Acospray DC3

This composite, featuring a coarse spray texture of binder and cellulose fibers, allows for flexible application from 10 to 45 mm. With numerous variants and fantastic absorption in the speech frequency range, the DC3 is definitely our go-to spray plaster.

Order samples

Acospray DC3 is also available in your desired color.

Specifications

Acospray DC3 is our go-to sustainable, sound-absorbing spray plaster. It's a two-component system, combining a binder with enriched, recycled cellulose fibers. To really get the most out of its outstanding acoustic performance, we suggest applying the material in a layer thickness ranging from 10 mm up to a maximum of 45 mm.
We apply the material using a specialized spray technique, where multiple layers are cross-sprayed. This results in a surface with a coarse-grained, diffusion-open spray texture.
Acospray DC3 can be applied to almost any substrate. Thanks to its hygroscopic properties, you can even use it in swimming pools or for expanding living spaces, like on balconies. Once dry, it's super lightweight, coming in at just 1.3 - 1.8 kg/m² per 10 mm of applied thickness.
You can also get Acospray DC3 in our Green Line variants: Billboard Grey and Apple Grey.

Download data sheet

- Cradle2Cradle Institute, achieved certification level: Cradle2Cradle Bronze
- MRPI (Dutch, environmentally relevant product information), ISO 14025 Environmental Product Declaration: compliant
- MRPI, LCA according to the determination method of the Dutch Stichting Bouwkwaliteit (Construction Quality Foundation), MKI (Environmental Costs) A-D 0.24ct/m² for the mass-supported variant
- Frauenhofer, DIN EN 16516, VOC, meets requirements for construction products regarding VOC and SVOC 2015/NIK list 2015: fulfilled
- Intertek, ASTM Standard D7234, adhesion strength ≥ 736 to ≤ 12600 self-weight
- Intertek, ASTM Standard C1338-19, microbiological resistance, compliant
- Intertek, Standard ISO105-A02, color change, Class 5
- Efectis, 1350-1:2018, B-s1.d0, plus the new borate-free variant B-s2.d0, which aligns with fire behavior group RF2 of the VKF fire protection guidelines in Switzerland.
- White
- Cool Grey
- ILA (Concrete) Grey
- Oman Grey
- Black
- Terracotta
- Blue
- Green
- Many other specific colors are available. The coloring is achieved by adding pigments to the binder.
You can remove dust and cobwebs using a vacuum cleaner with a soft textile nozzle attachment. Another option is dry ice cleaning. If you'd like, we're happy to offer a maintenance contract for both methods.
Small repairs are done manually, medium-sized repairs with our mini-machine (38 kg), and large repairs are carried out using the standard spray equipment (200 kg).
The material can be over-sprayed using an airless spray technique. Applying paint with a roller is not recommended.
After moistening and allowing it to soak for 24 hours, the material can be easily and completely removed without residue.
- The substrate must be clean, dry, and airtight (drywall joints need to be sealed).
- The surface quality of the substrate determines the flatness of the final result.
- Acoprimer enhances adhesion, prevents bleeding, and stops the substrate from becoming saturated with moisture.
- Junction boxes and similar components must be extended by the thickness of the insulation layer.
- If you can't achieve a flush finish with a wall or window/door frame, you'll need to install an edge profile of at least 10 mm thickness.
  Metal parts should be pre-treated against corrosion.
- Installation using mobile scaffolding or lifting platforms.
- Processing temperature ≥15°C
- Installations/wall sections are sprayed with a standard thickness of 10 mm.
- To speed up the drying process, we recommend using fans and construction dehumidifiers; a moisture meter is provided for monitoring.
- For spotlights, there are sleeves or 3D-printed constructions.

Nidera%2BOffice%2B3%2BAcospray%2BDC3%2BApple%2BGrey.jpg

Acoustic Values

Build-up

10 mm

15 mm

20 mm

25 mm

35 mm

2kHz

0.81

0.95

1.00

1.02

1.00

αw

0.45

0.55

0.60

0.75

1,00

NRC

0.55

0.70

0.80

0.85

0,90

For our building acousticians

All our products' acoustic values, compared at a glance.

Download values table

Sample Order

We're happy to send you up to 3 samples free of charge. If you need more than 3, we'll charge CHF 25. You can check out all available samples under 'Sample Order'.