Silicon Carbide Grit Blast Media

Quick Answer: Silicon Carbide (SiC) Grit Blast Media is an extremely hard, sharp, and fast-cutting blasting abrasive. It produces clean anchor profiles with less media consumption and reduced contamination vs. softer minerals. Typical blasting grades range from F24–F220; choose coarser for heavy coating removal and finer for finishing and precision etching.

Factory-controlled FEPA sizing, low Fe2O3 options, recyclable angular grains. Ideal for steel prep, stainless/non-ferrous finishing, and stone/glass etching.

Why Silicon Carbide for Blasting

  • Ultra-hard & sharp: Mohs ~9.2–9.5; cuts fast and leaves crisp, uniform profiles.
  • Lower contamination risk: Low Fe2O3 options help minimize embedment on stainless and non-ferrous substrates.
  • Efficient & recyclable: Angular grains maintain cutting edges; fewer passes to reach profile.
  • Consistent sizing: FEPA F-series control for predictable performance across lots.

Select the base material by application:

  • Black SiC — cost-effective heavy cutting & surface prep
  • Green SiC — higher purity, sharper finish for critical substrates

Product Showcase

Silicon Carbide F24 Grit
F24 Grit

Coarse blasting grade for heavy coating removal.

Silicon Carbide F36 Grit
F36 Grit

Ideal for steel scale removal and rough surface prep.

Silicon Carbide F60 Grit
F60 Grit

Balanced performance for general blasting applications.

Silicon Carbide F80 Grit
F80 Grit

Medium grit for versatile use across metals.

Silicon Carbide F100 Grit
F100 Grit

Consistent finish on stainless and alloy steels.

Silicon Carbide F120 Grit
F120 Grit

Fine grit for non-ferrous and precision blasting.

Silicon Carbide F150 Grit
F150 Grit

Controlled profile, good for coatings & primers.

Silicon Carbide F220 Grit
F220 Grit

Fine blasting for etching, lettering, glass & stone.

How to Select the Right Grit

Use Case Typical Grit (FEPA F) Notes
Heavy coating / scale removal (steel) F24–F36 High productivity; deeper anchor profile.
General surface prep before coating F36–F60 Balanced cut vs. finish; common for primers.
Non-ferrous / stainless finishing F60–F120 Reduced embedment; cleaner finish.
Precision etching / stone & glass F120–F220 Fine profile; lettering/ornamental detail.
Request a Quote See F36 Grade

Comparison: Silicon Carbide vs Aluminum Oxide vs Garnet

Media Hardness (approx.) Cutting Speed Recyclability Contamination Risk Typical Use
Silicon Carbide Mohs 9.2–9.5 Very high High Low (low Fe2O3 options) Fast removal, precise profiles, critical finishes
Aluminum Oxide Mohs ~9 High High Moderate General purpose blasting, cost-effective
Garnet Mohs ~7.5–8 Moderate Moderate Low–moderate Waterjet & mild blasting, economical

Typical Properties & Recommended Parameters

Property Black SiC (typ.) Green SiC (typ.)
SiC Content ≥ 98.0% ≥ 99.0%
Fe2O3 ≤ 0.20% ≤ 0.10%
Bulk Density 1.45–1.60 g/cm³ 1.45–1.60 g/cm³
Mohs Hardness ~9.2–9.3 ~9.3–9.5
Particle Shape Angular Angular / sharper micro-fracture
Grit Nozzle Pressure Distance
F24–F36 8–10 mm 0.6–0.8 MPa (90–120 psi) 150–250 mm
F36–F60 7–9 mm 0.55–0.75 MPa (80–110 psi) 150–250 mm
F80–F120 6–7 mm 0.5–0.7 MPa (75–100 psi) 150–250 mm
F150–F220 5–6 mm 0.45–0.6 MPa (65–90 psi) 150–250 mm
* Parameters vary by equipment, substrate, and target profile—validate with a small trial.

Industrial Applications

Steel Surface Prep

Coating/rust/scale removal on carbon steel and castings; clean, repeatable anchor profiles for primers and heavy-duty coatings.

Stainless & Non-ferrous Finishing

Low-embedment finishes on stainless, aluminum, titanium with low-Fe2O3 grades and optimized parameters.

Stone/Glass Etching

Fine grits (F120–F220) for crisp lettering/ornamental detail on stone, glass, and ceramic surfaces.

Explore More Applications

Frequently Asked Questions

Quick guidance on grit selection, process parameters, contamination control, and recycling for silicon carbide blasting.

For heavy coating/scale removal on steel, start with F24–F36. For general prep, use F36–F60. For stainless/non-ferrous finishing, pick F60–F120. For fine etching (glass/stone), use F120–F220.

Yes. SiC is ultra-hard (Mohs ~9.2–9.5) and angular, so it can be reused multiple times. Actual recycles depend on pressure, substrate hardness, contamination, and recovery system efficiency. Many users report significantly fewer media purchases than with softer minerals.

With low-Fe2O3 grades, correct angles, and appropriate pressure/distance, embedment risk is minimized. Always verify with post-blast cleanliness checks and adhesion tests for critical coatings.

As a guideline: F24–F36 → 8–10 mm nozzle, 0.6–0.8 MPa (90–120 psi); F36–F60 → 7–9 mm, 0.55–0.75 MPa (80–110 psi); F80–F120 → 6–7 mm, 0.5–0.7 MPa (75–100 psi); F150–F220 → 5–6 mm, 0.45–0.6 MPa (65–90 psi). Validate on small trials.

Black SiC is cost-effective and suitable for heavy cutting and general prep. Green SiC offers higher purity and sharper micro-fracture for critical finishes and sensitive alloys, where cleanliness and low contamination are paramount.

Standard: 25 kg multi-wall bags. Bulk: 1000 kg jumbo bags. Custom labels and palletization are available for export shipments.

Yes. We can share COA (Certificate of Analysis), size distribution, and Fe2O3 data per lot. Third-party inspection is available on request.

Common workflows target F36–F60 for primer adhesion on steel. Fine topcoat finishes often use F80–F120. Always align with coating manufacturer specs and verify with profile measurement (e.g., replica tape).
Still have questions? Contact us

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Tell us your grit, quantity, application, and delivery term (FOB/CIF). We’ll send a tailored quote with inspection data and consistent FEPA sizing.

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