Review how SEPPE controls particle size, moisture, soluble contamination and finished-product consistency—then evaluate SGA garnet under your own operating conditions before a bulk purchase.
A reliable raw material source provides the foundation, but source alone cannot guarantee a consistent finished abrasive. Finished quality also depends on separation, washing, drying, screening, sampling, documentation and protection during shipment.
For waterjet garnet, quality control focuses on grading, excessive fines, oversized particles and moisture. These controls support stable abrasive feeding; final cutting performance still depends on the machine, orifice, focusing tube, material and operating settings.
For blasting garnet, grading must be reviewed together with moisture, soluble contamination and the required surface result. Surface cleanliness and profile should be confirmed on the actual substrate under the project’s operating conditions.
The relevant test items and acceptance limits depend on the grade, application, purchase specification and order requirements. A typical product value should not be read as an order-specific batch result.
| Control Item | Why It Matters | Waterjet | Blasting | Evidence |
|---|---|---|---|---|
| Particle-size distribution | Shows how material is distributed across the specified sieve range. | Primary | Primary | TDS / sieve analysis |
| Oversized particles | May disturb feeding or be unsuitable for restricted passages. | Primary | Relevant | Upper-sieve result |
| Excessive fines | Can affect useful cutting action, dust, housekeeping and flow. | Primary | Primary | Lower-sieve / pan result |
| Moisture | Excess moisture can contribute to caking and unstable flow. | Primary | Primary | Product / batch record |
| Bulk density | Supports feed-rate, packing and consumption comparisons. | Relevant | Relevant | TDS / test report |
| Conductivity / chloride | Used where soluble contamination is limited by the purchase or project specification. | When required | Important for coated steel | Method-specific report |
| Mineral composition / free silica | Free crystalline silica must not be confused with total SiO₂ in chemical composition. | Relevant | Relevant | TDS / laboratory report |
| Packing and loading | Protects inspected material against moisture, damage and identification errors. | Primary | Primary | Packing / loading record |
Open a grade below to review the data currently published in the corresponding SEPPE technical data sheet. These are typical product data; request order-specific documentation when evaluating a purchase.
84% of the published retained mass is distributed across mesh 60, 70 and 90. Cumulative retained reaches 94% at mesh 90 and 98% at mesh 100.
| Mesh | Nominal Size | Discrete Retained | Cumulative Retained |
|---|---|---|---|
| #40 | 425 µm | 0% | 0% |
| #45 | 355 µm | 0% | 0% |
| #50 | 300 µm | 10% | 10% |
| #60 | 250 µm | 30% | 40% |
| #70 | 212 µm | 28% | 68% |
| #90 | 170 µm | 26% | 94% |
| #100 | 150 µm | 4% | 98% |
| Pan | <150 µm | 2% | 100% |
The principal retained fractions are 28% at 0.380 mm and 68% at 0.270 mm. Cumulative retained reaches 96% at 0.270 mm.
| Sieve Opening | Discrete Retained | Cumulative Retained |
|---|---|---|
| 0.850 mm | 0.00% | 0.00% |
| 0.550 mm | 0.00% | 0.00% |
| 0.380 mm | 28.00% | 28.00% |
| 0.270 mm | 68.00% | 96.00% |
| 0.250 mm | 3.80% | 99.80% |
| 0.212 mm | 0.20% | 100.00% |
The largest individual fractions are 33.8% at ASTM #30 and 24.0% at #35. Cumulative retained reaches 82.8% at #35 and 98.1% at #40.
| Sieve Opening | ASTM Sieve | Published Range | Discrete Retained | Cumulative Retained |
|---|---|---|---|---|
| 0.850 mm | #20 | 0–10% | 4.70% | 4.70% |
| 0.710 mm | #25 | >85% combined | 20.30% | 25.00% |
| 0.600 mm | #30 | 33.80% | 58.80% | |
| 0.500 mm | #35 | 24.00% | 82.80% | |
| 0.425 mm | #40 | 15.30% | 98.10% | |
| <0.425 mm | Below #40 | 0–5% | 1.90% | 100.00% |
How to use these values: confirm that both suppliers use comparable sieve openings, units and reporting formats. Typical TDS data should not be presented as a guarantee for a specific shipment.
