Application of the DEKOZELL® acoustic plaster system “DISTANCE-Easy” with jointless final coat

Please adhere strictly to the instructions described on the following pages during application–otherwise errors are virtually inevitable.

The application of the system is basically quite simple. The potential for errors is often hidden in the details!

Possible sources of error



Fleece edges not carefully secured–the most important error!

Detachment of fleece areas when the acoustic plaster dries. The area must be sanded down to the board, primed and filled –very time-consuming.

Impact cord used and not sealed with multi.coll

Bleeding of discoloration into the plaster coating. If possible, only work with a laser, without a chalk line.

Fixing rings not filled carefully enough (recess not filled flat).

Acoustic plaster coating then also has a depression above each screw plate, which cannot be removed by sanding. Re-coating necessary. It is better to fill slightly too much than too little.

No reinforcement joint tape over the longitudinal joints.

Risk of fleece detachment during drying of the acoustic plaster coating.

No minimum temperature of 15°C during installation of the Easy-Boards.

No insulating effect of the multi.coll and therefore risk of bleeding of joints and discoloration later with the very wet acoustic coating.

DEKOZELL as acoustic plaster final coat applied in one thick layer instead of two thin layers and with intermediate drying.

High drying stresses in the plaster due to excessive layer thickness and risk of fleece detachment. Risk of sanding through due to uneven layer thickness. Risk of marking of the screw plates due to “collapse” of the acoustic layer.

This list of faults does not claim to be complete. We recommend that inexperienced craftsmen create a practice area or book a construction site training course. These instructions do not release you from the instructions in our technical data sheets!





Substructure made of CD profiles Fine grating center distance 400mm.

Note: It is much easier to screw the system screw into the smooth Knauf profiles later than into the ribbed Richter profiles, for example.

Transfer inspection hatches and other loads to the substructure.

Compression rigid with Knauf Nonius hangers or similar suspended substructure made of Knauf CD profiles 60/27 according to DIN 18182:

Center distance of the base profiles: max. 0.90 m
Center distance of the support profiles: 0.40 m
Spacing of the hangers: 0.80 m
Deflection: Class 1, DIN EN 13964
Corrosion protection class: B, DIN EN 13964
Load capacity: min. 15 kg

Depending on the type of bare ceiling, anchoring must be carried out using fixing elements approved by the building authorities. The substructure must be aligned within a tolerance of +/- 1 mm and leveled horizontally.

Expansion joints for installation lengths greater than 15 m, at constrictions or any expansion joints required in the building in accordance with the regulations for standard plasterboard ceilings must be incorporated as a separation in the substructure and continued as a shadow gap over the planking with the Easy acoustic boards and the seamless final coating.

Use installation parts such as flush light spots or inspection flaps as components for 25mm GK. With a panel thickness of 24 mm for the Easy acoustic board, this leaves approx. 1 mm as a mandatory set-down edge for the acoustic spray filler.

Create the subfloor in such a way that an air-open shadow gap can be created. Therefore, do not use a UD profile as a wall finish for the fine grating of the subfloor.

Transfer the revi flaps and other loads directly to the substructure, e.g. via a 21 mm multiplex board or Promat fire protection board.

For the subsequent screwing on of superstructures such as fire detectors, glue Fermacell or Multiplex supports to the rear when installing the Easy boards.

Cut off the tongue.

Cut the tongue off the first board with a sharp cutter knife. The end profile will then fit better later.

Align the shadow gap

Align the panel to the desired width of the shadow gap. Screw in the screw with washer in the center to attach the panel.

Alternatively, cut the shadow gap later using a shadow gap cutter or mini circular saw with plunge function.

Screw the panel in place

The first screw with fixing ring is placed in the middle of the panel and holds it in position.

Insert the other screws directly into the panel joint. A fixing ring thus always clamps two panels together.

At the edge, allow the panel to cantilever a maximum of 15 cm over the last profile. If in doubt, simply insert an additional CD profile into the substructure.

Tip: A cordless screwdriver is easier to use than the automatic drywall screwdriver.

Apply joint adhesive in a syringe

Apply joint adhesive with the 100 ml syringe.

Apply joint adhesive to the groove
And a narrow track on the tongue

Fill the grooves of the panel that has already been screwed on with multi.coll joint adhesive.

