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"After selling another very successful business venture in the 1970’s, noted materials scientist Dr. William R. Cuming founded Cuming Corporation in 1980, with a mission to provide innovative materials, including syntactic foam flotation and insulation equipment for the offshore oil and gas industries, and microwave absorber products for the electronics, telecommunications, defense and aerospace industries. From its small start, the company experienced continual growth over the next three decades.

Cuming Microwave was spun off as a separate company in 2008, in order to better focus on the rapid growth of our product lines and custom engineering capabilities. Cuming Microwave is located in three plants with 118,000 square feet in Avon, Massachusetts, just south of Boston. These include a common headquarters building, machine shop, R&D equipment, as well as constant informal contacts between our technical staffs.

In 2004, with the continued growth of our RF anechoic chamber business, Cuming Microwave purchased Lehman Chambers, a custom construction company and one of our best customers. Cuming-Lehman Chambers is a wholly owned subsidiary, and can provide full turn-key anechoic chamber facilities. Today, we are a world leader in the installation of anechoic chambers for antenna measurements, RCS measurements, passive intermodulation, and EMC compliance.

Our RF materials group has a catalog of standard products, including magnetic and carbon RF absorbing materials, and low loss dielectric products. However, our strength derives from the technical knowledge of our people – we thrive on developing custom solutions to the most challenging materials applications. We engage in extensive research and development activities and testing to provide customers with cost-effective, creative materials solutions. We offer a full-service approach, from engineering to manufacturing, installation, and maintenance of our products."

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C-RAM FLX is a series of flexible microwave absorber sheet material which absorbs approximately 99% of incident RF energy at design frequencies in the range of 1 to 35 GHz. The material is weatherproof and will withstand a wide temperature range. It will conform to complex shapes and is readily bonded to metal surfaces. C-RAM FLX is intended for attachment to aircraft structures, nose cones, ship masts, instrument housings, and other surfaces for the reduction of specular radar reflections.

C-RAM FLX

C-STOCK RH is a series of rigid Polymethacrylimide foams which will withstand temperatures to 380ºF. C-STOCK RH has a high compression and shear strength and a very low dielectric constant and low loss factor. It is easily machined to close tolerances. C-STOCK RH is useful as a low density, high temperature structural member, as a thermal barrier material, and as an RF window material. C-STOCK RH may be thermo-formed at temperatures of 325ºF to 360ºF, and therefore finds significant uses as radome core material.

C-STOCK

C-RAM FLX Neoprene FLX-1.0 has excellent resistance to outdoor exposure, moderate resistance to oil and gas.

C-RAM FLX Neoprene FLX-1.0

C-RAM FLX Urethane FLX-1.0 has excellent abrasion resistance and tear, good weather resistance, excellent tensile strength and elongation.

C-RAM FLX Urethane FLX-1.0

C-Stock RH-5 is a series of rigid Polymethacrylimide foams which will withstand temperatures to 380ºF. C-STOCK RH has a high compression and shear strength and a very low dielectric constant and low loss factor. It is easily machined to close tolerances.

C-STOCK RH-5

C-RAM FLX Silicone FLX-1.0 has excellent heat resistance, good flexibility at low temperature, excellent ozone and sunlight.

C-RAM FLX Silicone FLX-1.0

C-Stock RH-7 a series of rigid Polymethacrylimide foams which will withstand temperatures to 380ºF. C-STOCK RH has a high compression and shear strength and a very low dielectric constant and low loss factor. It is easily machined to close tolerances.

C-STOCK RH-7

C-Stock RH-10 is a series of rigid Polymethacrylimide foams which will withstand temperatures to 380ºF. C-STOCK RH has a high compression and shear strength and a very low dielectric constant and low loss factor. It is easily machined to close tolerances.

C-STOCK RH-10

Cuming Microwave

"After selling another very successful business venture in the 1970’s, noted materials scientist Dr. William R. Cuming founded Cuming Corporation in 1980, with a mission to provide innovative material

Cuming Microwave - Syntactic foam - Microwave absorber - Knowde

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C-STOCK RH Technical Data Sheet

C-STOCK RH Technical Data Sheet - Cuming Microwave

C-Stock RH-10 is a series of rigid Polymethacrylimide foams which will withstand temperatures to 380ºF. C-STOCK RH has a high compression and shear strength and a very low dielectric constant and low 

C-STOCK RH-10 - Cuming Microwave - PI - Foam - Knowde

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	Value	Units	Test Method / Conditions
Density	7.0	lbs/ft3	D1622
Dielectric Constant (2-20 GHz)	1.14	-	-
Dissipation Factor (5 GHz)	0.0009	-	-
Compressive Strength	427.0	psi	D1621
Shear Strength	341.0	psi	C273
Thermal Conductivity	0.3	Btu-in/ft2 -hr. -ºF	-

C-STOCK RH-10

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