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Hot seal tanks operate at 180° F or higher, your dichromate heaters have to be tough. We exclusively design fully welded junction boxes, not plastic. L-shaped or bottom immersion heaters are best because they will get the heat to the bottom of the sealing tank.
Widely used in aerospace parts, the hot seal plating is also known as duplex sealing process because nickel acetate or boiling DI water is used with potassium dichromate in a two-step sealing process. Only high performance immersion heaters are used.
If your metal processing tank uses over-the-side heaters then the cold zone, or open air exposed section, should be as long as possible. Contact our heating experts for questions or custom orders.
Liquid level control is necessary in boiling hot seal tanks. Solution controllers and sensors are a must.
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