| Quantity: | |
|---|---|
30/60
SEPPE GARNET
25132000
High-performance natural garnet abrasive specifically engineered for fast rust removal, surface preparation, and industrial cleaning — delivering Sa 2.5+ cleanliness on steel substrates.
▸ 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.
▸ Fast Rust & Scale Removal: Garnet's high density (4.0–4.2 g/cm³) and angular grain shape deliver concentrated impact energy that strips heavy rust, mill scale, and corrosion layers in a single pass, reducing blasting time and abrasive consumption.
▸ Consistent Surface Profile for Coatings: After rust removal, garnet leaves a uniform angular anchor profile (typically 50–100 µm depending on mesh size) that dramatically improves the mechanical bond of primers, epoxies, and anti-corrosion coatings.
▸ Low Chloride, No Flash Rust: With chloride content ≤ 25 ppm, SEPPE garnet meets the strictest marine standards, preventing flash rust on cleaned steel — essential for shipyards, offshore platforms, and bridge maintenance.
▸ Meets Surface Preparation Standards: Our garnet achieves cleanliness levels up to Sa 3 (ISO 8501) on steel substrates, satisfying the highest requirements for protective coating systems in harsh environments.
▸ 20/40 Mesh (Coarse): Aggressive rust and scale removal on heavily corroded steel, ship hulls, and structural steel. Achieves Sa 2.5–Sa 3 cleanliness with a deep anchor profile for thick coatings.
▸ 30/60 Mesh (Medium): The workhorse for general rust removal, maintenance repainting, and surface preparation on bridges, tanks, and pipes. Balances cleaning speed and profile consistency.
▸ 80 Mesh (Fine): Light rust and oxidation removal on precision components, stainless steel, and aluminum. Also suitable for final blending before coating.
▸ 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.
▸ Specifically for rust cleaning, garnet’s combination of sharp angular edges and high bulk density creates an ideal impact pattern that not only removes visible rust but also scours out corrosion from pits and crevices. Its inert chemistry eliminates the risk of surface contamination, so the cleaned metal stays rust-free longer before coating application.
▸ 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.
▸ 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 |
|---|---|---|
| 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
▸ 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.
▸ Yes. Using 20/40 or 30/60 mesh garnet at standard blasting pressures (90–110 psi), you can completely strip heavy rust, mill scale, and old coatings down to white metal (Sa 3) or near-white metal (Sa 2.5) finishes. The high density of garnet ensures rapid cleaning with minimal abrasive breakdown.
Contact SEPPE for product specifications, OEM packaging, bulk pricing, and technical support.
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