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Thermal-Acoustic Insulation Mat

Ultrakustik GW-Eco is a new eco–friendly and safe material for effective sound absorption.

High Level of Sound Absorption

Ultrakustik GW-Eco is filled with staple fiberglass with a density of 40 kg/m3 (2.4 lb/ft3) due to which it effectively absorbs sound energy

Sound absorption index: αw 0.6

Eco-friendly and Safe Material

Ultrakustik GW-Eco is eco-friendly and is recommended for use in all types of premises, including childcare facilities.

It contains no phenol-formaldehyde resins. Non-flammable and absolutely non-toxic staple fiber filler with a safe white acrylic binder, which does not emit hazardous substances even when melted, is used for the mat production.

Resistant to External Influences

Ultrakustik GW-Eco sound-absorbing mat does not contain nutrients for microorganisms and mold to develop.

It does not absorb moisture, and in case of accidental wetting, water rolls down without penetrating inside, leaving the surface dry.

Due to its high density, the material cut does not produce dust, and the cover made of a special membrane completely eliminates emission of particles.

Features of the material usage, ready-to-use soundproofing structures and examples of implemented projects can be found in the "Usage" tab.
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Maintenance info

Composition and description

Ultrakustik GW-Eco sound-absorbing layer is elastic and absolutely non-toxic staple fiberglass on a white acrylic binder enclosed in a shell of specialized non-woven fabric that allows complete elimination of the filler particles emission.


Ultrakustik GW-Eco rolls should be stored stacked on pallets or pads. The stack height during storage should not exceed 2 m (6.6 ft.).

Features of the material usage

Ultrakustik GW-Eco is easy to use and quick to install. It does not get caught around the drill when drilling and does not dust on the cut.

When installed behind a stretch ceiling, it effectively reduces rumble and improves acoustic comfort.

When soundproof structures are used for the ceiling and walls, it provides additional sound absorption and thermal insulation.

It is also used as a sound-absorbing layer for frame structures.

Ready-to-use constructions with Ultrakustik-GW Eco

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Installation guides, video instructions, certificates, acoustic measurement protocols and other materials for download can be found in the "Support" tab.
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Physical Properties

Sheeting length:
7,5 m (25 ft.)
Total sheeting width:
1,2 m (4 ft.)
Effective sheeting width:
1,15 m (3.8 ft.)
Sheeting thickness:
25 mm (1 in)
Package weight:
10,15-10,5 kg (23 lbs.)

Physical and Technical Properties

Thermal conductivity:
not more than 0.034 W/(mK)

Acoustic Characteristics

Sound absorption index αw when mounted without a gap between insulation and the insulated surface:


Features of the material usage, ready-to-use sound-proofing structures and examples of implemented projects can be found in the "Usage" tab.
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Questions/reviews from site visitors

Please note! In order to avoid spamming the page, questions are pre-moderated before publication. Therefore, the submitted question does not appear on the page immediately.
Edvard 27 January 2023
Can Ultrakustik GW-Eco be used under a screed?
Expert answer

No, the material is not designed to be used under a screed.

Radoje 27 January 2023
Is Ultrakustik GW-Eco the thinnest option for soundproofing a ceiling?
Expert answer

Use of Ultrakustik GW-Eco for the ceiling is not an independent solution for sound insulation; it provides indirect reducing resonance effect when installed behind a stretch ceiling. It is recommended to use ZIPS III-Ultra/ ZIPS Vector products as the thinnest ceiling soundproofing solution.

Zoran 27 January 2023
Is Ultrakustik GW-Eco used as part of soundproof structures or only as part of sound-absorbing ones?
Expert answer

Ultrakustik GW-Eco can be used as a sound-absorbing layer in both soundproof and sound-absorbing structures.