GARNET
High-performance mineral abrasive preferred in industrial sandblasting, waterjet cutting and surface preparation with its natural hardness, high density and environmentally friendly structure.
What is Garnet?
Garnet is a mineral group that is among the silicate group minerals and is widely found in nature. Garnet used in industrial applications is mostly in its naturally mined and processed form; The most common of these almandine is the type.
Garnet is obtained by grinding natural garnet rock and delivers reliable industrial performance with its balanced hardness and density. On the Mohs hardness scale, it is standardized at 7.5 - 8.0, which supports consistent abrasive performance.
Garnet offers many advantages over abrasive natural materials such as silica sand: it contains no free silica, is non-toxic, environmentally friendly and is multi-use.
Physical and Chemical Properties
The basic physical and chemical parameters behind Garnet's preference in terms of industry.
Physical Properties
| Feature | Value |
|---|---|
| Specific gravity | 4 |
| Bulk density | 2.3 T/m³ |
| Hardness (Mohs) | 7.5 - 8.0 |
| Melting Point | 1250 °C |
| Grain Shape | Sub-angular (Irregular/Angular) |
| Durability | High |
| Free Flow | 97% minimum |
| Moisture Absorption | Not hygroscopic |
| Acid Sensitivity | None |
| Magnetic Property | Very light magnetic |
| Electrical Transmission | 10 µS/m |
| radioactivity | Not detected |
Chemical Composition
| Component | 01-GA-80 | 01-GA-30/60 |
|---|---|---|
| SiO2 | 39/27 | 39/27 |
| Al2O3 | 19/17 | 19/18 |
| BaO | < | < |
| CaO | 3/97 | 3/95 |
| Fe2O3 | 31/71 | 31/95 |
| K2O | 0/09 | 0/07 |
| MgO | 2/53 | 2/44 |
| MnO | 1/8 | 1/88 |
| Na2O | < | < |
| P2O5 | < | 0/06 |
| SO3 | < | < |
| TiO2 | 0/85 | 0/95 |
Mineralogical Structure
| Garnet (Almandine) | Ilmenite | Quartz | Other |
|---|---|---|---|
| Dominant phase | 1 – 2% | 0.5% | 0.5% |
Garnet Crystal Structure
Application Area
Laboratory Analysis
Safety and Environmental Compliance
Garnet has superior properties in terms of human health and environmental safety.
Does Not Contain Free Silica
It does not cause silicosis. Meets occupational health and safety requirements.
Eco-Friendly
It is a natural and inert mineral that does not contain toxic substances and carcinogenic components.
Does not absorb moisture
It is not hygroscopic; There are no moisture-related problems during storage and use.
Not Radioactive
Radioactivity was not detected. It does not contain heavy metals and can be used safely.
Reusable
Thanks to low brittleness and high hardness, it provides multi-use service life.
Low Dust Generation
It produces much less dust compared to traditional silica sand and provides a clean working environment.
Non-Corrosive
It can be used on all metallic or non-metallic surfaces without any corrosive effect.
High Efficiency
It is an economical solution with low consumption (kg/m²) and high production (m²/hr) rates.
Garnet Grain Sizes
It is offered in a variety of mesh sizes optimized for different industrial applications.
| Mesh Size | Size Range (mm) | Typical Usage |
|---|---|---|
| 12/20 Mesh | 0.50 – 1.20 | Heavy sandblasting, ship blasting |
| 20/40 Mesh | 0.50 – 1.00 | General sandblasting, bridge cleaning |
| 30/60 Mesh | 0.20 – 0.60 | Surface preparation, before painting |
| 80 Meshes | 0.18 – 0.35 | Waterjet cutting, precision sandblasting |
| 120 Meshes | 0.18 – 0.25 | Waterjet cutting, glass processing |
| 180 Meshes | 0.09 – 0.15 | Fine cleaning, aircraft industry |
Industrial Usage Areas
Garnet is a preferred material in many different industries and applications with its versatile structure.
Sandblasting / Abrasive Surface Preparation
One of the most common uses of garnet is sandblasting processes. This includes cleaning metal surfaces from layers such as rust, old paint, dirt and oxide, and preparation before repainting or coating by creating surface roughness.
- High cutting efficiency and low dust production
- Multi-use structure for economical operation
- Effective performance in vehicle restoration projects
- Controlled cleaning on wood surfaces
- Suitable for blasting galvanized workpieces
- Keep the surface clean and smooth after use
- It can be easily used in injection and pressure sandblasting systems.
Waterjet Cutting
Garnet is used in cutting materials such as metal, stone, glass, marble, granite and high-strength steel under high pressure with water jet. It provides a more precise, clean-edged cut compared to mechanical cutting, and the internal structure of the materials is not damaged.
- Zero heat effect — no thermal deformation
- Does not cause clogging thanks to correct grain size distribution
- Ideal for cutting marble, granite, steel, glass and automotive glass
- Precision part cutting in the aerospace industry
Water Filtration Systems
Garnet offers an ideal water filter medium with its chemically inert and non-metallic structure, which is commonly found in the natural environment. Thanks to its high specific gravity, it is the heaviest filter bed material and can filter down to 10-20 microns.
