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Using a high efficiency abrasive reduces the dust levels as you blast, which increases your visibility and is better for your health and for the environment. And you will keep your neighbours happier. But there are more reasons to use the correct abrasive...
...no - you are not just clearing the air. Using a high efficiency product means you use less abrasive. Low consumption of abrasive in turn means you buy less, then you load less, you vacuum up less and consequently you dispose of less. All very relevant and significant cost saving benefits. A less efficient coarser abrasive requires you to open the valves up more to get the abrasive to flow through and this causes you to use more abrasive each hour.
Or view the consumption of abrasive chart from the '16 Ways' book here.
Abrasive consumption will vary with each job depending on the structure and condition of the substrate. You should however, always ask yourself: "How much abrasive should I be using each hour?" “How can I save?”
Although the superior abrasives like GMA garnet may cost more per tonne, it normally costs a lot less per square metre to blast. Another great advantage that a superior abrasive gives you is a faster blast. Each grain carries a given amount energy. With an efficient abrasive like Blast-One Garnet the blast stream can carry four times the quantity of abrasive grains, each carrying their tremendous kinetic cleaning power. With more hits to the surface on any given area it means you move the nozzle faster and on many projects finish the job much sooner! That makes sense.
Yes - You finish the blasting sooner, you clean up quicker and sooner and therefore you can get the coating on sooner.
Or view the blasting speed on mill scale chart from the '16 Ways' book here.
We must also mention the increase in the quality of the blast on the substrate. Because the abrasive is finer it can penetrate easily into any small crevices, cracks and undulations. This, of course, results in a better blast finish and ensures that the overall surface is freer of paint and rust.
Here's the comparison between Blast-One Garnet and an imported grade abrasive:
The smaller grains scour out deep into the pits and leave a cleaner surface, faster. With an imported coarser abrasive it is very hard to clean out the pits without using a lot more abrasive. Blast-One Garnet is proven world-wide to be just the right size mix to clean off the heavy rust and to also clean out the deepest pits.
The superior garnet abrasive leaves no particles embedded into the surface allowing for maximum adhesion strength and a longer lasting coating.
See the animated clip to understand better the efficient abrasive comparison here.
Laboratory and field testing has found that efficient abrasives such as Australian Premium Garnet recycles better than Indian or Crushed Garnet (even though Indian or Crushed Garnet may be initially larger in size).
In summary, every way you look at it you win when you use a superior abrasive that is suited to your job.