Aluminum Oxide Abrasive Blasting Media Grit (Standard)
Aluminum Oxide Blasting Media Grit (Standard) is a sharp, long lasting abrasive media that is highly efficient and highly reusable. Harder than most blast media, Aluminum Oxide Blast Media, will clean and etch quickly on all type of surfaces.
ALUMINUM OXIDE BLASTING MEDIA FOR PRECISION SURFACE PREPARATION AND FINISHING
Aluminum Oxide Blasting Media is a sharp, durable, and highly reusable abrasive used for surface preparation, cleaning, etching, coating removal, and coating preparation. Its angular grain provides fast cutting action and can be recycled multiple times in suitable blasting systems.
Kramer Industries offers Aluminum Oxide Grit in a wide range of mesh and grit sizes for different blasting and surface finishing requirements. The appropriate grade depends on the material being treated, the amount of material being removed, and the desired surface profile.
What Is Aluminum Oxide Blasting Media Used For?
This abrasive is primarily used to remove coatings, rust, scale, oxidation, and other unwanted surface material while creating a controlled surface profile. It is also used for metal etching, cleaning, preparation for coatings and bonding, and other industrial surface treatment applications.
Its hardness and angular grain provide effective cutting action when efficient material removal and a defined surface texture are required.
Benefits
- Highly Durable and Reusable
- Long Lasting
- Harder Than Most Blasting Media
- Fast Cutting Action
- Suitable for Applications Ranging From Heavy Blasting to Light Etching
- Available in a Wide Variety of Mesh/Grit Sizes
- Lighter Than Metallic Media With a Denser Blast Stream
- Silica Free
Blasting Applications
- Etching Metal
- Paint Stripping
- Preparing Surfaces for Coatings
- Monument Etching
- Cleaning Discoloration From Welding
- Surface Preparation for Metalizing and Welding
- Preparation for Bonding
General Applications
- Non-Skid Flooring
- Sanding
- Abrasion Resistance
- Slurry Polishing
- Paint Filler
- Grinding
- Cue Tip Chalk
- Edge Rounding in Tumbling
- Wear Resistance
- Wet and Dry Barrel Tumbling
Surface Preparation With Aluminum Oxide
For applications requiring efficient coating removal and controlled surface preparation, aluminum oxide grit blast media provides a hard, angular abrasive that can create the required surface profile. It can be used before painting, coating, metalizing, welding, or bonding.
The selected grit size and blasting conditions influence the resulting surface profile. Coarser grades generally provide more aggressive cutting, while finer grades allow more controlled etching and surface preparation.
Sandblasting Applications and Media Selection
When consistent cutting performance and abrasive durability are important, aluminum oxide sandblasting media can be selected for a range of surface treatment applications. It can be used on various metal surfaces and selected glass, stone, ceramic, and other compatible materials.
The available range of mesh sizes allows this abrasive to support both heavier material removal and more controlled surface treatment. When selecting aluminum oxide sandblasting media, consider the substrate, coating thickness, desired surface profile, blasting pressure, and required final finish.
Industrial Applications and Abrasive Performance
As an Aluminum Oxide Blasting Abrasive, this material is suitable for applications requiring strong cutting action and consistent abrasive performance. The same Aluminum Oxide Blasting Abrasive can be used for paint removal, rust and scale removal, metal etching, coating preparation, welding preparation, and other industrial surface treatment processes.
Kramer Industries also supports applications where the material is used in selected tumbling and polishing processes, provided its hardness and cutting characteristics are appropriate for the application.
How to Choose the Right Grit Size
Choosing the correct grit size is important for achieving the required result during blasting. Aluminum Oxide Blasting Media is available in different grades to support varying levels of material removal and surface profiling.
Consider:
- Substrate material and hardness
- Coating thickness
- Amount of material to be removed
- Desired surface profile
- Required final appearance
- Blasting pressure
- Nozzle configuration
- Application and production requirements
In general, coarser grades provide more aggressive cutting and deeper surface profiles, while finer grades are better suited to controlled etching and finer surface preparation.
Kramer Industries can help identify an appropriate grit size based on the material, blasting process, and desired surface result.
How Grit Size Affects Surface Profile
Grit size directly affects the texture produced during blasting. Coarse grades can create deeper profiles for applications involving heavier coatings or stronger coating adhesion requirements. Finer grades produce a smoother, more controlled texture for lighter coatings, precision preparation, or aesthetic etching.
Blasting pressure, nozzle angle, distance, substrate hardness, and the selected abrasive also influence the final profile. Grit selection should therefore consider the complete blasting process rather than particle size alone.
Reusability and Media Life
One of the advantages of aluminum oxide is its durability and reusability. When used in a suitable blasting system, the abrasive can be recovered and reused multiple times.
Aluminum Oxide Blasting Media can provide extended service life when recovery and blasting conditions are properly managed. The actual service life of aluminum oxide blast media varies depending on blasting pressure, substrate, contamination, recovery equipment, and the surface profile required.