- Used in drinking water, wastewater and industrial water treatment
- Meets NSF/ANSI 61 and AWWA B100-01 standards
- It is dense enough to allow faster backwashing
- High chemical and abrasive resistance
Shipbuilding and Scraping
Garnet is widely used in shipyards for corrosion removal of ship hulls and removal of old paint and epoxy. Thanks to its high specific gravity, grains hitting the surface provide strong energy transfer.
- Effectively removes scale, epoxy and thick coating
- Reusability reduces cost
- It does not have a corrosive effect and can be used safely on stainless surfaces.
Other Application Areas
Garnet's versatile structure makes it indispensable in many different industries.
Petrochemicals and Energy
12/20 and 20/40 mesh garnet is used in surface preparation, scale removal and pre-coating cleaning operations in petrochemical plants.
Aerospace
Precise surface cleaning and preparation of turbine blades, aluminum and special alloys is performed with 180 mesh fine-grained garnet.
Glass and Stone Work
Fine-grained garnet is used in polishing glass surfaces, marble and stone surface treatments and decorative applications.
Automotive and Construction
It provides reliable performance in vehicle restoration, surface preparation before painting, construction steel and bridge sandblasting operations.
Frames from Garnet Applications
Images from industrial sandblasting, ship blasting and surface preparation projects.
Industrial Sandblasting
Ship Scraping and Surface Cleaning
Surface Preparation
Industry Based User Guide
Detailed reference table showing recommended garnet size and intended use for each sector.
| Industry Branch | Recommended Mesh Size | Reason for Use |
|---|---|---|
| Ship Scraping / Sandblasting | 12/20 – 20/40 Mesh | Scale removal, epoxy removal, thick coating and rust removal |
| Bridge Sandblasting | 12/20 – 20/40 Mesh | Scale removal, heavy coating removal, reusability |
| Petrochemical Power Plants | 12/20 – 20/40 Mesh | Roughening and surface preparation before industrial painting |
| Roughening Before Painting | 12/20 – 20/40 Mesh | Optimum surface profile creation for coating adhesion |
| Water Filtration Systems | 12/20 Mesh | High life, reusability, chemical inertness |
| Glass Industry | 30/60 – 120 Mesh | Precise surface treatment, polishing, reusable |
| Water Jet Machines | 80 – 120 Meshes | Fast and precise cutting, cutting ability in all materials |
| Aircraft Industry | 180 Meshes | Gentle cleaning, non-corrosive, fast surface preparation |
| Turbine Blades | 180 Meshes | Ultra gentle cleaning, non-corrosive structure |
| Denim Grinding | 120 Meshes | Free silica and iron-free, fast grinding |
Why Should Garnet Be Preferred?
Advantages offered by garnet compared to traditional abrasive materials.
Garnet's Advantages
Garnet is an economical option compared to silica sand, steel and mineral grits due to its low consumption (kg/m²) and high production (m²/hr). With a Garnet Capacity of 10,000 Tons/Month and annual production of thousands of tonnes, it supports continuous high-volume supply.
Thanks to its high specific gravity (4.0-4.1), the grains hitting the surface during dirt and crust removal processes have high energy. Its angular grain structure provides a rapid cleaning effect on all types of materials.
Garnet grains create a smooth profile that is virtually filler-free and provides an excellent surface for the coating to adhere. Its non-porous, moisture-proof structure does not interfere with coatings.
Garnet Abrasive
- Does not contain free silica — No risk of silicosis
- Multi-use — Low total cost
- Low dust production — Clean working environment
- Does not have a corrosive effect — Used on all surfaces
- environmentally friendly — Does not contain toxic substances
- high efficiency — Low kg/m², high m²/hr
- Does not contain metallic iron — Safe in stainless steel
Traditional Abrasives (Silica Sand etc.)
- Contains free silica — Risk of silicosis disease
- Generally disposable — High consumable cost
- High dust production — Health and vision problems
- May have a corrosive effect on some surfaces
- Environmental concerns — Toxic particle release
- Lower efficiency — High consumption rate
- Risk of metal contamination — Unsuitable for sensitive surfaces
Usage Notes and Packaging
Things to consider when using garnet and delivery information.
Things to Consider
Although garnet is versatile and advantageous, there are some issues to consider when using it:
Equipment wear: Hard and sharp garnet grains can cause increased wear, especially on sandblasting nozzles and spray tubes. Regular maintenance and parts replacement are important.
Choosing the right grain size: If the mesh size appropriate to the application is not selected, efficiency will decrease. Determine the appropriate size according to the table above.
Collection for recycling: Garnet must be properly collected and cleaned to benefit from its reuse advantage.
Personal protective equipment: Although garnet produces less dust than silica sand, appropriate PPE (personal protective equipment) should be used during sandblasting operations.
Packaging Options
| Bag | 25 kg bags (40 pieces/pallet) |
| Big Bag | 1,000 kg big bags |
| Pouring | Bulk loading on demand |
Contact Us for Your Garnet Needs
Contact us to get a price quote and technical support about garnet sandblasting material, water jet sand and filtration products.