ADR® Technology – a Polish invention protected by patents
What is ADR Technology?
ADR Technology is a patented impregnation system for modifying the surface of materials which, after drying, gives them very high dielectric loss in the low-frequency range (50/60 Hz). The layer operates passively, without power supply and without the use of biocides.
The impregnation is a water-based solution containing hydrated mineral components and stabilizing compounds that ensure an appropriate structure of the layer after drying.
Due to these properties, the ADR layer absorbs and dissipates the energy of the electric component of the field, leading to a local reduction of its intensity on the surface of the material as a result of charge relaxation (Maxwell–Wagner–Sillars effect). It acts as a passive absorptive shield of the electric field component without interfering with the operation of radio devices, Wi-Fi or mobile communication.
In laboratory studies on ADR- impregnated surfaces, a ≥2 log (≥99%) reduction of viruses and bacteria as well as inhibition of mould growth were observed.
The technology is not a biocidal product within the meaning of Regulation (EU) 528/2012.
The mechanism of action is physical in nature and does not rely on biocides, metal oxides or chemical reactions.
The technology is passive – it does not require power supply or additional installations, and the impregnated surface retains its functional properties.
It can be used in various products and functional layers, including:
– impregnations for building surfaces
– textiles and fibrous materials
– protective elements and filtration layers
– packaging materials used for protecting food and beverages (laboratory studies observed a reduction in freshness loss processes).
ADR Technology – an innovative solution in surface engineering, based on laboratory research
Effect confirmed by research
The effectiveness of ADR Technology has been confirmed by independent laboratories:
- ProChimia (2021–2025) – virus reduction exceeding 99%
- M&R LAB, report 21/2024 – reduction of bacteria (Staphylococcus aureus, Escherichia coli) >99%
- M&R LAB, report 37/2025 – no growth of moulds and yeasts was observed during the test period. After 21 days of incubation in high humidity conditions, all substrates impregnated with ADR SOL WALLS scored 0 on a scale of 0–4 (Aspergillus niger, Cladosporium cladosporoides, Rhodotorula mucilaginosa, Aureobasidium pullulans).
Key features of ADR technology
- Exclusively physical mechanism – no biocides and no grounding required
- Passive and permanent action – no power supply or special installation required
- Compatibility with materials – can be used on plastered and emulsion-painted brick walls, as well as on fabrics, non-woven materials and roofing membranes
- Dermatologically tested – non-irritating (J.S. Hamilton)
- International patent protection – Europe, USA, China, Brazil
How does ADR System technology work? – mechanism of action
Earlier shielding methods were based on conductive materials (sheet metal, mesh) that suppressed interference by reflection at the air-metal interface (impedance mismatch) and absorption of energy into the screen (skin effect). Near sources with a dominant electric field, conductors provided strong attenuation mainly through reflection, while for low-frequency magnetic fields, only materials with high magnetic permeability were effective. Grounding was not a prerequisite for shielding itself – charge redistribution also occurred in a ‘floating’ (ungrounded) screen – but grounding improved potential stability and practical safety.
ADR Technology has introduced a new approach: the absorption of the electrical component in a dielectric composite containing water. Water molecules trapped in the pores undergo polarisation and dielectric relaxation at both low and high frequencies. The finer the porous structure, the greater the surface area and the stronger the role of adsorbed ions and the first rigid water dipoles near the surface. As a result, water molecules react over a wide frequency range – from very low frequencies to the infrared band and the visible spectrum. Water in visible light practically does not absorb energy; strong absorption only occurs above the UV range and further into the spectrum.
This phenomenon leads to the cyclical accumulation and discharge of spatial charge (the Maxwell–Wagner–Sillars effect), which creates an environment unfavourable to microorganisms.
Join our partners
If you would like to include our solutions in your product range or use them in commercial projects, we are at your disposal. We are happy to collaborate with manufacturers to supply our ADR Technology.
Enquiries can be sent to:
info@adr.com.pl
Try our products
From ceramics to impregnants
Aluminosilicate hydrate and stabiliser solutions were introduced, creating a multi-phase material with a wide range of possibilities for adaptation to different matrices. The key was to select an impregnating agent that would work effectively with both mineral and textile substrates, while maintaining the shielding effects previously observed in ceramics – and even achieving better results.
Testing of ADR TEX electromagnetic field shield properties at room temperature
Application of ADR System products
- Walls and building materials (ADR SOL WALLS) – impregnation of plasters, plasterboards, concrete, and mineral paints; shielding of 50/60 Hz fields through absorption, reduction of microorganism settlement on the surface; no grounding required, substrate vapor permeability preserved.
- Textiles and bedding (ADR SOL FABRIC) – soaking fibers (cotton, blends, microfiber) to obtain an active, non-conductive layer limiting the multiplication of microorganisms on the fabric surface while maintaining user comfort.
- Masks and protective materials – application on nonwovens and filters; passive dielectric layer reduces surface colonization without interfering with the operation of nearby electronic devices.
- Packaging materials – cartons and foils – surface coatings for securing food, mineral water, and juices; microbiological barrier without biocides and metal oxides, intended for contact with both individual and bulk packaging.
Patent and international protection
Its effectiveness has been confirmed in independent studies, and the solution has won numerous gold medals at innovation exhibitions (Geneva, Brussels, Pittsburgh, Tokyo).
ADR technology does not use biocides — it utilises the energy of the fields around us. Thanks to its dielectric properties and interfacial polarisation, the coating absorbs some of this energy (depending on the frequency) and converts it into local electrical phenomena on the surface. Preliminary analyses of dielectric parameters and energy dissipation indicate that the available energy may generate local electrical effects at the material surface, without grounding and without chemicals.
Application:
The transparent impregnating sealer can be used before painting or on cleaned, previously painted walls. It is also suitable for paper wallpapers and other absorbent types, plasterboard, and roof membranes. Apply by any
method (e.g., brush, roller, or spray) until the surface stops absorbing. For stain-resistant or hydrophobic paints, apply the impregnating sealer before painting. For low-absorbency substrates, first use a primer, then apply the impregnating sealer, and finish with a topcoat.
50 Hz electric field distribution without the use of ADR®TEX
50 Hz electric field distribution using ADR®TEX under the mattress
50 Hz electric field distribution using ADR®TEX under the mattress and duvet