SaleNational Blast Supply
NBS Crushed Glass — 50 lb Bag (40/70 Mesh)
$24.99 $34.99

National Blast Supply
MPN: NBS-CS3060-50
Coal slag is the most cost-effective expendable abrasive for large-scale outdoor blasting operations. A byproduct of coal-fired power plants, this angular media delivers excellent cutting speed at a fraction of the cost of garnet or aluminum oxide. Ideal for jobs where media recovery is impractical — bridges, tanks, ships, and structural steel in the field.
| Spec | Value |
|---|---|
| Material | Calcium Silicate (Coal Slag) |
| Shape | Angular |
| Mesh Size | 30/60 (250–600 microns) |
| Hardness | 6.0–7.0 Mohs |
| Bag Weight | 50 lbs (22.7 kg) |
| Recyclability | Single use (expendable) |
| Free Silica | <0.1% |
| Specific Gravity | 2.7 |
Structural steel preparation (SSPC-SP5/SP6/SP10), bridge maintenance, tank lining prep, ship hull blasting, pipeline coating removal, and any large-scale outdoor job where low media cost is critical.
Portable pressure blasters (primary use), direct pressure blast cabinets. Not recommended for siphon systems. All nozzle types compatible — tungsten carbide recommended for longevity.
National Blast Supply offers free shipping on all orders over $2,500 within the contiguous United States.
3-5 business days handling time
5-7 business days shipping via freight carrier
8-10 business days from time of order
Depending on seasonality and availability, shipping times may vary. You will receive tracking information once your order has shipped. For questions about shipping to your area, please contact us at (307) 832-5565 or sales@nationalblastsupply.com.
All products sold by National Blast Supply carry the full manufacturer warranty. Warranty terms vary by manufacturer and product. Please contact us for specific warranty details on this item.
If you receive a defective or damaged product, please contact us within 48 hours of delivery at (307) 832-5565 or sales@nationalblastsupply.com. We will work with the manufacturer to resolve the issue promptly.
Returns of unused, undamaged products may be accepted within 30 days of delivery. A restocking fee may apply. Please contact us before returning any item. For full details, see our Refund & Return Policy.
Our equipment specialists are happy to help you determine if this product is right for your application.
Monday - Friday, 8:00 AM - 5:00 PM MST
We respond within 24-48 hours on business days
We can also provide custom quotes for bulk orders or special configurations.
Coal slag is the most cost-effective expendable abrasive for large-scale outdoor blasting operations. A byproduct of coal-fired power plants, this angular media delivers excellent cutting speed at a fraction of the cost of garnet or aluminum oxide. Ideal for jobs where media recovery is impractical — bridges, tanks, ships, and structural steel in the field.
| Spec | Value |
|---|---|
| Material | Calcium Silicate (Coal Slag) |
| Shape | Angular |
| Mesh Size | 30/60 (250–600 microns) |
| Hardness | 6.0–7.0 Mohs |
| Bag Weight | 50 lbs (22.7 kg) |
| Recyclability | Single use (expendable) |
| Free Silica | <0.1% |
| Specific Gravity | 2.7 |
Structural steel preparation (SSPC-SP5/SP6/SP10), bridge maintenance, tank lining prep, ship hull blasting, pipeline coating removal, and any large-scale outdoor job where low media cost is critical.
Portable pressure blasters (primary use), direct pressure blast cabinets. Not recommended for siphon systems. All nozzle types compatible — tungsten carbide recommended for longevity.
National Blast Supply offers free shipping on all orders over $2,500 within the contiguous United States.
3-5 business days handling time
5-7 business days via freight carrier
8-10 business days from order
Shipping times may vary. Contact us at (307) 832-5565 or sales@nationalblastsupply.com.
All products carry the full manufacturer warranty. Contact us for specific warranty details.
Contact us within 48 hours of delivery at (307) 832-5565.
Returns accepted within 30 days. Restocking fee may apply. See our Refund Policy.
Our equipment specialists are happy to help.
Mon - Fri, 8AM - 5PM MST
Response within 24-48 hours
Not sure which attachment is right for your machine? Our comprehensive buying guide walks you through the key factors to consider.
Read the GuideLearn about our commitment to quality and customer service.
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Contact UsFree shipping on orders over $2,500. Learn about our delivery process.
View PolicyFull manufacturer warranty on all products. Learn about our return process.
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