Biasill® sand is a slightly finer grade of staurolite sand than our coarser Starblast blasting abrasives and is CARB-certified. Biasill® is the product of choice for low free-silica air sandblasting. It cleans faster and more safely and efficiently than silica sand. It is most useful where mill scale and light rust are to be removed and in applications where a shallow profile is desired. Its fine grade enables Biasill® to be used on softer substrates, such as aluminum, composites, fiberglass, and similar materials Foundries use Biasil® sand in the molding process because of its low coefficient of thermal expansion and high thermal conductivity reduce casting defects and yield improved metal surfaces. When used in molding, the low coefficient of thermal expansion and high thermal conductivity of Biasill® reduce casting defects and yield improved metal surfaces. Its AFS grain fineness (66-75) makes it suitable for most foundry mold applications that involve aluminum, magnesium, brass, bronze, and certain ferrous metals (in specialized applications only).
When blended with silica sand to produce small iron castings, Biasill®
- Lowers binder demand, less gas evolution, and easier sand reclamation
- Lowers thermal expansion, good control of expansion defects, and good casting definition and dimensional accuracy
- Yields denser structure and metal structure
Safety and Handling
Biasill® Staurolite Sand Datasheet