For operations using aluminum oxide blast media repeatedly, recovery equipment and blasting conditions can influence overall media consumption and performance. As particles break down and become less effective, the media should be replaced or replenished according to the requirements of the blasting process.
Aluminum Oxide Compared With Other Abrasives
Aluminum Oxide Blasting Media is often selected when a hard, angular abrasive with strong cutting action is required. Its hardness makes it suitable for applications where efficient material removal and a defined surface profile are important.
Compared with softer, rounder abrasives, Aluminum Oxide Grit generally provides more aggressive cutting and a more pronounced etched profile. The appropriate abrasive ultimately depends on the substrate, required finish, production requirements, recovery capabilities, and overall blasting process.
Existing product specifications, mesh-size information, particle-size data, and technical specification tables remain completely unchanged.
Specifications
Aluminum Oxide Grit (Standard) Specifications |
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|---|---|---|
Mesh Size |
Average Particle Sizethe smaller the mesh number, the coarser the grit |
Spec Sheet |
|
8 Mesh
|
45% 8 mesh (2.3 mm) or larger |  |
|
10 Mesh
|
45% 10 mesh (2.0 mm) or larger | |
|
12 Mesh
|
45% 12 mesh (1.7 mm) or larger | |
|
14 Mesh
|
45% 14 mesh (1.4 mm) or larger | |
|
16 Mesh
|
45% 16 mesh (1.2 mm) or larger | |
|
20 Mesh
|
45% 20 mesh (0.85 mm) or larger | |
|
22 Mesh
|
45% 20 mesh (0.85 mm) or larger | |
|
24 Mesh
|
45% 25 mesh (0.7 mm) or larger | |
|
30 Mesh
|
45% 30 mesh (0.56 mm) or larger | |
|
36 Mesh
|
45% 35 mesh (0.48 mm) or larger | |
|
40 Mesh
|
45% 40 mesh (0.42 mm) or larger | |
|
46 Mesh
|
45% 45 mesh (0.35 mm) or larger | |
|
54 Mesh
|
40% 50 mesh (0.33 mm) or larger | |
|
60 Mesh
|
40% 60 mesh (0.25 mm) or larger | |
|
70 Mesh
|
40% 70 mesh (0.21 mm) or larger | |
|
80 Mesh
|
40% 80 mesh (0.17 mm) or larger | |
|
90 Mesh
|
40% 100 mesh (0.15 mm) or larger | |
|
100 Mesh
|
40% 120 mesh (0.12 mm) or larger | |
|
120 Mesh
|
40% 140 mesh (0.10 mm) or larger | |
|
150 Mesh
|
40% 200 mesh (0.08 mm) or larger | |
|
180 Mesh
|
40% 230 mesh (0.06 mm) or larger | |
|
220 Mesh
|
40% 270 mesh (0.046 mm) or larger | |
|
240 Mesh
|
38% 325 mesh (0.037 mm) or larger | |
|
280 Mesh
|
25-60% 325 mesh (0.037 mm) or larger | |
|
320 Mesh
|
60% 325 mesh (0.037 mm) or finer | |
|
360 Mesh
|
Median: 20.1-23.1 micron | |
|
400 Mesh
|
Median: 15.5-17.5 micron | |
|
500 Mesh
|
Median: 11.3-13.3 micron | |
|
600 Mesh
|
Median: 8.0-10.0 micron | |
|
800 Mesh
|
Median: 5.3-7.3 micron | |
|
1000 Mesh
|
Median: 3.7-5.3 micron | |
|
1200 Mesh
|
Median: 2.6-3.6 micron | |
Frequently Asked Questions
Q1. What is aluminum oxide used for in sandblasting?
Aluminum oxide is used for surface preparation, paint and coating removal, rust and scale removal, cleaning, and metal etching. Its hard, angular grains provide effective cutting action and can create a controlled surface profile for subsequent coating or bonding.
Q2. Where can I buy aluminum oxide blast media?
Aluminum oxide blast media is available from industrial abrasive suppliers in a range of grit sizes and package quantities. Kramer Industries offers this abrasive for blasting, surface preparation, etching, and other industrial applications.
Q3. Is aluminum oxide blast media safe to use?
Aluminum oxide should be handled and used according to the product safety documentation and the requirements of the blasting equipment. Appropriate ventilation, dust control, personal protective equipment, and safe blasting practices should be followed during use.
Q4. What grit size should I use for aluminum oxide blasting?
The appropriate grit size depends on the substrate, coating or contamination being removed, desired surface profile, and blasting conditions. Coarser grades generally provide more aggressive cutting, while finer grades are suited to controlled etching and surface preparation.
Q5. Can aluminum oxide blast media be reused?
Yes. Aluminum oxide can be recovered and reused in suitable blasting systems. Its actual service life depends on the equipment, operating pressure, substrate, contamination, recovery system, and required surface result.
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