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TYPICAL SIZES, DENSITIES, AND NAMES
OF EXPANDED VERMICULITE1

SIZES DENSITIES GRADES OR SIZES
MM IN U.S. Standard
Inch/Sieve KG/CU M LB/CU FT U.S. SYSTEM INTERNATIonAL
8 to 16 5/8 5/16 to 5/8 56-72 3.5-4.5 N/A Premium (6)
4 to 8 5/16 5 mesh to
5/16 inch 64-85 4.0-5.0 1 Large (4)
2 to 4 5/32 10 mesh to
5 mesh 72-90 4.5-5.5 2 Medium (3)
1 to 2 0.08 18 mesh to
10 mesh 75-112 4.7-7.0 3 Fine (2)
0.5 to 1 0.04 35 mesh to
18 mesh 80-144 5.0-9.0 4 Super Fine (1)
less than 0.5 0.02 less than
35 mesh 90-160 5.6-10.0 5 Micron (0)