Heavy-Duty Surface Preparation
Coarse Crushed Glass Blasting Media, 10/20 Mesh
Zafa 10/20 is our most aggressive grade, built for removing heavy coatings, mill scale and rust from structural steel and leaving a deep anchor profile for high-build coatings. It's made from solar panel and CRT sheet glass recycled in Lawrenceville, Georgia, so it contains no free crystalline silica and none of the labels, caps or debris found in bottle-glass media. A cleaner, Southeast-made alternative to coarse coal slag.
Product Specifications and Quality Checks
Key Features: 10/20 Mesh
Mesh Grade
10/20 mesh coarse-grade crushed glass abrasive.
Material Source
Made from recovered solar panel cover glass and non-leaded CRT panel glass.
Clean Feedstock
Uses solar panel cover glass and non-leaded CRT panel glass, not bottle cullet.
Lot-Tested Quality
RCRA metals screening and crystalline-silica XRD.
Technical Specifications
Coarse: 10/20 Mesh
| Specification | Coarse 10/20 |
|---|---|
| Particle size range | Average particle size 1.14 mm (ASTM C136, KTA-Tator 66077859) |
| Typical surface profile | 5.2 mil average on steel (ASTM D4417 Method C) |
| Glass source | Solar panel cover glass and non-leaded CRT panel glass, Lawrenceville, GA |
| Crystalline silica (XRD) | <0.1% by NIOSH 7500 (SSPC-AB 1 Class A) |
| Amorphous by XRD | 99.9–100% |
| Metals | TCLP lead 0.11 mg/L; EPA limit 5.0 |
| Foreign matter / loss on ignition | Organics (LOI) 0.002%; no oil detected; moisture 0.005% |
| Specific gravity | 2.8 |
| Hardness | Mohs 6 minimum |
| Blasting method | Dry or wet |
| Packaging | 50 lb bags, FIBC bulk bags, 42,000 lb truckload |
Coarse-Grade Abrasive Applications
Applications: 10/20 Mesh
Blasting concrete releases silica from the concrete itself; follow your site's dust controls.
Bridges and structural steel
Strips thick, multi-coat paint systems before recoating.
Tanks and pipelines
Exterior blasting where the coating spec calls for a deep anchor profile.
Heavy equipment and railcars
Removes heavy rust, scale and old coatings.
Concrete and masonry
Removes coatings and profiles floors or decks for overlays.
Pricing & Packaging
10/20 Pricing
| Packaging | Quantity | Price per lb | Price per ton |
|---|---|---|---|
| FIBC bulk bags | 1–3 | $0.145 | $290 |
| FIBC bulk bags | 4 or more | $0.125 | $250 |
| Bulk truckload | 42,000 lb | $0.105 | $210 |
| 50 lb bags | 1–3 pallets | $0.160 | $320 |
| 50 lb bags | 4 or more pallets | $0.140 | $280 |
| 50 lb bags | Truckload, 14+ pallets | $0.120 | $240 |
Prices are for pickup at Lawrenceville, GA. Ton = 2,000 lb. Pickup only; orders are usually ready 2–3 business days after payment.
Need 10/20 mesh for your next project?
Request a quote or sample and share your j quantity and surface-preparation requirements.
Review safety and technical data sheets, see pricing, or compare crushed glass with coal slag.
Switching from coal slag
Switching from coarse coal slag?
Crushed glass is lighter than coal slag, so a pound covers more surface, and it leaves a bright, clean finish that's easy to inspect. Start at your usual nozzle pressure and adjust.
See the full comparison and cost calculator.
Same for every grade
From solar panels to blasting media, all in Georgia
- End-of-life solar panels and CRT displays arrive at CompuPoint USA’s R2v3- and RIOS-certified facility in Lawrenceville, Georgia.
- Solar cover glass and non-leaded CRT panel glass are separated. Leaded CRT funnel glass is kept out and goes only to licensed smelters.
- Zafa Glass crushes, screens and lot-tests the glass for RCRA metals, then bags it as blasting media.
Try Zafa on your next job
Tell us your grade and quantity. We’ll confirm pricing within 2 business days, and your order is usually ready for pickup in Lawrenceville in 2–3 business days. Free sample bags are available for pickup too.