Industrial Chemicals

Calcined Alumina

Testing details line 1

Sakthima Groups of Companiess provides high-performance materials for global infrastructure and manufacturing.

Premium Quality

Key Benefits

	Smooth Finish	Provides a superior, even surface for flawless painting results.
	High Whiteness	Enhances the true color and brightness of your chosen paint.
	Strong Adhesion	Deep bonding technology ensures long-lasting durability.
	Crack Resistant	Formulated to resist surface cracking, shrinkage, and flaking over time.

Calcined Alumina is specially formulated for modern construction needs and delivers excellent performance on a wide range of surfaces.

Specification Parameter	Refractory Premium	Ceramic Low Soda	Glass Polishing	Abrasive Grade	Glaze Grade
Al2O3 Content	≥ 99.5%	≥ 99.6%	≥ 99.2%	≥ 99.0%	≥ 98.5%
Na2O Content	≤ 0.35%	≤ 0.10%	≤ 0.40%	≤ 0.45%	≤ 0.55%
Fe2O3 Content	≤ 0.02%	≤ 0.015%	≤ 0.03%	≤ 0.04%	≤ 0.05%
SiO2 Content	≤ 0.03%	≤ 0.02%	≤ 0.04%	≤ 0.05%	≤ 0.08%
Alpha Al2O3 Phase	≥ 95%	≥ 92%	≥ 90%	≥ 93%	≥ 85%
Loss on Ignition (LOI)	≤ 0.2%	≤ 0.3%	≤ 0.4%	≤ 0.5%	≤ 0.8%
Specific Surface BET	1.0 - 2.5 m2/g	0.8 - 1.5 m2/g	3.0 - 5.0 m2/g	1.2 - 2.0 m2/g	2.0 - 4.0 m2/g
Median Particle (D50)	3.5 - 5.0 µm	2.0 - 3.5 µm	1.5 - 2.5 µm	12 - 18 µm	5.0 - 8.0 µm