Also fill the next panel on the inside edge of the tongue with a trace of multi.coll.

With the correct filling quantity, approx. 80 ml of multi.coll is used per panel.

The 100ml syringe supplied (Braun Omnifix or similar) is best suited for this purpose.

Always refill the syringe immediately. This prevents the multi.coll from drying on the inside of the syringe.

If the syringe can no longer be dosed correctly, use a new syringe. Then some multi.coll has dried on the sealing rubber and hinders the “soft start” when pressing the syringe plunger.

There should be so much multi.coll in the joint that when the panel is pushed together, some of the joint adhesive always oozes out. As a result, the adhesive also bonds with the outer edges of the fleece and thus secures the fleece.

Slide the tongue and groove into each other

Slide the next panel with the tongue into the groove of the previous panel. The joint adhesive should swell slightly. The swelling also causes the joint adhesive to adhere to the edges of the fleece, thus “securing” the fleece.

Remove the joint adhesive

Remove the swelling multi.coll with the painter’s spatula and put it back in the bucket.

Attention: The multi.coll cannot be washed out of the clothing.

White line of joint adhesive

Ideally, all joints should be visible as a narrow white line due to the swollen joint adhesive. The edges of the fleece are automatically secured against delamination by the adhesive.

Saw a hole for fixtures. If possible, DO NOT use a chalk line!

Use a saw or cutter knife to make the necessary cut-outs in the panel.

If possible, work WITHOUT a chalk line and use a laser instead!

Always apply pressure to the cutting tool when piercing rather than when pulling out so that the fleece connection is not subjected to so much stress.

Dispersion adhesive on cut edges

“Coat” the cut edges with DEKOZELL dispersion adhesive. The best way to do this is to dip a narrow painter’s spatula into the adhesive and then pull the cut edge clean. The dispersion adhesive soaks into the mineral board much better than the multi.coll. Once dry, the cut edge is really hard and the fleece edge is firmly secured to the mineral tile.

Apply edge profiles

Fill a 100 ml syringe with Q4 sealing filler using a narrow paint scraper and apply a trace of Q4 filler to the two inner legs of the corner profile.

Place the profile filled with the Q4 filler on the outer edge and press down. The profile must be filled with enough Q4 filler so that filler oozes out of the holes when the profile is positioned. Remove any excess Q4 filler.

The profile also automatically secures the fleece edge at the front of the panel.

If the ceiling is to be built without a shadow gap, the outer edges must be primed with dispersion adhesive so that the fleece does not come loose later when coating with acoustic plaster.

Filling the screw plates

Fill the screw plates with gypsum filler. As a faster drying alternative to DEKOZELL Q4 filler, the first and second layers could also be filled with Knauf Uniflott. However, the DEKOZELL Q4 filler should definitely be used as the last layer of filler. The white shade of the Q4 then also matches the DEKOZELL coating. All areas covered with Uniflott or Q4 filler are acoustically lost areas! Therefore, use as little filler as possible beyond the screw plate.

Fill the screw plate so that in the end there is slightly too much Q4 filler on it rather than too little!

Sanding the screw plate

Sand the screw plate if necessary. A little too much Q4 filler will not be a problem later on, but too little filler will lead to clear marks later on!

Apply joint tape

Cover at least all 160 cm joints with joint tape. If the 58 cm joints do not have a white line of multi.coll, also cover the short joints.

Mix the acoustic spray filler

Mix the DEKOZELL® Acoustic Spray Filler with 1l DEKOZELL® Acoustic Dispersion Binder and 15l water. Use the DEKOZELL mixing set for this! Stirring rod 160mm basket diameter, 3min stirring time.

Secure joint tape with acoustic filler

The self-adhesive joint tape only sticks for a while. To ensure that it remains securely on top, it is simply removed once flush with acoustic spray filler. This is sufficient to secure it.

Do not use Q4 plaster filler for this!
Only DEKOZELL acoustic spray filler is sound-permeable. The Q4 would acoustically seal all joint areas!

Fill the STORCH plaster gun with DEKOZELL® acoustic spray filler. Nozzle 4mm or 7mm.
Or, as an alternative to the gun, prepare the Inomat M8 spraying machine according to the instructions “Processing with the Inomat M8”.