Finished-product consistency depends on control across the processing sequence. Each stage has a different purpose: reducing unwanted material, controlling moisture, defining the grading and checking the finished product before packing.
Particle condition, mineral composition and visible unwanted material are reviewed before raw garnet enters the main processing sequence.
Magnetic separation uses differences in mineral response to help reduce selected unwanted minerals before further processing.
Washing removes clay, loose fines and surface material before drying and grading. Cleaner material supports more stable downstream processing.
Moisture is reduced before screening to support grading accuracy, free-flowing material and more reliable packing and storage.
Screens classify dried garnet into the intended grade while controlling oversized grains and excessive fines.
Representative finished-product samples are checked against the applicable product and order requirements before release for packing.
The material should be held for review rather than released on the strength of a general TDS. Only describe isolation, reprocessing, retesting or retained-sample procedures here if those steps are part of SEPPE’s documented operating practice.
Use the TDS to review published product data. For an order evaluation, request available batch or shipment documentation and confirm which values are typical, guaranteed or batch-specific.
Published particle-size distribution and typical physical information for the general waterjet grade.
Download Current TDSPublished grading and typical data for general industrial blasting and surface preparation.
Download Current TDSPublished grading and typical data for coarser blasting and heavier coating-removal requirements.
Download Current TDSA test standard explains how a property is measured. The applicable product, project or purchase specification determines the acceptance requirement.
A documented evaluation helps you compare SEPPE garnet with your current abrasive using the same equipment, material and acceptance criteria. The purpose is to establish application fit before regular supply—not to promise a universal result from laboratory data alone.
Tell us the application, equipment, current abrasive, operating conditions and the result you need to verify.
SEPPE reviews grade fit, available documents, suggested sample quantity and applicable shipping terms.
Use the same equipment, material and agreed acceptance criteria wherever practical, then record the agreed metrics.
Compare the recorded results, discuss any parameter adjustment and decide whether a pilot order is justified.
The exact package depends on the grade and the information available for the proposed sample or order.
Waterjet and blasting evaluations use different scorecards.
Abrasive flow rate, feed interruptions, cutting speed at equal quality, edge quality, kerf or taper and abrasive use per accepted part.
Cleaning rate, consumption per m², surface profile in µm or mil, visual cleanliness, dust or visibility and reuse where applicable.
Complete the separate Request a Trial Review form directly below this section. Include your application, current abrasive, equipment setup and the result you need to verify.
Clarify what published data can show, what requires batch documentation and what should be confirmed on the customer’s own equipment.
No. The table presents typical data from the current product TDS. Confirm the applicable specification and request available order-specific documentation when evaluating a shipment.
No. Particle-size distribution must be matched to the equipment, material and required result. A finer or coarser distribution should not be described as universally superior without a comparable operating trial.
The quantity depends on the application, feed rate, trial duration and shipping feasibility. A small laboratory sample may not be enough to evaluate cutting output, consumption or longer-term equipment wear.
Usually not. Wear assessment requires a longer and properly controlled pilot period. A short sample trial is better suited to feed behavior, cutting or cleaning output and immediate quality observations.
The garnet grade influences the result, but surface condition, pressure, nozzle, technique and other operating variables also matter. The required cleanliness and profile should be confirmed on a representative test area.
SEPPE and the customer review the recorded results, confirm product and order requirements, and determine whether a pilot order or regular bulk supply is appropriate.
Send the required grade, application, quantity and destination. SEPPE can provide available technical documents or review whether a controlled evaluation is practical.
Quick help for SGA garnet grade selection, waterjet cutting, sandblasting, packaging and quotation.
