The manufacturing process begins with a metallic foil that is laminated to a silicone rubber sheet. The sheet is then printed with the desired circuit pattern then chemically etched, leaving the printed pattern. Another layer of silicone rubber is then vulcanized over the top of the circuit.
Wire Wound Elements
One to five strands of resistance wire is wound together then formed in the desired circuit pattern on top of a layer of silicone rubber. Another layer of silicone rubber is placed over the element to seal the heater. |
