| Quantity: | |
|---|---|
20/40 30/60
SEPPE GARNET
25132000
Premium low‑dust garnet abrasive with 7.5–8.0 Mohs hardness — engineered for cleaner, safer sandblasting with superior reusability and consistent surface profiles.
▸ Garnet sand is a common chemically inert nonmetallic mineral in the natural environment. As a natural alluvial abrasive, its hardness, high specific gravity, chemical stability, and durability make it the ideal blasting media on the market.
▸ It is non-toxic, produces low dust, and causes no pollution — widely used for hardware sand blasting and surface cleaning. As one of the leading garnet abrasive suppliers in north China, SEPPE garnet is thoroughly tested by QC with complete particle size analysis and quality assurance.
▸ Low Dust = Safer Work Environment: SEPPE garnet's high toughness (low friability) means grains fracture less on impact, generating significantly fewer airborne fines than slag or silica abrasives. With less than 1% free silica, it eliminates the risk of silicosis and meets stringent HSE and OSHA workplace exposure limits.
▸ High Hardness = Longer Life & Lower Cost: At 7.5–8.0 Mohs, garnet resists breakdown under repeated impacts. This allows 3–5 reuse cycles compared to 1–2 for slag, cutting abrasive consumption and waste disposal costs by up to 60%.
▸ Better Visibility During Blasting: Low dust generation means operators maintain clear visibility of the work surface, improving blasting accuracy and reducing rework on complex structures.
▸ Consistent Cleaning Efficiency: Hard grains maintain their sharp angular edges longer, delivering consistent rust and coating removal rates from the first blast to the last reuse cycle.
▸ 20/40 Mesh : Heavy-duty rust removal, ship hull cleaning, and thick coating stripping — maximum impact with minimal dust.
▸ 30/60 Mesh : The most versatile grade for general steel surface preparation and maintenance — ideal balance of speed and low dust.
▸ 80 Mesh : Precise blasting for aluminum, stainless steel, and high-quality waterjet cutting — ultra-low dust for confined spaces.
▸ Garnet abrasive sand has the greatest potential and is the most widely used in the blasting field. It serves industries closely related to production, such as ship hulls, bridges, pipes, and steel structure sandblasting treatment. It delivers large blasting area per unit time, less sand consumption, and lower overall blasting costs.
▸ With hardness up to 8 Mohs and long service life, garnet produces an ideal angular rough surface on metal, increasing the surface area and improving the bonding force of the interface. This significantly enhances the adhesion of corrosion protection coatings to the metal surface.
▸ High density provides stronger impact force for better metal surface cleaning. Sharp angular edges with reasonable particle size distribution produce less dust and can effectively reach deep into holes and uneven parts to completely remove scale, rust, soluble salts, and other contaminants.
▸ The hardness‑dust connection: Because garnet grains resist fracturing (low friability), they produce far fewer airborne dust particles than softer, more brittle abrasives like slag. This means a cleaner worksite, better visibility, and full compliance with occupational exposure regulations — all while maintaining aggressive cleaning power through multiple reuse cycles.
▸ Raw alluvial garnet → Washing & Desliming → Gravity Separation → Drying → Magnetic Separation → Precision Screening → Final Inspection & Packaging
▸ Each production stage removes impurities and excess fines, producing consistently sharp grains with tight size control for reliable abrasive flow and minimal dust generation.
▸ Particle size distribution testing per ASTM E11 — strict control of 20/40, 30/60, and 80 mesh grades.
▸ Bulk density and specific gravity verification on each production batch.
▸ Moisture content below 0.5% to ensure free-flowing abrasive and prevent nozzle clogging.
▸ Salt/chloride content testing to prevent rust formation on blasted steel surfaces.
▸ Free silica and heavy metal analysis to meet HSE requirements.
| Chemical Specification | |
| Al₂O₃ | 17-25% |
| SiO₂ | 34-40% |
| FeO+Fe₂O₃ | 28-31% |
| MgO | 5-8% |
| MnO | 0-1% |
| TiO₂ | 0-1% |
| CaO | 1-2% |
| Physical Specification | |
| Bulk Density | 2.1-2.4 g/cm³ |
| Specific Gravity | 4.0-4.2 g/cm³ |
| Hardness | 7.5-8.0 Mohs |
| Chloride Content | ≤ 25 ppm (Low Salt) |
| Property | SEPPE Garnet | Typical Slag |
|---|---|---|
| Hardness (Mohs) | 7.5–8.0 | 6.0–7.0 |
| Friability (Breakdown Rate) | Low → Less Dust | High → More Dust |
| Dust Level | Low | Higher |
| Recycle Rate | 3-5 Times | 1-2 Times |
| Free Silica | <1% | Often higher |
| Surface Profile | Consistent | Variable |
| Chloride Content | ≤ 25 ppm | Often higher |
▸ 25 kg PP woven bags and 25 kg paper bags available
▸ 1 MT jumbo bags for bulk supply
▸ OEM private label and custom packaging supported
▸ Reliable container shipment to all major ports worldwide
▸ Garnet's high hardness (7.5–8.0 Mohs) and low friability mean grains resist shattering on impact. Instead of turning into airborne dust like slag or silica sand, garnet particles wear down gradually, producing far fewer respirable fines. Combined with less than 1% free silica, this makes garnet the safer choice for operators and the environment.
▸ Harder grains survive more impact cycles before fracturing. SEPPE garnet can be recycled 3–5 times, compared to 1–2 times for slag abrasives. This means you buy less abrasive, generate less waste, and spend less on disposal — reducing total abrasive cost per square meter by up to 60%.
▸ Typically 3‑5 times depending on blasting pressure and material, thanks to its high toughness and low friability.
▸ No. Our garnet has less than 1% free silica, making it a much safer alternative to silica sand blasting.
▸ 30/60 mesh is the most versatile grade for general steel blasting. Use 20/40 for heavy rust removal and 80 mesh for fine finishing work.
▸ Yes. Garnet is a natural inert mineral, non-toxic, produces low dust, and contains no hazardous substances.
▸ Yes. Free samples and technical documents (TDS/SDS) are available upon request.
Contact SEPPE for free samples, particle size recommendations, OEM packaging, and competitive bulk pricing.
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