Rogers Corporation Introduces New Water-Resistant Flexible Heater Substrate

Release Date: 03/21/2019

Chandler, Arizona, March 21, 2019 – Rogers Corporation (NYSE:ROG) is pleased to introduce ARLON® water-resistant substrate for flexible (“flex”) heater applications. Available for use in a vast range of industries, the new substrate is designed to improve performance and reliability of both etched-foil and wire-wound flex heaters, particularly those operating in high moisture or underwater environments.

Instead of the fiberglass fabric typically used in flex-heater substrates, Rogers’ new ARLON® 34C36 water-resistant substrate combines high performance silicone with layers of Rogers’ own DeWAL® Polytetrafluoroethylene (PTFE) film. As PTFE is hydrophobic and will not wick water, the new substrate remains robust and durable in wet environments. Fiberglass fabric, on the other hand, is hydrophilic and wicks water, allowing moisture to seep into the heater through exposed fibers. Flexible heaters made of the new ARLON substrate will function better in wet environments that could, otherwise, be at risk of inefficient heating or mechanical failure.

ARLON 34C36 waterproof flex-heater substrate combines the PTFE film with uncured silicone on one side, and cured silicone on the other. The substrate is available in both 20 mil (.508 mm) and 30 mil (.762 mm) thicknesses. As with all ARLON flex-heater substrates, the new substrate is Underwriters Laboratory (UL) recognized for relative thermal index (RTI) ratings up to 220ºC (428°F), flammability ratings for horizontal burn (UL94 HB), and the highest resistance to vertical burn (UL94 V-0) for electrical insulation of flexible heaters.

Rogers offers a full line of ARLON silicone rubber / fiberglass fabric flex-heater substrates. These composites operate reliably and offer long service life under most environmental conditions. ARLON offerings are also available with pre-bonded resistive foils, such as Alloy 600 and stainless steel, to eliminate the initial bonding step from the flexible heater manufacturers’ process. Utilizing pre-bonded resistive foils also enables the flexible heater manufacturer to process the material in continuous roll-to-roll rather than piece-by-piece to realize reduced costs.

“We’re proud to introduce a waterproof option to our portfolio of high-performance flex-heater substrates,” states Tim Wilson, Rogers’ Market Segment Manager for ARLON products. “By combining the hydrophobic properties of PTFE with the robust properties of ARLON® silicone rubber, the new substrates deliver a new standard in reliability and moisture resistance.”

For more information on ARLON substrates, visit For more information on the Rogers family of elastomeric material solutions, visit

About Rogers Corporation

Rogers Corporation (NYSE:ROG) is a global leader in engineered materials to power, protect, and connect our world. With more than 180 years of materials science experience, Rogers delivers high-performance solutions that enable clean energy, internet connectivity, and safety and protection applications, as well as other technologies where reliability is critical. Rogers delivers Power Electronics Solutions for energy-efficient motor drives, vehicle electrification and alternative energy; Elastomeric Material Solutions for sealing, vibration management and impact protection in mobile devices, transportation interiors, industrial equipment and performance apparel; and Advanced Connectivity Solutions for wireless infrastructure, automotive safety and radar systems. Headquartered in Arizona (USA), Rogers operates manufacturing facilities in the United States, China, Germany, Belgium, Hungary, and South Korea, with joint ventures and sales offices worldwide. For more information, visit

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