MILITARY
STANDARD

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A300 HEMP shielding-fleece | Shielding per Military Standard MIL-STD-188-125 | RF attenuation up to 123 dB | Highly effective against radio waves + electromagnetic pulses. 90 cm width.

A300 HEMP is our first shielding material designed to comply with the Military Standard MIL-STD-188-125, meeting this high military protection standard. This shielding fleece achieves an impressive attenuation of up to 123 dB thanks to its high-quality, double-laminated aluminum foil.

A300 HEMP was developed to protect critical infrastructure from powerful electromagnetic pulses (HEMP). It is suitable for industrial, military, and private use, both indoors and outdoors. The shielding fleece is highly breathable and highly water vapor permeable! Width: 90 cm.

Price per meter (100 x 90 cm)
Product quantity = number of linear meters

Delivery time: approx. 1-3 working days | Base price € 22,11/sqm
No right of withdrawal for custom-cut goods | Request a free test sample

Price per linear meter \| € 6,90 fee for cutting + packaging
Per meter (custom cut)	From 50 m (roll)	From 1.000 m (rolls)
€ 19,90	€ 18,00	€ 16,50

Length

Linear meter

50 meters roll

Clear

from: € 19,90

SKU: A300x Category: Shielding mesh Tags: 5G, A300 HEMP, Electrosmog, Groundable, MIL-STD-188-125, Military standard, Shielding

PREMIERE: Shielding to Military Standards!
With the new A300 HEMP shielding fleece, we meet the Military Standard MIL-STD-188-125 to protect critical infrastructure. Protection against powerful electromagnetic pulses (HEMP) and maximum EMF shielding with up to 123 dB. Width: 90 cm.

Discover the new A300 HEMP – a highly shielding fleece that provides optimal protection against electromagnetic fields (EMF) and electromagnetic pulses (HEMP). This innovative shielding fleece was designed to comply with the demanding Military Standard MIL-STD-188-125, making it ideal for security-critical applications in military facilities, critical infrastructure, data centers, or private shelters.

A300 HEMP is double-laminated with thick, micro-perforated aluminum foil. This ensures redundancy and material thickness to meet the Military Standard MIL-STD-188-125. This standard, aimed at protection against powerful electromagnetic pulses (High Altitude Electromagnetic Pulse = HEMP), safeguards critical infrastructure. It requires minimum shielding not only against high-frequency fields but also magnetic fields from 1 kHz. Produced in-house in Germany. Although developed with military applications in mind, the A300 HEMP shielding fleece makes this high military standard accessible and affordable for everyone.

Technical Highlight of the A300 HEMP Shielding Fleece

With micro-perforation featuring 400,000 tiny holes per square meter, the material is highly water vapor permeable. The micro-holes are so small that they do not affect the sensational 123 dB shielding attenuation. This high water vapor permeability is a breakthrough, as MIL-STD-188-125 typically requires two thick aluminum foils bonded together.

Why Choose A300 HEMP as a Shielding Material?

When maximum shielding is the goal – a technology that meets the Military Standard MIL-STD-188-125 while fulfilling the highest demands for EMF shielding – this is the material of choice! The A300 HEMP shielding fleece offers maximum safety and reliability, perfect for anyone looking to effectively protect their spaces from electromagnetic radiation or threats.

The conformity of this product with MIL-STD-188-125 has been tested by the accredited laboratory EMCC DR. RASEK accredited laboratory.

Download Report HEMP

Application and Capabilities of A300 HEMP
Maximum EMF Performance for Indoor + Outdoor Use

To meet the requirements of MIL-STD-188-125, a two-layer application is necessary. The test report from EMCC DR. RASEK refers to two-layer processing.

Our A300 HEMP provides professional installers with a solid foundation for a complete shielding concept per MIL-STD-188-125, where many details must be considered: overlaps, doors, windows, cables, ventilation, etc.

For shielding projects that do not need to account for low-frequency magnetic components, a single-layer application is fully sufficient, as redundancy is already provided with one layer.

Grounding of A300 HEMP

This product, with its electrically conductive surface, must be grounded via integration into the functional potential equalization (FPA). Suitable components can be found in the grounding product category.

Technical Specifications of the A300 HEMP Shielding Fleece

Shielding Attenuation: 123 dB
Width: 90 cm
Length: By the meter / 50 m roll
sd-Value: 0,024 m = highly water vapor permeable
Surface Weight: 300 g/m²
Thickness: 0,4 mm
Color: Silver / Silver
Tensile Strength: 4400 (crosswise) – 6800 (lengthwise) N/m
Corrosion Resistance: Equivalent to that of aluminum
Materials: Aluminum, cellulose (FSC, EUTR), polyester fibers (OEKO-TEX® certified), adhesive powder (OEKO-TEX® certified)
Field Type: HF (High-frequency electromagnetic fields), LF (Low-frequency alternating electric fields)

What is the Military Standard MIL-STD-188-125?

The Military Standard MIL-STD-188-125 is a U.S. military standard that ensures protection against electromagnetic pulses, also known as HEMP (High Altitude Electromagnetic Pulse). A HEMP can occur, for example, from a high-altitude nuclear explosion, creating an invisible energy wave that can destroy electronics like computers or power grids. This standard specifies how effectively materials or rooms must block these waves to keep critical facilities, such as military bases or emergency centers, operational.

For laypeople, this means: The Military Standard MIL-STD-188-125 is a quality guarantee for HEMP protection and other electromagnetic disturbances, such as those from cell phones or Wi-Fi. It tests not only protection against high-frequency waves but also magnetic fields starting at 1 kHz – a comprehensive safeguard for extreme scenarios. Products meeting this standard offer the highest level of security, whether for military or private use.