Fit STORCH cleaning gun with conical 4 mm nozzle made of 4-hole disk and pre-rinse with water before filling. After filling with acoustic spray filler, press the gun firmly onto the floor with the gun handle. Instead of the conical 4 mm nozzle, the faster conical 7 mm nozzle can also be used. Due to the high air volume required when spraying with the air pockets in the spray filler can hardly be avoided. These become visible as pores when sanding.

Note: The O-ring of the STORCH plaster gun quickly ends up in the spout when washing out. For textured final surfaces with acoustic plaster, the DEKOZELL gun no. N429A is required for spraying. The STORCH gun is only for smooth acoustic spray filler.

It is better to use the Inomat M8 spraying machine than the plaster gun. Working with the machine is easier than with the gun, as you can spray from the floor up to a ceiling height of 3.5 m with the machine. Material and air can also be regulated separately – spraying with as little air as possible.

Tip: Place the telescopic pipe in a small leather roofing belt pouch when spraying – similar to a flag carrier.

Rise to working height with the filled gun and apply the acoustic spray filler in even circular movements. The handle of the STORCH spray gun can be placed on the shoulder to relieve the strain. Set the spray pattern as coarse as possible and spray with as little air as possible.

Apply one bag of acoustic spray filler (approx. 20l ready-mix) evenly over 10m². Spray extra thick in the corners and on the edges, as filler will be removed from there when smoothing. After drying, spray another 10m² with one bag – for a total consumption of 5m² per bag.

When spraying with a gun, a small rolling scaffold or at least a plank is recommended. When working on larger areas, the machine is easier to handle. Here too, divide the material consumption strictly according to the area: apply one bag to a maximum of 8m²/4m² – otherwise the layer thickness will be too thin when sanding afterwards.

Due to the long open time of DEKOZELL® acoustic spray filler, an unusually long time is available for smoothing. This means that a single person can do an entire ceiling alone (without expensive surface scaffolding!).

First smooth the edges, then the surface. During drying, the spray filler shrinks by approx. 50% – slight trowel strokes from the application of the smoothing tool are therefore significantly equalized during drying. Draw the trowel completely flat over the surface – without circular movements and without holding the trowel steeper at the end of the stretch. After initial skepticism, many craftsmen describe smoothing with the acoustic spray trowel as “totally different, but much easier”.

After smoothing, remove the blue adhesive tape and tidy up the construction site. There are now almost 4 liters of water per square meter of acoustic surface in the room! To evaporate water, heat is required, at least 20°C – preferably 22°C or even more. We generally recommend the use of fans from the outset. Shock ventilation is not enough, ventilation must be continuous! The use of condensation dehumidifiers in conjunction with fans is better than fans + ventilation. The dehumidifiers must have sufficient capacity! We recommend a theoretical dryer capacity of 3 liters per square meter of acoustic surface (e.g. a 120 liter dryer for 40 square meters of acoustic surface).

The acoustic spray filler must dry completely within 3-4 days!

If this drying time is exceeded, problems such as mildew stains are to be expected.

Final sanding with the 900g lightweight DEROS
Giraffe not recommended, too little control

After drying comes the sanding. We recommend
recommend the Mirka DEROS 650CV eccentric,
not a Giraffe.

Abrasive grit 100 and 15-hole Sandpaper for the first sanding pass use. Always sand in circular movements, just like when spraying or as when polishing car paint.

If necessary, polish with 320 grit Abranet grit.

Place a bag in the vacuum cleaner. The vacuum cleaner’s knock-off device does not work with the cellulose dust.

Thanks to the 48 suction holes in the plate, the DEROS 650CV works practically dust-free. The polishing takes perhaps one minute and is also used for renovation later on.

Please only ever sand in artificial direct grazing light. To do this, place a 200W LED spotlight a tripod directly under the ceiling!

Tips and tricks:

Touch-ups after sanding:

If you accidentally sand down to the fabric in one place or another during sanding, partial touch-ups can also be carried out, at least with the white color. However, the “patch” must be sprayed on (a spray gun is sufficient) – only then will a “frayed” edge form, which usually makes the repair invisible. If the acoustic spray filler is only applied to the damaged area by hand and not by spraying, the edge of the “patch” usually remains visible.


