Silicone Rubber heaters can contain either an etched foil element or a wire wound element. Silicone Rubber heaters can be bonded to a heatsink with pressure sensitive adhesive (PSA), RTV or factory vulcanized to a heatsink. We recommend vulcanization as it requires no adhesive and the bond has the temperature capability of thesilicone rubber itself. It is inexpensive and provides a highly reliable way of mounting a flexible heater.