Almandine garnet abrasive for waterjet cutting and blasting
DEXPRO supplies Egyptian almandine garnet in calibrated grain sizes for waterjet cutting, abrasive blasting and filtration. Free silica is under 1%, which makes it a lower-dust alternative to silica sand for blasting.
Garnet specification
| Parameter | Specification |
|---|---|
| Mineral type | Almandine (Fe3Al2Si3O12) |
| Grain sizes | 20/40 · 30/60 · 80 mesh |
| Al2O3 | 20–22% |
| SiO2 (combined) | 35–38% |
| FeO | 28–32% |
| Free silica | <1% |
| Hardness (Mohs) | 7.0–7.5 |
| Density | 3.9–4.2 g/cm³ |
| Recyclability in blasting | 3–5 cycles |
SiO2 above is combined in the garnet crystal. Free (crystalline) silica is the figure that matters for worker exposure, and it is below 1%.
Which grade for which job
- 80 mesh: the standard waterjet cutting grade for metals, stone, glass and composites
- 30/60: general abrasive blasting and surface preparation
- 20/40: coarse blasting for heavy steel, ship hulls and pipelines
- Filtration media: dense layer in multi-media water filters
Commercial terms
| Term | Detail |
|---|---|
| HS code | 2513.20 (natural abrasives) |
| Key markets | USA · Europe · Gulf |
| FIBC jumbo bags | 1,250 kg or 1,500 kg · PP outer, PE inner liner |
| Bulk in 20′ container | Approx. 27 MT with liner bag |
| Loading ports | Alexandria · Damietta |
| Incoterms | FOB · CFR · CIF |
| Inspection | Control Union pre-shipment inspection (SGS or TÜV Rheinland on request) |
Documents supplied with each shipment
- Certificate of analysis for the lot
- Independent pre-shipment inspection report (weight, sampling, bag condition)
- Certificate of origin, packing list, commercial invoice, bill of lading
- Photo record of loading per container
Frequently asked questions
What mesh sizes are available?
20/40, 30/60 and 80 mesh. 80 mesh is the usual waterjet grade; 30/60 and 20/40 are blasting grades.
How much free silica does the garnet contain?
Less than 1% free crystalline silica, so it produces far less hazardous dust than silica sand blasting media.
Can garnet be recycled?
In abrasive blasting it can typically be reused 3–5 times, depending on the equipment and the job.
Which HS code applies?
HS 2513.20, natural abrasives including garnet.
Request a quotation
Tell us the grade, quantity, destination port and Incoterm. We reply with a quotation, the current specification sheet and sample availability.
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