Mullite Sand

Jar Hing is a professional manufacturer with more than 16 years of experience, offering high purity mullite sand for investment casting and matched mullite flour for ceramic shell making. Low thermal expansion & high refractoriness are ideal substitutes for zircon sand for stainless steel precision casting.

High purity Mullite Sand for investment casting, matched mullite flour for shell stucco. Low iron, great thermal shock resistance, ideal refractory for precision alloy casting with full mesh customization.

Our calcined Mullite Sand serves as core refractory material for investment casting shell making. Uniform grain distribution and excellent shakeout performance reduce casting defects; cooperate with mullite powder to produce smooth, high-precision metal castings for automotive & machinery industries.

Premium Mullite Sand for Investment Casting, paired with matching mullite flour to build stable casting shell molds. Featuring low thermal expansion and high refractoriness, this aluminosilicate refractory delivers precise dimension control for stainless steel & alloy precision casting, with customizable mesh sizes available for your foundry production.

Our mullite sand is a premium alumina-silica refractory material produced by sintering or electric melting. Featuring high refractoriness, low thermal expansion, superior thermal shock resistance and stable chemical performance, it is widely used for shell making in investment casting and precision casting. Available in multiple grades and particle sizes, our products effectively prevent sand sticking, reduce casting defects and simplify shakeout process, ideal for aerospace, automotive and general industrial casting applications.

Our mullite sand is a premium alumina-silica refractory material produced by sintering or electric melting. Featuring high refractoriness, low thermal expansion, superior thermal shock resistance and stable chemical performance, it is widely used for shell making in investment casting and precision casting. Available in multiple grades and particle sizes, our products effectively prevent sand sticking, reduce casting defects and simplify shakeout process, ideal for aerospace, automotive and general industrial casting applications.