Oven Brazed & Annealed
This process produces a thin oxide coating on the fins & sheath. The copper braze material provides a further benefit by coating portions of the sheath. Suitable for most clean air applications containing low to moderate amounts of organic VOC’s and moisture.
High Heat Aluminum painted
High heat Aluminum paint available for steel finned units is suitable for use up to 700⁰F. It has good moisture resistance and provides the heater with a rust protective coating for ambient air applications containing organic or non-corrosive VOC’s. Recommended for use in most air duct applications.
High heat flat black painted surface
This is a high temperature, high emissivity, flat black coating which protects steel finned heater surfaces from oxidation while acting as a blackbody emitter. Usable up to 1000⁰F, it provides a radiant surface for free convection & low velocity convective applications.
Nickel plated steel finish
Nickel plated finish is available to provide the highest possible corrosion protection on steel finned heaters. Usable up to 500⁰F for salt water marine applications, air containing high concentrations of organic VOC’s, flue gas residues, ammonia, and many other chemical vapors. Please contact Tempco with your specific application requirements.
Bright Annealing
Bright annealed steel or stainless steel finned heaters produce a smooth bright finish. For applications requiring a clean un-oxidized surface with no rust or other contamination. Stainless finned heaters can be used in applications at higher temperatures and where moderate to high concentrations of organic or non-corrosive vapors are present.