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- Armex Blasting Media is a premium baking soda/Sodium Bicarbonate
- Originally designed in 1984 to restore the Statute of Liberty
- Manufactured by Church and Dwight
- Predominately used to remove stuff off delicate substrates
- Sold by the pallet (pallet minimum)
- Abrasive cannot be ordered online at this time
Amex does not flow as well as more commonly used sandblasting media. This is because of its low weight. Low weight media require a higher angled slope to cause them to fall by gravity compared to heavy media such as sandblasting sand. Armex sandblasting media grains also tend to “pack in” and cling to each other, which also hinders free-flow of the material. To overcome this, a modified blast pot helps improve flow. Modifications to a standard blast pot that helps Armex flow are…
- A vibrator, pneumatically driven, usually attached to a leg of the blast pot, to shake the media into movement.
- A steeper cone in the base. This increases the angle of the slope of the media.
- Differential pressure controls. These allow the pressure in the blast pot to be higher than the pressure in the metering valve. This forces the abrasive through into the air stream to help overcome flow issues. Normally, differential pressure is avoided in a blast pot. This is because with heavier abrasives, such as sandblasting sand, it causes wear in the valve and blast pot. As Armex is softer, metering valve and blast pot wear are minimized with differential pressure.