Bone Ash For Silver & Brass Casting – Heat Resistant Coating Material

 

 

Bone Ash for Silver & Brass Casting – Heat Resistant Coating Material

 

📘 Product Overview:

Bone Ash is a fine white powder produced by calcining animal bones (mainly cattle bones) at high temperatures (typically 1000–1300°C) to remove organic matter, leaving behind a highly purified form of tricalcium phosphate.

Chemical Formula: Mainly Ca₃(PO₄)₂ (Tricalcium Phosphate)

Purity: 95–99% depending on grade

Appearance: Fine, odorless, white powder

Particle Size: Typically 200–325 mesh

 

Bone ash has been used for centuries as a key material in the casting of silver and brass due to its heat resistant properties. This natural material, derived from animal bones, is known for its ability to withstand high temperatures without melting or deforming, making it an ideal coating material for molds used in metal casting.

When metal is melted and poured into a mold, the mold needs to be able to withstand the extreme heat without breaking down. Bone ash provides a protective layer that helps to insulate the mold and prevent the metal from sticking to it. This results in a clean and smooth finish on the final casted piece.

In addition to being heat resistant, bone ash also helps to improve the overall quality of the casted metal. It acts as a flux, which helps to remove impurities and gases from the molten metal, resulting in a cleaner and stronger final product. This is especially important in jewelry making, where the quality of the metal is crucial to the final design.

Bone ash is also environmentally friendly, as it is a natural material that can be easily recycled and reused. This makes it a sustainable choice for artisans and manufacturers who are conscious of their environmental impact.

To use bone ash in the casting process, it is mixed with water to form a slurry, which is then brushed or sprayed onto the mold before casting. The bone ash coating helps to create a barrier between the metal and the mold, ensuring a smooth and clean release when the casting is complete.

Overall, bone ash is a versatile and valuable material for silver and brass casting. Its heat resistant properties, ability to improve metal quality, and eco-friendly nature make it a popular choice for artisans and manufacturers alike. Whether you are creating jewelry, sculptures, or decorative pieces, bone ash can help you achieve high-quality results in your metal casting projects.

 

 

 

  

🌍 Why Choose Our Bone Ash?
✔️ Sourced from quality animal bone and processed under controlled high-temperature kilns
✔️ Consistent particle size & purity for stable production use
✔️ Technical support for ceramic, metallurgical, and polishing applications
✔️ Export-ready packaging and documentation (COA, MSDS, SGS available)

 

 

 

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