TCC Materials® Black Blast
TCC Materials® Black Blast (BOM #106908) are abrasive blasting crystals that can be used for rust/paint removal and cleaning stone and brick. Additionally, the crystals hard, sharp, evenly-sized crystals make them ideal to frost/etch glass. Black Blast crystals work with all blasting equipment, are safe to use, and have a 1.5-2.0 mil anchor profile.
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Frequently Asked Questions
What is Black Blast?
TCC Black Blast are hard, sharp, angular black slag granules used for dry abrasive blasting applications such as removing rust and paint, cleaning stone and brick, etching glass, carving, or exposing aggregates.
How is Black Blast used?
TCC Black Blast is typically used in dry abrasive blasting applications. A pressurized vessel contains the abrasive Black Blast and meters it into the compressed air stream propelling a stream of abrasive material. Wet blasting is done by injecting the Black Blast into a pressurized water stream or creating a slurry of abrasive and water.
Where would Black Blast be used?
TCC Black Blast is great for light rust or paint removal on metal surfaces of cars and tire rims. It is also used for cleaning stone and brick, and for glass frosting.
Where does Black Blast come from?
TCC Black Blast is a byproduct of the slag residue form local coal-burning power plant boilers. You could think if it as recycled ash from the boilers. Black Blast is fresh water washed before being packaged for sale.
Is Black Blast flammable since it is a coal combustion by-product?
TCC Black Blast is non-flammable. It is similar to glass, yet harder than crushed glass since it is created at very high temperatures.
What is the specific grade of Black Blast?
TCC Black Blast is a blend of the two finest grades of black slag. It is approximately 60% of the Fine 30-60 grade (¾-1½ mils), and 40% of the Extra Fine 40-80 (¾ mils) grade. The anchor profile is 1½-2 mil.
Do I have to have special equipment to use Black Blast?
TCC Black Blast works with all standard blasting equipment.
What is the recommended minimum nozzle size for Black Blast?
We recommend a minimum 1/8” (3 mm) nozzle when blasting with Black Blast.
How do I clean up spilled, excess, or used blasting material?
TCC Black Blast is best cleaned up by using a vacuum or a broom.
What are the proper disposal methods for my used Black Blast?
Any construction landfill is EPA approved for disposal of TCC Black Blast. You will want to place the used material in a plastic bag and tie it closed, or container with a lid to dispose. This same method of disposal is approved when removing lead paint with TCC Black Blast.
Can I re-use Black Blast?
No, use TCC Black Blast once and properly dispose. Since the materials being abraded will be mixed with the TCC Black Blast, the resulting mix will require proper disposal and cannot be reused for other projects.
Does Black Blast contain silica, should I be concerned with silica fumes when using?
TCC Black Blast is considered to be silica free and chemically inert, it is less than 1% free silica. A dust suppresant is automatically included in our TCC Black Blast making it low-dusting and safer than silica sand based blasting materials.
What is the hardness of Black Blast?
TCC Black Blast has a hardness greater than 6 on the MOHS scale (causes significant scratching on a glass microscope slide). The hard, sharp, angular shapes of TCC Black Blast contribute to make it cut faster and more efficiently.
What is the bulk density of Black Blast?
The bulk density of TCC Black Blast is 90 to 100 pounds per cubic foot. The consistent uniform weight and gradation keeps equipment from clogging.
How do I know what grade I need?
The smaller the grade number, the coarser the granule. TCC Black Blast is recommended for abrasive removal of light rust, light coatings and light mill scale. It produces a slight profile & is used for a white blast.
Are other grit sizes available?
Yes, there are Fine 20-40 (2.0—3.5 mils = 3.16” nozzle) and Medium 12-40 (3.0—4.5 mils = 5/16” nozzle). These grits are purchased on a special-order basis in full pallets quantities through TCC Materials.
My plastic bags of Black Blast got wet, can I still use the product?
If you are using the TCC Black Blast for dry abrasive blasting applications, the product must be dry to flow properly through the blasting equipment.
How does Black Blast compare to other abrasive blasting products?
TCC Black Blast is harder than crushed auto glass and it is less expensive than garnet or aluminum oxide. Additionally, Black Blast is safer than blasting with silica sand.
Is Black Blast metallic?
TCC Black Blast is non-metallic.
Are Beryllium levels within OSHA Guidelines?
Yes, the beryllium level of TCC Black Blast falls within current OSHA requirements. TCC Black Blast passes TCLP analysis (40 CFR 261.24) for low heavy metals.
It looks a lot like the black granules on my roofing shingles, is it the same?
Yes, 80% of the asphalt shingles used in the United States use this same type of material.
**Product production varies by plant. Please contact your salesperson for product availability in your location**