White fused alumina 500# 600# 700# 800# for Gelcoat coating

White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.

Size	D0	D3	D50	D94
240#	≤127	≤103	57±3.0	≥40
280#	≤112	≤87	48±3.0	≥33
320#	≤98	≤74	40±2.5	≥27
360#	≤86	≤66	35±2.0	≥23
400#	≤75	≤58	30±2.0	≥20
500#	≤63	≤50	25±2.0	≥16
600#	≤53	≤41	20±1.5	≥13
700#	≤45	≤37	17±1.5	≥11
800#	≤38	≤31	14±1.0	≥9
1000#	≤32	≤27	11.5±1.0	≥7
1200#	≤27	≤23	9.5±0.8	≥5.5
1500#	≤23	≤20	8±0.6	≥4.5
2000#	≤19	≤17	6.7±0.6	≥4.0