Types of abrasives


Abrasives are subdivided into two large families:

 

Disposable abrasives


The abrasives that belong to this group are low-cost abrasives that usually, for this reason, are not reused, or abrasives used for the first time that become so pulverized that they are no longer usable.

Abrasives in this category are silica sand, calcium carbonate, quartz, steel shot used in open work sites on all types of articles (iron, steel, reinforced steel, wood, etc.) to obtain the texture that is usually necessary for a better application for coatings that will be later applied, in addition to cleaning the article
These types of abrasives are used with traditional free jet sandblasters. The SABIX, SABIX PLUS, COMPLETE BLASTER (all versions), and MODULAR models, if equipped with humidifier kits, can eliminate the problem tied to the dust generated from sandblasting by injecting water into the air/abrasive mixture.

SODIUM BICARBONATE
is used and thrown away when it is necessary to clean without creating irritation, and therefore without texturizing the treated material as its main characterization is that it is more gentle on many materials (marble, iron, steel, glass, etc.).  Thanks to this characteristic, sodium bicarbonate is often used in order to completely eliminate the dust generated during the following operations:



BICARBONATE SODIUM is available on the market in two sizes: large and fine granule.
Large granule sodium bicarbonate costs more, but it can be propelled with a Modular 60 - 280 L tank sandblaster, with a Sabix and 60/120/200 Water blaster.
These machines allow for a more precise regulation of the product, and if needed, when equipped with a humidifier kitcompletely eliminate dust by the addition of water in the air/abrasive mix.

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Recoverable abrasives



Abrasives that are recoverable and therefore reusable include the following:


These abrasives are available from us or on the market in different granular sizes, expressed in some cases as mesh and others in others as microns, according to the type and manufacturer.
Reusable abrasives are usually much more expensive compared to disposable abrasives, which are therefore only convenient while they are being used.  Recycling the abrasive implies the use of a system that cleans or selects it in a way that when it is blasted again on a surface being treated, it still has effect and creates similar results every time.

Reusing a recoverable abrasive, without selecting and cleaning it, means always blasting a larger amount of impurities, decreasing effect, increasing the amount of dust while blasting, and eventually having to completely eliminate the used abrasive, losing the benefits from recovering it as well as the reduced waste cleanup that, in the case of using a selection and cleaning system, leaves the used abrasive and the erosion from the surface.

 

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