CORUNDUM

Corundum is a highly abrasive natural material, among the hardest minerals in nature after diamond. Its high hardness makes it an extremely effective abrasive for cleaning, roughening, and preparing metal surfaces before coating. Its inherent resistance to heat and chemicals makes it a preferred material for refractory applications and various industrial applications.

Technical Specifications:

Hardness: 8–9 Mohs
Density: 3.95 – 4.10 g/cm³
Grain Structure: Sharp angular
Color: Dark gray/brownish natural tone
Durability: Very high, minimal breakage under impact
Chloride / Sulfate: Very low (suitable for marine applications)

Advantages:

Very fast surface removal performance
Quickly cleans rust, blades and welding burrs
High repeatable lifespan
Creates a high profile (50–120 µm)
Controlled operation with low dusting

Areas of Use:

Heavy industry steel surface preparation
Shipbuilding and shipyard applications
Bridge, dam, refinery steels
Surface cleaning after welding
Surface roughening before thermal spray coating

You can get stock and price information along with the grain size or code for the corundum blasting sand you need.