29220102

**Eccosorb® GDS FR** 

High-Loss, Thin, Elastomeric Microwave Absorber 

## **HIGH-LOSS ELASTOMERIC ABSORBER** 

Eccosorb GDS FR is a thin,UL rated  ,flexible, high-loss, magnetically loaded, electrically nonconductive silicone rubber sheet. It is designed for the frequency range from 18 GHz and above. The material is impervious to moisture and can be subjected to high altitudes, with no adverse effects. Being a silicone based absorber, it has low outgassing properties for space applications. 

It s showing same performances as standard GDS with the additional features of being ULV0 rated. 

## **FEATURES AND BENEFITS** 

- High power performance 

- Low outgassing properties 

- UL V0 

## **MARKETS** 

- Commercial Telecom 

- Security and Defense 

- Automotive and Industrial Electronics 

## **SPECIFICATIONS** 

|TYPICAL PROPERTIES|ECCOSORB GDS FR|
|---|---|
|**Frequency Range (GHz)**|≥ 18 GHz|
|**Max Service Temperature °C(°F)**|170(338)|
|**Hardness(Shore A)**|>70|
|**Volume Resistivity (ohm-cm)**|> 1011|
|**Weight kg/m²(lbs/ft²)**|2.9(0.6)|
|**Flammability rating**|UL94 V0|
|**Outgassing**||
|**(%TML) (%CVCM)* **|0.2/0.08|



_Data for design engineer guidance only. Observed performance varies in application. Engineers are reminded to test the material in application. *_ Outgassing data per ASTM E595-07; criteria for acceptability is 1.00% TML and 0.10% CVCM. 

## **APPLICATIONS** 

- When placed within a cavity Eccosorb GDS FR has proven to be very effective at dampening resonances due to the absorbers high permittivity and permeability. 

- When bonded to a metal surface Eccosorb GDS FR will significantly reduce the reflectivity of metal objects or structures due to the flow of microwave currents on that surface. 

- It can be applied to antenna elements, microwave dishes, the inner or outer surfaces of waveguides for isolation, attenuation or modification of radiating patterns. 

- When applied to side or even rear surfaces of certain objects Eccosorb GDS FR will cause a significant reduction in “head on” reflectivity or backscattering. 

- Although not intended as a specular absorber, it will reduce metal plate reflectivity by a few dB. 

## **AVAILABILITY** 

- Standard sheets are 305 x 305 in thicknesses 0.5/0.76/1mm 

- Eccosorb GDS FR can be supplied with a Pressure Sensitive Adhesive. 

Americas: +1.866.928.8181 Europe: +49.(0)8031.2460.0 Asia: +86.755.2714.1166 

- On special order, other sizes, thicknesses and customer specified configurations can be supplied. 

**www.lairdtech.com** 

**Eccosorb® GDS** 

## **INSTRUCTIONS FOR USE** 

- Eccosorb GDS  FR is designed to function directly in front of a metallic surface. 

- The material can be bonded by use of an RTV silicone based adhesive in conjunction with a suitable primer. 

- To obtain a strong bond, the metallic surface should first be thoroughly cleaned with a degreasing solvent,  apply a thin coat of primer to the dried surface and apply a RTV silicone adhesive. 

- Eccosorb GDS FR can be readily cut with a sharp knife and template. It is a very flexible material and conforms to contoured surfaces. 

## **Typical Attenuation Eccosorb GDS FR** 

RFP-DS-GDS FR 12092020 

Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and application of Laird Technologies materials rests with the end user. Laird Technologies makes no warranties as to the fitness, merchantability, suitability or non- infringement of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies’ Terms and Conditions of sale in effect from time to time, a copy of which will be furnished upon request. © Copyright 2015 Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trademarks or registered trademarks of Laird Technologies, Inc. or an affiliate company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird Technologies or any third party intellectual property rights.