Part Finishing System

Birchwood Casey's BC40 Tru Temp finishing system uses a seven-tank process line and a two-step chemistry. The system produces a true black magnetite finish of 0. 000020" thickness, satin black in appearance and equal to that of conventional hot black oxide.

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Birchwood Casey's BC40 Tru Temp finishing system uses a seven-tank process line and a two-step chemistry. The system produces a true black magnetite finish of 0.000020" thickness, satin black in appearance and equal to that of conventional hot black oxide. The Tru Temp process produces high-quality black finishes on iron and steel components in 25 minutes, the company says.

The system operates at 200°F compared to dangerous hot oxides that normally operate at 290°F. The severe splattering and boil over hazards are not present.

The Tru Temp process contains no EPA-regulated chemicals. Therefore, there is no need for waste treatment equipment. In most sewer distritcts, the rinse waters are considered to be sewerable as non-hazardous effluent. As a result, the initial capital investment is usually half that of other blackening process systems, according to the company.