps at will, the sail feeling compact and manageable in the air. Yet use the Seal in a manoeuvre role and you’ll not be let down either. The power provided into transition is smooth and measured rather than sharp or assertive, but power it up properly and it provides enough for most, encouraging a more flowing surf style, going wonderfully light and neutral as it is turned off mid-turn.

THE VERDICT: A compact feeling all-round contender with impeccable manners, the Seal offers soft progressive power and real versatility in its application across an impressive range. If 5.0m is your biggest wave sail, there’s the added practicality that one mast could satisfy all, and at €489, it represents excellent value for money.


GUNSAILS | Test Report Windsurfing Wave Sail Seal Wing Magazine

Finesse and lightness in clear progress

DESIGN: This year the Gun Sails Seal continues to evolve quite a bit with a modified luff curve, a re-balanced and flatter profile in the lower part of the sail. The sail top uses 3 mil square-ply fabric to reduce weight in this crucial area, while Kevlar fibers are incorporated into the construction to control the elasticity of the sail over time.

ON THE WATER: On the water the changes of the seal are immediately visible. You feel a much lighter sail in your arms than in the past, with a different profile. The profile entry is slimmer and the possibilities to neutralize the profile are greater. The developed performance is still very correct, although this sail is a bit less forward oriented than in the last years, but still effective when planing, accelerating or in its whole agility. It is a particularly stable sail, with a pressure point embedded in concrete and which can be hold easily in strong winds. The Seal is very flexible in the top and works very well to offer a lot of comfort while surfing. In the surf, it is easy to find support on the backhand to restart and accelerate. Its gain in finesse and lightness in the sail top increases its handling and its ability to fully switch off its performance in waves for example. The responsiveness is there, and the gain in finesse does not stop you from powering up sail pressure to make a move.

CONCLUSION: All in all, Gun Sails offers a new Seal that has been significantly improved in terms of handling, finesse and responsiveness to ride modern boards even more comfortably and effectively in the waves. It gains in versatility, especially since its range of use is still quite large. A very good vintage.


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