With materials like the A300 HEMP shielding fleece, you benefit from this technology. It protects your spaces from electromagnetic hazards – like an invisible shield for your home. Perfect for anyone relying on HEMP protection and dependability!

Further Information

Download MIL-STD-188-125 Standard

Processing the A300 HEMP Shielding Fleece

Surface Preparation: Absorbent or chalky surfaces must be pretreated with our GK5 Primer.

Adhesion: Cellulose glue does not adhere to the aluminum sides. We recommend our PSA Adhesive, which creates a self-adhesive surface (excellent adhesion for wet or dry installation).

Overlap: The strips must be glued with a 5 cm overlap. The edges of the strips should also be sealed with a shielding tape (with highly conductive adhesive); a tested tape will soon be available in our range.

Contact Materials: Due to the aluminum layer, all direct contact materials used during processing must have a neutral pH value between pH 4-9.

Shielding per MIL-STD-188-125

The conformity of this product with MIL-STD-188-125 has been verified by the accredited laboratory EMCC DR. RASEK. This product meets the minimum shielding requirements for magnetic fields from 10 kHz to 10 MHz and high-frequency fields from 10 MHz to 1 GHz. Additionally, high-frequency fields from 1 GHz to 40 GHz were tested according to ASTM D4935-10.

Grounding strap GSX, self-adhesive | grounding of shielding paint, shielding netting, shielding fleece, etc.

gsx10 erdungsband grounding strap yshield sferics 2000

Shielding accessories

Grounding strap GSX, self-adhesive | grounding of shielding paint, shielding netting, shielding fleece, etc.

Rated 4.00 out of 5

(1) from: € 19,90

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NEW

PSA pressure sensitive adhesive | for the aluminum-laminated side of our SAVEBUILD® shielding materials | immediate, very strong adhesion | designed for experienced professionals

Shielding accessories

PSA pressure sensitive adhesive | For the Aluminum-Laminated Side of Our SAVEBUILD® Shielding Materials | Immediate, Very Strong Adhesion | For Experienced Professionals

from: € 29,90

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A300 HEMP shielding fleece | aluminium laminated on both sides | macro/zoom 200x

A300 HEMP shielding fleece | aluminium laminated on both sides | macro/zoom 300x

TEST

Samples of shielding material | up to 3 material samples for free

Shielding stainless steel gauze V4A10 | RF screening attenuation against electrosmog up to 40 dB | For laying. 90 cm width. 5G ready!

Shielding accessories

€ 0,50

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Order quantity, revocation of the order and small quantity surcharge

If the netting has been cut in pieces of 1.0 running meter as requested by the customer, it is not possible to cancel or revoke the order. For this reason, it is possible to request a free sample of the shielding underlay membrane. By ordering pre-finished products, waiving the statutory right to return goods is accepted.

Small quantity surcharges for small quantities up to 3 running meters have been removed for reasons of transparency and fairness. The individual linear meter therefore always has the same price or price advantage for larger quantities. To refinance expenses and packaging, we charge a flat rate of € 6,90 per cut.

Test Report & Expert Opinion on Shielding Attenuation up to 40 GHz

Many years ago, YSHIELD invested in its own professional EMC laboratory. Here, not only are test reports generated, but each batch is also tested daily. In addition, YSHIELD has all products reviewed by an independent, renowned expert. Double-checked for double security.

Documentation (.pdf)

Technical details Laboratory report Report HEMP Expert report EMF Test Lab Bavaria

Weight	N/A
Dimensions	100 × 90 × 0,04 cm
Running meter	Quantity = desired length of shielding fleece
Length	Linear meter, 50 meters roll
Width	90 cm
Color	silver
Field type	HF (high-frequency electromagnetic field), LF (low-frequency electric alternating field)
Country of origin	Germany
Brand	YSHIELD®

Report HEMP Expert report EMF Test Lab Bavaria

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A300 HEMP shielding-fleece | Shielding per Military Standard MIL-STD-188-125 | RF attenuation up to 123 dB | Highly effective against radio waves + electromagnetic pulses. 90 cm width.

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A300 HEMP shielding-fleece | Shielding per Military Standard MIL-STD-188-125 | RF attenuation up to 123 dB | Highly effective against radio waves + electromagnetic pulses. 90 cm width.

PREMIERE: Shielding to Military Standards! With the new A300 HEMP shielding fleece, we meet the Military Standard MIL-STD-188-125 to protect critical infrastructure. Protection against powerful electromagnetic pulses (HEMP) and maximum EMF shielding with up to 123 dB. Width: 90 cm.

Technical Highlight of the A300 HEMP Shielding Fleece

Why Choose A300 HEMP as a Shielding Material?

Application and Capabilities of A300 HEMP Maximum EMF Performance for Indoor + Outdoor Use

Technical Specifications of the A300 HEMP Shielding Fleece

What is the Military Standard MIL-STD-188-125?

Further Information

Processing the A300 HEMP Shielding Fleece

Shielding per MIL-STD-188-125

Order quantity, revocation of the order and small quantity surcharge

Test Report & Expert Opinion on Shielding Attenuation up to 40 GHz

Documentation (.pdf)

Q & A

Reviews

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PREMIERE: Shielding to Military Standards!
With the new A300 HEMP shielding fleece, we meet the Military Standard MIL-STD-188-125 to protect critical infrastructure. Protection against powerful electromagnetic pulses (HEMP) and maximum EMF shielding with up to 123 dB. Width: 90 cm.

Application and Capabilities of A300 HEMP
Maximum EMF Performance for Indoor + Outdoor Use