The use of fabric adhesive tape (e.g. Tesa 4363, width 35 mm) has proven to be effective. The fabric tape is waterproof, and the acoustic filler is really very wet. The masking film for the wall can also be clamped under the blue fabric tape. (e.g. cover foil purple no. secure)

Floor covering:

Protect the entire surface of the floor with 0.1 mm construction foil and then again with painter’s fleece because of the risk of slipping due to the long open time of the DEKOZELL acoustic coatings.


We give everything for your smooth result.

Seamless acoustic plaster systems are still a niche product. But one that we live and love. We have specialized in it, are really good at it and do it with enthusiasm. And we offer you and your team the expertise, performance and flexibility you need to get the job done. For both small and large projects.

Vivian Neubauer
Vivian Neubauer
Dipl.-Ing. Printing Technology
Thomas Neubauer
Thomas Neubauer
Dipl.-Ing. Process Engineering, Master of Business Administration

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Sprechen Sie mit unseren Dekozell Spezialisten. Wir machen „nur“ fugenlose Akustikputz-Systeme, das aber einzigartig gut und mit Begeisterung. Und wir legen uns ins Zeug für Sie, um die beste Lösung für Ihr Projekt zu finden.

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„As experts for good sound in a room, a pleasant, natural acoustic atmosphere is essential for us. We advise our customers holistically, with the most suitable absorber solutions for the room and customer. Whether using our invisible loudspeakers SONUS INTARA, which can also be easily accessed again, or the impressive 5,000 square meters of wall and ceiling in the Kunst-Museum Reinhardt Ernst. If you want seamless invisibility, we can warmly recommend DEKOZELL.“

Joachim Kistner, Managing Director
SONUS Acoustic Solutions, Baden-Baden

„We develop tools for creative people to optimize spaces such as recording studio control rooms, recording rooms or concert halls. In 2012, we were looking for a seamless acoustic plaster solution for the redesign of control room 7 at ORF Vienna. All of the competing systems could not be repaired and the trickling onto the expensive sound technology was also unacceptable. With DEKOZELL, we have had a capable acoustic plaster partner ever since.“

Peter Willensdorfer, Managing Director
tonarchitektur Willensdorfer, Vienna

„We build atmosphere for our discerning customers. Mainly for high-quality residential buildings. We strive for an aesthetic that emphasizes simplicity. Rough and sensitive acoustic plaster ceilings have always caused us problems. DEKOZELL, on the other hand, is simple, beautiful and smooth. And gives us a new freedom in design.“

Georg Weber, Architect
Hillekamp & Weber Architecture Studio, Mönchengladbach

„We have already worked with almost all acoustic plaster manufacturers. DEKOZELL was a game changer for us. Absolutely invisible repairs and the very special feel of the surface convinced us completely. Today, we have more than 30 people working on the acoustic spray filler and use several spraying machines.“

Jörg Held, Managing Director
Steuernagel & Lampert, Painting company, Groß-Bieberau

„Acoustic plaster is a top priority for me. Because DEKOZELL acoustic plaster systems are usually included in the painting tender, I have already received several villa projects as a complete order. Sanding really does the trick. Difficult installation situations or quick repairs are no problem. I also really like the DEKOZELL sealant for the edge connection, which looks exactly right.“

Peter Rumohr, Master Painter
Malerwerkstätte Rumohr, Krefeld

„We create color concepts and develop extraordinary surfaces with sensitivity and aesthetics surfaces that emphasize uniqueness. Room acoustics are a central theme here. In DEKOZELL, we have found a partner with whom we can meet the high demands of our customers.“

Harald Jehle, Master of Colors
polychrom Jehle, Weingarten

„We have been processing DEKOZELL for many years now. As a two-man business, we can therefore get involved in what is an extremely interesting and lucrative market for us.“

Hermann Kilgus, Master Painter
Kilgus Painting and Varnishing company, Leutkirch

„I was highly skeptical at the beginning. Our customer wanted FLEXOPANEL on the ceiling and on a large wall. We’d never done that before. Through WhatsApp video calls and top work instructions, we grew into it step by step. We are delighted with the result. And so was the customer.“

Enes Zhegerova, Fabricator
Dietrich Plasterer & Color Design, Wüstenrot

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