Improvement by nature

Bone ash

Sonac is a leading producer of bone ash.

For the production of bone ash only fresh bones have been used, coming from animals which have been found healthy and fit for human consumption by the veterinary authority. Bone ash is obtained from crushed, degreased and degelatinised bone chips and calcined at high temperatures. Several qualities bone ash are obtained by special milling and sifting procedures. The production takes place in Vuren, The Netherlands.

Bone ash is free from organic material and chemically inert.

Bone Ash for the aluminium industry

Sonac Bone Ash MC is especially developed for the non-ferrous metals casting industry as a coating and release agent. It doubles working life of launders, moulds and equipment.

Bone ash MC is a fine powder with unique characteristics as a superior protective coating for casting of aluminium, refined copper and copper alloy. Bone ash MC is extremely suitable as a protective coating for launders and moulds. The bone ash prevents the launders from early wearing and cracking and increases their life expectancy. As a dry powder it is also used to seal gaps and cracks in refractory launders.
Furthermore, this product can be used as an easy-release agent. It prevents metal from sticking to the surface of the moulds and makes it easier to remove the cast parts. As a slurry, blended with water, it also protects metal working tools.
In addition, the material is safe, clean, odourless, smokeless and has no dust build-up during processing.

For further product advantages and information about dry and wet application, you can read our leaflet:

Sonac leaflet bone ash MC & technical gelatins