Aluminum Stearate

Paint Additive: Acts as a thickening and anti-settling agent in solvent-based paints to improve pigment suspension and brushability.
Lubricating Greases: Functions as a gelling agent to produce greases with high dropping points and water resistance for heavy machinery.
Waterproofing: Applied in the construction industry as a water-repellent additive for mortars, plasters, and concrete structures.

Aluminium Tristearate, Aluminum Octadecanoate, Tribasic Aluminum Stearate.

CAS: 637-12-7
EC: 211-279-5
Sectors: Lubricants & Metalworking, Coatings, Adhesives, Sealants & Elastomers, Building & Construction

Aluminum Stearate (CAS 637-12-7) is a metallic soap supplied as a white powder with a consistent metal content, used to gel lubricating greases, thicken and anti-settle solvent-based paints, and waterproof mortars, plasters, and concrete. This Industrial Grade powder is recognized for its ability to form stable gels when dispersed in non-polar solvents and oils.

It serves as a powerful hydrophobic agent, providing long-lasting water repellency to masonry, cement, and textile products. Its fine particle size and high surface area ensure easy incorporation into coatings and lubricating greases.

Our product is processed to maintain a consistent metal content, which is critical for achieving predictable viscosity and leveling in paints. It is chemically inert and offers excellent heat stability, making it suitable for high-temperature manufacturing.

Typical Properties

Molecular formula	C₁₈H₃₆O₂.1/3Al
Molecular weight	877.39 g/mol
Appearance	solid
Form	powder
Color	white
Melting point	118 °C
Boiling point	250°C[at 101 325 Pa]
Density	1.070 g/cm³
Grades available	Technical Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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