Parker Hannifin, through its Parker Chomerics business, offers microwave absorber materials designed to reduce unwanted electromagnetic radiation in electronic equipment. Its CHO-MUTE lineup is positioned for engineers and manufacturers that need absorber materials for different frequency ranges, application environments, and packaging constraints.
For companies evaluating RF absorber suppliers in the U.S. market, Parker Chomerics stands out for offering multiple elastomer-based options within the same product family. Rather than presenting a single general-purpose material, the lineup includes CHO-MUTE 9005, 9009, and 9025, allowing buyers to compare materials based on operating frequency, intended application, and support needs such as sampling, quoting, and sales consultation.
Parker Chomerics offers multiple microwave absorber materials within its CHO-MUTE family, giving buyers a clearer way to evaluate options by frequency range and application fit. Instead of treating RF absorption as a one-material category, the lineup includes products positioned for different technical requirements, from higher-frequency absorption to lower-frequency performance and automotive radar-related use cases.
CHO-MUTE 9005 is a microwave absorber material designed for higher-frequency RF absorption. Parker describes it as a silicone elastomer with ferrous filler that helps reduce unwanted electromagnetic radiation, cross coupling, and cavity resonance.
It is available as sheet stock in various thicknesses and can also be die-cut for custom applications. With UL 94 V-0 and RoHS compliance, it is suitable for projects that need both high-frequency absorption and practical design flexibility.
CHO-MUTE 9009 is a microwave absorber material designed for higher-frequency applications. Parker describes it as a silicone elastomer with carbon filler that helps reduce unwanted electromagnetic radiation, cross coupling, and microwave cavity resonance.
It is positioned for demanding RF environments, including automotive radar-related applications in the 77–81 GHz range. The material is offered in various thicknesses and can be supplied with or without pressure-sensitive adhesive for flexible testing and custom fabrication.
CHO-MUTE 9025 is a microwave absorber material designed for lower-frequency RF absorption. Parker describes it as a silicone elastomer with ferrous filler that helps reduce unwanted electromagnetic radiation, cross coupling, and cavity resonance.
It is available in multiple standard thicknesses and can also be die-cut for custom applications. With UL 94 V-0 and RoHS compliance, it is suited to projects that need lower-frequency absorption along with practical integration into electronic assemblies.
CHO-MUTE 9005, 9009, and 9025 are not positioned as interchangeable absorber materials. Parker presents them for different frequency ranges and application contexts, which makes side-by-side comparison useful for buyers narrowing down a material for RF design, testing, or integration work.
| Material | Positioning | Material System | Performance Context | Form Factor | Compliance | Typical Fit |
|---|---|---|---|---|---|---|
| CHO-MUTE 9005 | Higher-frequency RF absorption | Silicone elastomer with ferrous filler | Up to 20 dB RF absorption | 6 standard thicknesses; die-cut available | UL 94 V-0, RoHS | High-frequency electronics and RF control needs |
| CHO-MUTE 9009 | Higher-frequency applications, including automotive radar-related use | Silicone elastomer with carbon filler | Up to 50 dB/cm at 77 GHz; 77-81 GHz context | Various thicknesses; with or without PSA | Not emphasized in the same way on the product page | ADAS-related, radar, telecom, industrial, and RF testing environments |
| CHO-MUTE 9025 | Lower-frequency RF absorption | Silicone elastomer with ferrous filler | Up to 20 dB RF absorption | 6 standard thicknesses; die-cut available | UL 94 V-0, RoHS | Lower-frequency electronics and compact device integration |
The RF absorber market is expanding rapidly, driven by the increasing need for EMI (Electromagnetic Interference) reduction in 5G/6G, autonomous driving, and defense applications.
This site provides comparative information on products and manufacturers by application to help you identify the ideal solutions for R&D, anechoic chambers, and high-frequency testing.
