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These pictures show the differences between blasting an aluminum part (middle of top picture) with either a Glass Bead ' 100/170 Medium-Fine and Aluminum Oxide Grit ' 220 Mesh.

The Glass Bead blasted part has much more a peened, smooth, uniform finish. The Aluminum Oxide Grit blasted part also has a uniform finish but is more etched and 'darker'.

Glass Beads vs Aluminum Oxide Grit

Surface treatment benefits from blasting with aluminum oxide grit. Aluminum oxide grit is a highly abrasive substance that can be used to remove difficult coatings, corrosion, and surface impurities. It is frequently utilized in heavy-duty applications that necessitate intense cleaning and surface preparation.

Aluminum oxide grit has high abrasion resistance, making it ideal for use on tough surfaces like steel or concrete. It also provides a longer-lasting blasting media than softer abrasives. Furthermore, aluminum oxide grit is a cost-effective and environmentally beneficial solution because it can be recycled and reused several times.

Overall, aluminum oxide grit blasting is a dependable method for delivering efficient and comprehensive surface cleaning and preparation. Blasting using glass beads has numerous noticeable advantages. For starters, it cleans surfaces effectively and efficiently, eliminating rust, scale, and pollutants. Glass beads' tiny abrasive action allows complete cleaning without hurting the underlying material.

Second, glass bead blasting produces a smooth and aesthetically attractive finish by creating a homogeneous and consistent surface texture. It aids in the removal of surface defects and prepares the surface for further treatment or coating treatments. Glass beads are also non-toxic and environmentally beneficial. They may be recycled and reused, decreasing waste and minimizing environmental effect.

In general, glass bead blasting is a versatile and beneficial process for obtaining greater surface preparation and improving the quality of a variety of materials.

Glass Bead vs. Aluminum Oxide Abrasives

The abrasive you choose for your surface preparation project will dramatically impact the final finish and appearance of your product, as well as the efficiency and cost of your project. Two common abrasives, glass bead and aluminum oxide abrasives, offer different results and have optimal uses in different applications. Read on to learn more about these two abrasive types and when you should use them.

Glass Bead vs. Aluminum Oxide Abrasives: Characteristics and Applications

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While both glass bead and aluminum oxide abrasives can achieve high-quality abrasion, they each have their own strengths.

Glass Bead Abrasives

These versatile, spherical beads are small in size but available in varying dimensions to enable greater flexibility in surface finishing options. Using glass beads creates a bright, smooth, soft finish for aesthetically pleasing metal surfaces. Importantly, glass beads also have the ability to clean and finish a surface without eliminating much material from the surface itself. Their glass construction makes them recyclable as well as chemically inert, and with no free silica, they release no dangerous chemicals during abrasion.

Glass Bead Abrasive Applications

Glass bead abrasives have numerous applications, some of which are:

• General cleaning

• Blasting parts

• Removing mold

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• Peening for fatigue reduction in metal components

• Light deburring

• Preparing sensitive or reactive surfaces without leaving a residue or base metals

• Treating stainless steel components

• Finishing surfaces for a satin aesthetic

Aluminum Oxide Abrasives

Compared to glass beads, aluminum oxide abrasives are more aggressive as the material is very strong, hard, and dense. Because of these characteristics, these abrasives can handle abrasion tasks for a myriad of material surfaces. Aluminum oxide abrasives work on glass, wood, and a wide variety of metals, including stainless steel and titanium. The aluminum oxide will break down over time, especially if it's used against hard materials at high pressures, but it's cost-effective in that it's recyclable. Also, you can store it for long periods of time without it degrading. This virgin-fused abrasive comes in two types: white and brown. 

Aluminum Oxide Abrasive Applications

Some of the most common applications for aluminum oxide abrasives are:

• Dry or wet abrasive blasting

• Creating a skid-free surface

• Etching to prep a surface for enhanced coating adhesion

• Polishing

• Stripping away rust, paint, scale, and related debris

• Refractory coating for thermal resistance

Order High-Quality Abrasives From Dawson-Macdonald Co.

For nearly 100 years, Dawson-Macdonald Co., Inc. has provided diverse industries with an array of high-quality abrasive materials for effective surface preparation. We're the largest distributor in the Northeast for surface preparation supplies and equipment, allowing us to serve our clients with time-tested, safe abrasive solutions at competitive prices. 

We source our abrasives from premier manufacturers to ensure quality, and we stock more than 200 tons of abrasive materials in our warehouse. To deliver comprehensive product offerings, we also provide blast equipment (including shot, wheel, and wet blast equipment), safety gear, accessories, spare parts, and more.

Contact us to learn about our products and the brands we offer, read our blog for answers on how to choose the right abrasive media, or request a quote today to start your order.

The company is the world’s best glass in buildings supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.