Case Study · Iron & Steel
Molten Zinc Tool High Emissivity Coating: Bath Contamination Eliminated at an Ohio Zinc Refinery
| Industry | Iron & Steel (metals) |
|---|---|
| Asset | Steel skimmers, sampling tools, dross-removal implements |
| Customer or location | Zinc manufacturing facility, Ohio, USA |
| Products used | Emisshield M-1, sintered at 815°C |
| Headline metric | Extended tool life |
| Secondary metric | Contamination eliminated |
| Also measured | Re-refining avoided |
Steel skimmers, sampling tools, and dross-removal implements at an Ohio zinc facility were rapidly disintegrating in molten zinc, contaminating the bath and forcing expensive re-refining. The tools were lightly grit-blasted, coated on their outside surfaces with Emisshield M-1, and sintered at 815°C. Coated tools resist dissolution, the bath no longer needs refiring and reprocessing, and operators work more safely.
01
What was the challenge?
Prolong tool life, prevent contamination, and remove the need to remelt zinc.
02
What was applied?
Tools shipped to the Emisshield laboratory, grit-blasted, coated with M-1, sintered at 815°C, and returned for use in molten zinc baths.
03
What were the results?
| Metric | Uncoated | Coated |
|---|---|---|
| Tool life | Rapid disintegration | Dramatically extended |
| Bath contamination | Ongoing | Eliminated |
| Re-refining | Required | No longer needed |
| Operator safety and efficiency | Baseline | Improved |
04
Why did it work?
The sintered ceramic surface separates the steel from the molten zinc while its emissivity keeps tool temperature uniform. See Products, sintered systems.
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