Frequently Asked Questions
Choose a topic below. Answers reflect Zafa’s client-approved material claims; request current laboratory reports and product specifications before relying on measured values.
Product & Materials
It's recycled glass that has been crushed and screened into sharp, angular grains of set sizes, used in place of sand or slag for abrasive blasting. It removes paint, rust and mill scale and leaves a profile for new coatings.
From the front cover glass of end-of-life solar panels and the front panel glass of CRT TVs and monitors, recovered at CompuPoint USA's R2v3- and RIOS-certified facility in Lawrenceville, Georgia. Leaded CRT funnel glass is never used.
No labels, caps, paper or food residue. Most glass media is made from bottles, which arrive mixed with those. Ours is made from industrial sheet glass.
10/20 for thick coatings, mill scale and a deep profile on structural steel. 20/40 for general paint and rust removal. 40/80 for thin sheet metal, aluminum, stainless and graffiti. -80 for etching, engraving and cabinet work. Call us if you're unsure.
Yes. All grades work dry or wet, in standard pressure pots, suction systems, slurry and wet blasting equipment, and blast cabinets. Wet blasting is the best way to control dust.
Crushed glass breaks down as it's used and is usually treated as a single-use media.
Safety & Quality Testing
No free crystalline silica. Glass is amorphous, not quartz, and our media tests at under 0.1% by NIOSH 7500 (SSPC-AB 1 Class A); 99.9–100% amorphous by X-ray diffraction.
Crystalline silica is the cause of silicosis and is regulated by OSHA.
Zafa media adds no crystalline silica to your job and is lot-tested for lead and the other RCRA metals. Any abrasive blasting still creates dust, and the surface you're blasting can be the bigger hazard: concrete releases crystalline silica and old paint may contain lead. Follow your respiratory protection program and the guidance in our Safety Data Sheet.
Below EPA TCLP limits for all eight RCRA metals.
Keep bags and FIBC bulk bags dry and covered, off the ground on pallets. Damp media flows poorly through blast equipment.
Comparing Media
Both are free of crystalline silica in their structure. Crushed glass is lighter, leaves a brighter finish that's easier to inspect, and is lot-tested for metals with results published; coal slag carries trace metals from the coal it came from. See the full comparison and a cost calculator on our crushed glass vs coal slag page.
Silica sand is typically 90% or more crystalline silica and is restricted or banned for blasting by many owners and specifiers. Crushed glass gives similar cutting action without the crystalline silica.
Ordering and Pickup
No. All orders are picked up at our facility at 111 Fredrix Alley NE, Lawrenceville, GA 30046.
Usually 2–3 business days after we receive payment. We'll let you know when it's ready.
| Bagged pallet | 50 × 50 lb bags = 2,500 lb of media; 2,600 lb gross pallet weight |
|---|---|
| FIBC bulk bags | 2,500 lb or 3,000 lb |
| Truckload | 42,000 lb |
| Weight conversion | 1 ton = 2,000 lb |
Yes. Request a free sample bag through the quote form and pick it up in Lawrenceville.
Use the quote form, call +1 678-670-7599 or email info@zafaglass.com. We reply within two business day.
Documents, Pricing & Orders
Request the current Technical Data Sheet (TDS), Safety Data Sheet (SDS), and where available, the relevant lot-test/XRD and metals test summaries for your grade. Visit Safety & Technical Data Sheets.
Zafa lists bagged, palletized, super-sack and truckload purchase options, subject to current grade availability and order requirements. Ask sales to confirm bag and super-sack weights, pallet counts and minimum quantities for your order. View pricing.
Pricing depends on mesh grade, packaging format, order tier and shipment destination. Use the published pricing tables and calculator as a material-price reference, and request a confirmed quote for freight, taxes, pickup arrangements and final availability.
Delivery & Support
Ask the Zafa team about will-call pickup at 111 Fredrix Alley NE, Lawrenceville, GA 30046. Pickup eligibility, loading arrangements, hours and lead time must be confirmed before travel.
Yes, submit a sample request with your contact details, job-site ZIP code, intended application and preferred grade. Sample eligibility, quantity and shipping arrangements are confirmed by the sales team. Request a quote or sample.
Keep the media covered and dry, protect the packaging from damage, follow the product’s current SDS and assess lifting, dust and housekeeping hazards. During blasting, use appropriate ventilation, containment, respiratory protection and other controls determined by the worksite assessment.
Call +1 678-670-7599 or email info@zafaglass.com. Include your substrate, coating, desired finish, equipment, quantity and job-site ZIP code so the team can discuss a suitable grade and quotation.
Still Have a Question?
Tell us about your project, substrate, desired profile, blasting equipment, location and order quantity. We can discuss grades, documentation, sample requests and pricing without assuming the same abrasive is right for every job.