Patented metamaterial
Soundproofingreimagined
Partners & Clients
About Absora-sheet
Absora-sheet is a patented, micro-perforated metamaterial. It absorbs sound across the full spectrum — no fibres, no compromises, fully recyclable.
Why Absora-sheet
Less weight, more impact. Absora-sheet cuts noise and CO₂ alike — and stays fully recyclable at the end of its life.
Cost efficiency
Lower weight reduces installation and transport costs — with no compromise on absorption.
Real innovation
A patented metamaterial instead of classic mineral wool — broadband-effective and fibre-free.
100% circular
Fully recyclable metal — at the end of its life cycle, Absora-sheet becomes material again.
Listen — hear the difference
Tip: switch sources while playing to hear the difference at the very same moment.
Industries
- Automotive
Weight reduction and noise control in truck cabs and engine compartments.
- HVAC & Heat Pumps
Acoustic optimisation of heat pumps for greater acceptance in residential areas.
- Medical & Food
Fibre-free, easy-to-disinfect sound absorbers for clinical cleanrooms, food producers and commercial kitchens.
- Machinery & Plant Engineering
Robust, heat-conducting acoustic enclosures for motors and pumps.
- Energy & Infrastructure
Noise control for ventilation systems, battery storage and PV inverters.
- Commercial Real Estate
Elegant ceiling panels with integrated heating and cooling for modern offices.
- Aviation & Drones
Effective noise reduction for drones in civil and military applications.
How we work
Every project starts with a comprehensive consultation to capture all relevant conditions. After a mutual non-disclosure agreement, we record the current situation, define the target values to be achieved and analyse problems and requirements.
We look at sound pressure levels, frequencies and peaks, heat build-up, insulation and damping, near and far field, as well as the available distance and installation space. On this basis we prepare an initial analysis and recommendation on which solution should be used, choosing from the full range of acoustic options such as porous absorbers, MPA, resonators, VAMM, Acoustic Black Hole (ABH), diffractors, diffusion, insulation, vibration absorbers and other technologies.
In the next step we verify the developed solution directly under real conditions. With our rapid-prototyping kit Soundbuster Auto we come to the customer and first measure the current situation. We then build up a maximum solution and comprehensively measure its effect.
Based on the measurement results we optimise the solution step by step. Through gradual reduction we reach the desired target value with minimal material input, the smallest possible footprint and the best possible cost.
Finally, all results are summarised in a detailed evaluation. It includes before/after comparisons, an OPEX calculation and a clear explanation of why and how individual measures work — and why previous solutions sometimes failed to deliver the desired success. The final recommendation takes into account footprint (transport costs, weight and recycling), technical function and price.
If product developments are carried out as part of the free service, all IP rights remain with ABSORA.
Custom mounting plates are designed to customer specification (drill holes, material type, etc.) and fitted with standardised modules. High delivery availability and economical production in the dark factory are possible from a quantity of just 1.
Highly functional series development — consistently optimised for material, design and powder coating. Material thicknesses from 0.3 to 5.0 mm and almost any material type can be realised on request.
Metamaterial optimisation and design for maximum function with minimal material input.
Multifunctionality to reduce the number of components: several functions are combined in one part, e.g. as a load-bearing component or frame, or to integrate acoustics, EMC, protection, distribution, filtration, catalysis or anti-capillary effect — for a minimal footprint.
Fully automated production.
Testimonials
What our partners say about Absora-sheet
See how our patented metamaterial is already proving itself successfully in the field.
Absora-sheet won us over completely from the start! At very manageable cost we more than halved the noise from our machines — with an exceptionally hygienic solution. On top of that, ABSORA advised us superbly, far beyond what other acoustic consultants offer.
Working with ABSORA is extremely productive. Time and again the team impresses with unconventional solutions to technical challenges — and in record time. Their hands-on mentality and cost awareness help us reach market-ready results fast.
FAQ
Absora-sheet is a patented, micro-perforated metal metamaterial for sound absorption. It works broadband from 250 to 5000 Hz, is fibre-free and 100% recyclable.
Yes. Absora-sheet achieves broadband absorption without mineral fibres while being 60–80% lighter than mineral wool. It works as a fibre-free alternative in many applications.
Because Absora-sheet is made of metal and releases no fibres, it is hygienic and can be wiped down. That makes it suitable for food and medical environments.
In principle, yes — almost any metal works. We usually keep aluminium and stainless steel in stock.
Depending on the chosen metal, almost any thickness between 0.15 mm and 3.0 mm is achievable.
No. Thanks to its very high stiffness, Absora-sheet is completely self-supporting and needs no additional support structure.
Ideally Absora-sheet is mounted with an air gap (cavity) in front of a sound-insulating wall. In some cases that back panel can be omitted entirely — contact us for a customised design proposal.
Through a combination of a mass-spring system and laminar friction. The special lateral micro-perforations make the air spaces in front of and behind the sheet interact, and the integrated structures act as a periodically arranged resonator — making Absora-sheet a true vibroacoustic metamaterial (VAMM). The result is far broader-band damping than conventional solutions.
Conventional absorbers (e.g. rock wool) are built from many layers: support structure, insulation, membrane and perforated sheet. Absora-sheet does away with all of that — it is rigid enough to mount without a frame and only needs air behind it. And unlike other micro-perforations, our manufacturing process needs no expensive lasers or special tooling.
Rock wool or foam insulate heat and take up a lot of space — Absora-sheet does not. So it can be used directly as a heating or cooling surface in wall and ceiling panels, and in ventilation ducts (HVAC) it saves energy by significantly reducing the cross-section of the silencers needed.
You describe the noise problem, we develop a suitable Absora-sheet geometry, install it and test a prototype on site. Write to us at info@absora.eco.
Quieter. More sustainable.
Tell us about your noise problem. We will develop the right Absora-sheet solution.
Start consultation