Parker Chomerics positions its CHO-MUTE absorber materials for a range of RF control needs rather than a single niche use. Across the lineup, the materials are presented for applications where unwanted electromagnetic radiation, reflections, and cavity-related interference need to be reduced in compact or performance-sensitive electronic systems.
CHO-MUTE 9009 is the clearest fit for automotive radar-related applications. Parker connects the material to the 77-81 GHz range used in newer ADAS and radar systems, making it relevant for designs that need high-frequency absorption in tightly packaged electronic environments.
Telecommunications is a recurring use case across the CHO-MUTE family. Parker lists telecommunications equipment and telecom infrastructure among the typical applications, which makes the lineup relevant for RF designs that need absorber materials to help manage interference and signal integrity.
Parker also positions the materials for RF testing, industrial applications, and military or defense-related electronics. This broadens the lineup beyond commercial product integration and makes it easier to present CHO-MUTE materials as options for lab, field, and ruggedized electronic environments.
For smaller electronic assemblies, Parker highlights use cases such as handheld electronics, GPS units, ruggedized computers, and night vision equipment. These examples help show where lower- or higher-frequency absorber materials may be selected not only for RF performance, but also for integration into constrained designs.
Parker Chomerics supports RF absorber evaluation not only through product information, but also through practical commercial and engineering touchpoints. Buyers can request quotes, ask for samples, and connect with sales or technical contacts when comparing absorber materials for a specific project.
This support structure is useful for teams that need more than a catalog-level review. Whether the priority is early material testing, application fit, or sourcing coordination, Parker provides multiple ways to move from product research to supplier engagement.
Parker Chomerics is a practical supplier to consider when RF absorber sourcing requires more than a single general-purpose material. Within the CHO-MUTE family, Parker presents multiple options for different frequency ranges and application contexts, giving buyers a clearer path to compare materials based on technical fit.
The company also supports sourcing decisions with quote requests, sample access, and expert contact options. For teams evaluating absorber materials for radar, telecommunications, RF testing, or electronics integration, this combination of product range and supplier support can make Parker easier to assess at an early stage.
Parker Hannifin is a long-established engineering company whose broader business extends well beyond RF absorber materials. For buyers reviewing Parker Chomerics as a supplier, this matters because the microwave absorber lineup sits within a larger global organization with established industrial and aerospace reach.
| Company | Parker Hannifin Corporation |
|---|---|
| Founded | 1917 |
| Corporate Headquarters | Mayfield Heights, Ohio, United States |
| Chomerics World Headquarters | Woburn, Massachusetts, United States |
| Frequency Range |
|---|
| 3GHz-320GHz |
| Material |
| Urethane Foam |
| Key Features |
| Up to 50 dB of absorption |
At just 550g per panel—approximately half the weight of competing products (*1)—this polyurethane foam absorber covers a wide frequency range from 3 to 320 GHz.
Delivers 50 dB absorption, outperforming conventional heavy ferrites.
Velcro-backed for rapid mounting, ideal for temporary setups and cost-effective maintenance.
| Frequency Range |
|---|
| 20MHz-3GHz |
| Material |
| Elastomer |
| Key Features |
| Permeability (at 1 MHz): 150 |
Heat-resistant elastomer: Designed for direct SMT processing and high-temperature durability.
Ultra-thin (from 0.1 mm) for high-density integration with robust EMI suppression.
It significantly reduces assembly workload and enables EMI countermeasures without altering the existing manufacturing process.
| Frequency Range |
|---|
| 1-35 GHz |
| Material |
| Elastomer |
| Key Features |
| Reflection Performance: –20 dB |
Frequency-tuned for specific radar absorption, offering superior stealth performance over standard RF sheets (*2).
Millimeter-thin design delivers –20 dB reflection, ensuring high absorption while preserving aerodynamic integrity.
Excellent conformance to complex geometries with thermal stability from –60°C to 150°C—ideal for aerospace platforms.