RF Flat Sheet Absorber-EPP

DMC premium quality high performance Expanded Polypropylene RF Flat Sheet Absorbers are made of High density carbon impregnated polypropylene material. DMC-PP-FLT series microwave flat absorbers are used on Doors, Anechoic chamber corners, RF shielded cabinets.

  • Frequency range 1GHz to 40GHz
  • Typical reflectivity as high as -39dB
  • Power handling capacity 4.8kW/m2, 1353 V/m CW Radiated field strength
  • Fire Retardant per NRL-8093 1,2,3, UL 94:2013, HBF and DIN 4102 and Class B2
  • Continuous working temperature up-to 120°C
  • Clean Room suitable per ISO 14644 Class5
  • Water Resistant per GB/T 4208-2017
  • RoHS and REACH Compliant
  • Zero Carbon dust

Part number reference:

DMC-PP-FLT-40, DMC-PP-FLT-100

TYPICAL REFLECTIVITY AT NORMAL INCIDENCE OVER FREQUENCY RANGE IN dB

Model Number Thickness 1 GHz 3 GHz 6 GHz 10 GHz 18 GHz 40 GHz
DMC-PP-FLT-40 40 mm 15 24 26 29 33 34
DMC-PP-FLT-100 100 mm 21 27 28 33 37 39

Frequently Asked Questions

It is an RF absorbing material made from expanded polypropylene (EPP) designed to reduce electromagnetic reflections in RF testing environments such as anechoic chambers.
The absorber typically operates in the 1 GHz to 40 GHz frequency range, covering many RF and microwave testing applications.

 

It can achieve reflectivity levels up to approximately −39 dB, depending on absorber thickness and frequency.

 

They are commonly installed on anechoic chamber doors, chamber corners, RF shielded cabinets, and antenna testing setups.
The absorber is made from high-density carbon-impregnated expanded polypropylene (EPP) material.
The absorber supports power handling up to about 4.8 kW/m² with CW field strength around 1353 V/m.
Yes. It meets several fire safety standards such as NRL-8093, UL-94, and DIN 4102 Class B2.
The absorber can operate continuously at temperatures up to 120 °C in RF testing environments.

 

Yes. The absorber is ISO 14644 Class 5 cleanroom compatible and produces zero carbon dust.

 

It helps reduce RF reflections, improve antenna measurement accuracy, minimize interference, and optimize electromagnetic testing environments.

 

What Our Clients Say

High-Temperature RF Absorber for Demanding Testing

September 22, 2026

We’re very pleased with this absorber for demanding RF testing environments. The ability to operate continuously at temperatures up to 120°C is particularly useful for applications where heat can be a concern. The overall performance has been reliable and well suited to our testing requirements.

Avatar for Erica Sullivan
Erica Sullivan

Practical Flat-Sheet RF Absorber

September 22, 2026

We’re very pleased with the practicality of this flat-sheet absorber. Its format works especially well in areas where traditional pyramidal absorbers may not be suitable. The design gives us more flexibility when planning our chamber setup and has been a useful addition to our testing environment.

Avatar for Justin Thornton
Justin Thornton

Compact and Practical RF Absorption Solution

September 17, 2026

We’re very pleased with this RF absorption solution. Its compact design makes it practical for different testing setups, while helping minimize unwanted electromagnetic reflections. It’s a simple and effective addition to a controlled RF environment, with a design that fits well where space is limited. Overall, a useful and reliable solution for professional testing needs.

Avatar for Jennifer Wallace
Jennifer Wallace

Clean and Practical Absorber for Controlled Environments

September 17, 2026

We’re impressed with the thoughtful design of this product. The EPP material and zero carbon dust construction make it especially suitable for controlled testing environments where cleanliness is important. The overall build quality feels reliable, and the design appears well suited for professional RF and measurement applications. A practical solution for modern testing facilities.

Avatar for Steven Carter
Steven Carter

Wideband RF Absorber for Microwave and Millimeter-Wave Applications

September 11, 2026

The wide frequency range is a major advantage. We can use the same absorber for several microwave and millimeter-wave applications.

Avatar for Kimberly Sutton
Kimberly Sutton