News
Zirconia Coating Type ZC-2: The Industrial “Liquid Shield” for Extreme Heat
In high-temperature industrial environments, protecting substrates from molten metals, slag, and chemical erosion is a constant challenge. When standard coatings fail, ZIRCAR Ceramics’ Zirconia Coating Type ZC-2 emerges as a premier solution for heavy-duty thermal protection.
This specialized water-based suspension is designed to transform surfaces—whether ceramic, graphite, or metal—into high-purity Zirconium Oxide ($ZrO_2$) shields capable of withstanding extreme conditions.
What is ZC-2 Zirconia Coating?
Zirconia (Zirconium Dioxide) is often called “ceramic steel” due to its incredible toughness and thermal stability. ZC-2 is a concentrated, liquid form of this material that dries into a hard, smooth, cream-colored surface.
Key Technical Specifications
| Property | Specification |
| Composition | 95–99% $ZrO_2$, 1–5% $Al_2O_3$ |
| Max Service Temperature | $1900^\circ C$ ($3500^\circ F$) |
| Coverage | 250 to 500 $ft^2$ per gallon |
| Shelf Life | One Year or more |
| Item Number | A39-01 (1 Gallon container) |
Why Choose ZC-2 for Your Application?
The primary advantage of ZC-2 is its chemical inertness. In industrial settings, many coatings react with molten metals, leading to contamination or coating failure. Zirconia, however, remains stable even in contact with reactive compounds.
- Molten Metal Resistance: It acts as a non-wetting wash for crucibles, ladles, and spouts, preventing metal and slag from sticking to the equipment.
- Thermal Barrier: With a melting point near $2700^\circ C$ and a max service temperature of $1900^\circ C$, it protects underlying substrates from intense heat that would otherwise cause oxidation or melting.
- Sintering Utility: It serves as a non-stick coating for saggers and setters in powder metal and electronic ceramic sintering, ensuring clean separation of parts.
Application and Handling
To achieve the best results, proper surface preparation is essential. The substrate must be clean, dry, and free of loose particles or oils.
Pro Tip: ZC-2 is a suspension. Over time, solids may settle. Always stir the contents gently but thoroughly with a spatula before application. If the mixture has thickened or contains dried flakes, passing it through a fine screen or filter will restore a smooth consistency.
Once applied, the coating should be allowed to air dry. For multiple layers, ensure each layer is fully dried before applying the next to prevent cracking or delamination.
Pricing and Availability
Zircar Ceramics sells ZC-2 primarily through their direct sales channel. Pricing is not public and typically requires a login or registration on the Zircar Ceramics website to view current quotes.
- Standard Size: The standard unit is a 1-gallon pail (Item #A39-01), which weighs approximately 12.9 lbs.
- Custom Orders: Custom preparations, such as larger 5-gallon buckets, can be requested for high-volume industrial needs.
- Lead Time: ZC-2 is typically made-to-order, with a standard lead time of approximately 7 business days after an order is accepted.
If you are looking to purchase or get a quote, you should visit the official Zircar Ceramics product page to register for a customer account or contact their sales department directly.
Conclusion
Zirconia Coating Type ZC-2 is an indispensable tool for foundries, laboratories, and manufacturing plants where heat and chemical reactivity are daily hurdles. By providing a high-purity, non-reactive barrier, it extends the life of expensive equipment and improves the quality of the final product.
For specific safety data (SDS) or technical data sheets (TDS), always consult the official Zircar Ceramics documentation provided with your order.
