The SIL54 shielding paint is a special shielding paint with a minimalist formulation: free from preservatives, solvents and plasticisers. It provides up to 75 dB shielding attenuation at 40 GHz (a shielding effectiveness of over 99,999999 %).
SIL54 is another special shielding paint from YSHIELD, developed for application indoors. Besides the excellent shielding performance against EMF, the focus during development was above all on a minimalist formulation without preservatives. Ingredients and emissions have been tested by TÜV SÜD according to test standard TM-09.
The SIL54 shielding paint is coarsely pigmented at 80 µm and forms a rather softer film. As it is a dispersion silicate paint, its field of application is clearly indoors on walls, ceilings and floors. The low acrylic content of the shielding paint ensures that adhesion on problematic substrates is almost always guaranteed. SIL54 is most easily applied with a standard paint roller.
If avoiding preservatives is your priority, SIL54 is the right shielding paint (even if this means accepting some limitations in workability and hardness).
YSHIELD has all shielding paints monitored by TÜV SÜD. The test standard applied is called TM-09. This standard covers testing for health-relevant ingredients and emissions, product monitoring, process monitoring and control of raw materials.
SIL54 is certified according to TM-09. The certificate confirms the properties preservative-free, low-emission (VOC), plasticiser-free (SVOC) and solvent-free. For the certificate, see “Documentation”.
Special Shielding Paint SIL54
This shielding paint shields high-frequency electromagnetic fields (HF) and was tested from 600 MHz to 40 GHz according to the standard IEEE Std 299-2006.
- 53 dB shielding attenuation at 1 GHz applied in two layers | at 4 m² per liter
- 44 dB shielding attenuation at 1 GHz applied in two layers | at 8 m² per liter
- 75 dB shielding attenuation at 40 GHz applied in two layers | at 4 m² per liter
- coarse pigmentation with 80 µm | forms a rather soft film (smearing)
- sufficient adhesion is provided even on problematic substrates
Shielding Paint SIL54 | Coverage
In general, the coverage of shielding paints is significantly dependent on the substrate. The more the substrate “sucks” i.e. absorbs paint, the more shielding paint is needed. Therefore, we recommend performing tests on small areas to see how quickly the paint “soaks in”. We fundamentally recommend using our primer as this prevents excessive consumption of the SIL54 shielding paint. The “average” coverage is thus based on a non-“absorbent” substrate.
It is absolutely necessary to stir the SIL54 shielding paint thoroughly before application. Due to storage and transport, the heavier ingredients of the shielding paint have settled, and this must be corrected. With our specially developed stirring rod, re-mixing and stirring the shielding paint is easily and effectively possible. Simply clamp it into a standard electric drill and mix or blend it for about 5 minutes per container. No solid residue of the fixed ingredients should remain at the bottom of the container – this would result in lower shielding performance because it would not be applied to the wall.
Technical Shielding Attenuation Values from the EMF Laboratory
- With a coverage of 4 m² / liter
At 1 GHz: Single layer 44 dB | Double layer 53 dB - With a coverage of 8 m² / liter
At 1 GHz: Single layer 35 dB | Double layer 44 dB
Absolutely Necessary Grounding of SIL54 Shielding Paint
According to valid DIN/VDE regulations, all electrically conductive surfaces must be grounded by a qualified electrician. This can be done via the grounding conductor of the house electrical system (ground contact in the socket) or via the grounded heating pipe of the wall radiator. It is also necessary that a residual current device (RCD) circuit breaker is installed in the fuse box. It must fundamentally be noted that the circuit must be interrupted before painting work—an electric shock with 230 volts at 16 amperes can be fatal! When painting the wall, a distance of one centimeter from the electrified flush-mounted box should be maintained.
Electric alternating fields can be grounded. This is in contrast to wireless radiation (high frequency) which is based on reflection and therefore cannot be grounded. Shielding from wireless radiation is therefore also based on reflection, which prevents the penetration of electromagnetic radiation into the room.
The SIL54 shielding paint protects against both types of electrosmog emissions. This means against electric alternating fields through grounding and high-frequency electromagnetic fields through reflection.
Shielding Paint SIL54 | Technical Details
- Shielding Attenuation
Single-layer at 1 GHz, SIL54 shields up to 44 dB, and double-layer shields up to 53 dB. All specified shielding attenuation values apply at 1 GHz. The measurement of the attenuation of electromagnetic waves from 600 MHz to 40 GHz was carried out in close adherence to the standards IEEE Std 299™-2006 or ASTM D4935-10. - Top Coat
To protect the tough-elastic and black surfaces against mechanical stress and moisture, we recommend a two-layer top coat. Since there is a wide variety of paints worldwide, we can never guarantee a specific combination. In addition, many purely mineral coatings and eco-paints adhere poorly to the graphite surface of our shielding paints. We always recommend a test coat on a sample area. - Grounding
Must be grounded! For indoor use, we recommend our self-adhesive grounding tape plus grounding plate GW (GB) plus grounding plug GP; for outdoor use, the fiber additive AF3 plus grounding plate GE.
FAQ | Frequently Asked Questions
SIL54 contains no preservatives, plasticisers or solvents whatsoever. Compliance with test standard TM-09 (health-relevant ingredients and emissions) is certified by TÜV SÜD. It is therefore low in emissions (VOC) and an option for people who want to avoid preservatives such as isothiazolinones – common triggers of contact allergies.
Yes. SIL54 has been tested in a frequency range from 600 MHz to 40 GHz. This means it effectively shields all current 5G frequency bands (FR1 and FR2). At 40 GHz it even achieves a shielding attenuation of up to 75 dB (with two coats).
No. SIL54 is a dispersion silicate paint developed specifically for indoor use (walls, ceilings, floors). It forms a softer film that would not withstand outdoor weather conditions.
Yes, this is mandatory. As the paint is electrically conductive, DIN/VDE regulations require earthing by a qualified electrician. This protects against electric shock and additionally shields low-frequency electric alternating fields (LF) from the mains supply.
The substrate should be dry, clean and sound. Thanks to its low acrylic content, SIL54 also adheres well to more problematic substrates. On highly absorbent substrates, however, we strongly recommend a primer so as not to increase paint consumption unnecessarily.
The most important thing is stirring! As SIL54 contains no preservatives and has heavier ingredients, these settle. Before use, you must thoroughly mix the paint with a stirring rod and a drill for approx. 5 minutes so that full shielding performance is achieved.
We generally recommend two coats.
With one coat you achieve approx. 44 dB shielding at 1 GHz.
With two coats you increase performance to up to 53 dB at 1 GHz (and up to 75 dB at higher 5G frequencies). A second coat also covers imperfections better.
| Ready for 5G | Expert report on shielding attenuation up to 40 GHz | TÜV SÜD certification | No graphene & nanoplatelets |
| Some companies offer “special” 5G shielding products. This product shields 5G frequencies – even without extra advertising for it! In all shielding diagrams you will find two grey bars showing the 5G frequency spectra FR1 (600 MHz – 6 GHz) and FR2 (24 GHz – 40 GHz). | Many years ago, YSHIELD invested in its own professional EMC laboratory. Not only are test reports produced there, but every batch is tested daily as well. In addition, YSHIELD has all products verified by an independent, renowned expert. Tested twice for double the assurance. | YSHIELD has its shielding paints monitored by TÜV SÜD. The entire manufacturing process including quality assurance, emission behaviour and the sparing use of preservatives are subject to this control. | YSHIELD uses low-emission carbon black and untreated natural graphite. The use of graphene or even newer nanoplatelets is deliberately avoided – nanomaterials with a completely unknown hazard potential. |


















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