Crushed Glass Abrasives
Corrocoat USA is now the exclusive distributor for crushed glass abrasive for all of Northeast Florida and South Georgia.
Crushed glass abrasive is economical, environmentally inert and available in a variety of grit sizes and can achieve virtually all required angular, anchor profiles. Costs savings benefits are derived from increased visibility for the blaster, increased hardness for greater impact, reduced compressed air requirements, reduced grit consumption rates and a 10-15% increase in productivity, as compared to blasting with coal slag abrasive.
TRU Abrasive is made by Strategic Materials from 100% recycled glass. It is an inert abrasive that is recommended by NIOSH and OSHA as a substitute for slag and mineral abrasives. It contains no heavy metals, no free silica, and is therefore great for blasting projects where it is impractical to recover lost or spilled spent abrasive.
Benefits of Glass Blast Abrasive:
1) Efficiently Cleans steel, aluminum, wood, concrete, stone, and fiberglass substrates.
2) Glass Blast will leave a clean, bright finish to metal surfaces allowing for greater visibility for the blaster and a surface that is much easier to inspect relative to darker materials, which leave behind a dark, grey tint created by their respective impregnated residue.
3) Excellent for achieving an aggressive, angular profile for coatings, ranging in sizes of 0.5– 4.5 mils profile depth.
4) Glass delivers very low particle embedment (less than 2%) which produces a whiter (SP-10) finish to the
5) Lighter weight than most abrasives. Contractors report back that they use at least 25% less abrasive
(some say up to 50% less) when using glass as compared to mineral slags.
6) SAFE – no free silica, is chemically inert and non-toxic.
7) Environmentally friendly – as it is inert, it can be used to open air blast around navigable water. CARB approved at select plants for outdoor blasting as well as listed on the QPL.
8) Great for thick, softer coatings because it is a lighter weight abrasive. It does not “bounce” back off the
9) Sustainable / Green blasting solution. It is 100% recycled post-consumer bottle glass.
Blast Abrasive Selection Guide:
#10/40: Coarse: This grade will remove heavy rust, thick coatings, and barnacles. Great for concrete, structural steel, heavy tanks.
MIL Profile: 3.0-4.2 on steel surfaces
#20/40 Medium Coarse: This blend of grades is great for light paint and rust removal in shipyards, on bridges and tanks. Great for all general blasting needs.
MIL Profile: 2.5-3.5+ on steel surfaces.
#40/70 Medium: Used on stainless steel for wet/dry blasting of light mil scale, maintenance work, graffiti and restoration. Excellent for log home blasting and auto paint stripping (we recommend a PSI at about 45-50 when blasting thinner metal such as for auto restoration), as well as other light duty work.
MIL Profile: 1.0 to 2.0 up to 3+ in vapor blasting on steel surfaces.
#70/100: Fine: Great on softer metals and substrates. Excellent for etching and degreasing on aluminum, car parts and wood. Works as a good substitute for soda blasting.
MIL Profile: 0.5 to 1.0 on steel surfaces.
Tips for Blasting With Glass Abrasive:
A) You do NOT want a lot of abrasive in the air stream. The grains collide with themselves, lose energy, and hit your surface with less impact.
B) Your goal is to not be able to see the abrasive in the air stream. If you can see it, meter back, as you have too much abrasive going through your hose.
C) Start by purging your line so it is abrasive free. Then slowly open the feed until you can see the abrasive in the air stream. Then slowly close the feed until you can no longer see the abrasive in the air stream. This is what you want.
D) If you have too little abrasive in the air stream, you will likely hear a high pitched whistling sound. Start over and this time repeat the process slower so you can see when the abrasive is no longer visible in the air stream. Be Stingy! You will achieve better results with a lean supply.
E) Move your nozzle faster than you normally would. Glass abrasive blasts very fast, very clean. You will be surprised how light and sharp it is, and how much feathering you get with it.
F) Blasting hard mil scale will require using a finer grit size, as it cuts more like a knife than a hammer. This is why it is great for softer, elastomeric coatings that often bounce back heavier abrasives.
G) Blast at a 90 or 100 psi, or less. Higher pressure will be counterproductive due to how light glass abrasive is. You will simply shatter the glass rather than allow it to work for you.
H) You can use a finer size than you would normally use.
A description of the sizes and packaging that we now stock at our Jacksonville, Florida location is included in the following table:
Sold in 50 LB BAGS
50 lb Paper Bags Lined with Plastic; 40 bags per pallet (2,000 lbs)
Sold in 3,000 Lbs Super Sacks