Comprehensive Guide to Choosing the Best Sandblasting Media
MediaDescriptionUsed forHardnessShapeSoda
Soda abrasive is made from baking soda or bicarbonate of soda. It offers non-destructive cleaning and is very popular among operators.It removes rust from metals without causing depression or damaging the metal beneath the rough surface.2.5AngularCoal Slag / Aluminum Silicate
It is a dispensable abrasive, a by-product of coal-fired electric power generation plants. Compared to Copper Slag, it produces less dust.It is often used in open blasting operations in the oil- and shipyard industry and other metal surface treatments.6-7AngularAluminum Oxide Grit(Brown Corundum)
An extremely sharp, long-lasting blasting abrasive that can be recycled many times, it is available in a 99.5% pure white grade and commonly standard brown.Aluminum Oxide Grit is often used in surface treatments and preparations.8-9AngularCrushed Glass Grit
Crushed Glass Grit is made of 100% recycled glass beads. It is considered to be eco-friendly and health-friendly, as it eliminates the presence of airborne carcinogens. It is also non-toxic and non-hazardous.This is used in profiling and removal of coatings and surface contamination and can be used around water.5-6AngularSteel Grit
It is softer than Aluminum Oxide Grit but still has a high hardness quality. It has very fast stripping action and shot-peening applications.It is commonly used in cleaning, etching, and surface preparations.40-65 HRCAngularStaurolite
It is a Silicate of Silica and Iron and is generally used to remove thin coatings, rust, and mill scale. Its sub-angular shape is ideal for applications requiring a minimal surface profile.Ideally used in stripping off surfaces in storage tank & tower construction, structural & plate steel blasting, and steel fabrication.7.0 MohsSub-angularMediaDescriptionUsed forHardnessShapeGlass Beads
Glass Beads are manufactured into preformed ball shapes, which effectively leave very smooth surfaces. Compared to angular abrasives, they produce a super smooth and brighter finish, and glass beads can be recycled up to 30 times.Commonly used for automotive restoration, stainless steel fabrication, polishing of castings, and light deburring of metal molds and parts.6-6RoundSteel Shot
Steel Shot is manufactured into a spherical pellet-type abrasive made from carbon steel. It often produces a very smooth surface after use.Steel shot abrasives are often used to clean and polish metal surfaces and parts in automotive, aerospace, construction, foundry, shipbuilding, rail, and other industries.40-51 HRCSphericalSteel Grit
It is softer than Aluminum Oxide Grit but still has a high hardness quality. It has swift stripping action and shot-peening applications.It is commonly used in cleaning, etching, and surface preparations.40-65 HRCAngularCorn Cob Grit
Corn Cob Grit is an organic, soft, and natural abrasive made from hard cobs. It is tumbling and absorbent and dries surfaces. Corn cob grit is non-toxic and safe for operators.It is best used on wood surfaces and does not create any damage on the treated surface. It is used on oily and moist surfaces that quickly absorb it while finishing rough parts.4-4.5Ground, Angular shapeWalnut Shell Grit
It is a very versatile soft abrasive, organic, and biodegradable. Like corn cobs, it is non-toxic and poses no health hazard.Walnut Shell Grit is best used in stripping and cleaning delicate surfaces and parts. It provides effective applications such as cleaning hardwoods, aircraft, and automotive stripping.4.5-5AngularCopper Slag / Iron Silicate
In contrast to its name, it contains almost no copper. It is the best abrasive to use when ranked on cutting speed and cost per sq. ft.It comes in an extra fine-grade abrasive used for surface blast-cleaning carpets, plastic, and wood.7AngularGarnet
Garnet is a natural silicate mineral deposit. It has a high stripping rate, very low dust, and the lowest consumption rate.It is mainly used for wet or dry sandblasting and offers excellent coating preparation and adhesion properties.6.5 - 7.5Angular to Subangular
Blasting and Spray Equipment Buying Guides - BlastOne Australia
Buying Guides
BlastOne has put together for the benefit of the abrasive blasting industry, a range of informative & unbiased buying guides for key equipment purchases, so customers can make informed decisions & buy equipment with peace of mind that the equipment will perform as expected.
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