TECHNICAL SPECIFICATIONS
SIO2 PURITY
98.5%+
Ultra-high purity silica sand, engineered for maximum chemical stability and thermal resistance across all industrial applications.
REFRACTORINESS
1600°C+
Exceptional thermal stability, maintaining structural integrity at extreme temperatures for high-performance foundry and refractory systems.
GRAIN SHAPE
SUB-ANGULAR
Optimized particle geometry for superior packing density and mold strength, ensuring high-quality casting and consistent surface finishes.
CLAY CONTENT
< 0.1%
Ultra-low clay content for high permeability, reduced gas defects, and consistent mold performance in critical foundry applications.
BULK DENSITY
1.45–1.55 g/cm³
Optimized bulk density for stable mold compaction, uniform metal flow, and reduced casting defects across high-volume foundry operations.
LOSS ON IGNITION (LOI)
< 0.5%
Low LOI ensures minimal gas generation, cleaner castings, and improved dimensional accuracy for demanding foundry applications.
GRADE RANGES
Technical specifications for precision-graded silica sand, engineered for high-performance industrial applications.
AFS 25-30
Foundry Sand: High strength, low moisture, ideal for large-scale casting.
Three Sieve : 30-40-50 = 95%+
COA Verified
AFS 30-40
Foundry Sand: Medium strength, excellent surface finish for intricate molds.
Three Sieve : 30-40-50 = 85%+
COA Verified
AFS 40-50
Foundry Sand: High strength, high refractoriness, for high-temperature applications.
Three Sieve : 40-50-70 = 85%+
COA Verified
AFS 50-60
Foundry Sand: Premium strength, low clay, high purity for critical casting.
Three Sieve : 50-70-100 = 90%+
COA Verified
AFS 60-70
Foundry Sand: Ultra-high strength, ultra-low moisture, for precision casting.
Four Sieve : 50-70-100-150 = 95%+
COA Verified
AFS 70-80
Foundry Sand: Maximum strength, minimum clay, for high-precision casting.
Four Sieve : 50-70-100-150 = 85%+
COA Verified
AFS 80+
Foundry Sand: Premium strength, ultra-low moisture, for precision casting.
Four Sieve : 70-100-150-200 = 95%+
COA Verified