What is the difference between sandblasting and dustless blasting?
Dry blasting involves forcing blast media within the blast hose at high pressure. Large amounts of heat and friction are produced causing the blast media to explode on impact with the blasting surface, making it less effective and causing large clouds of abrasive dust to form in the atmosphere.
This dust makes visibility extremely poor and in some cases stops other works being carried out on site. The blast media remains embedded in the blast surface leaving it uneven and unclean which will affect the quality and longevity of future coatings.
The heat and friction caused by this process can in some cases also warp metal blast surfaces. Our unique dustless sandblasting uses a combination of compressed air, water and media so only a fraction of the amount of media is required when compared to dry sandblasting.
The Blaster allows operatives to increase or decrease the amount of water, blast media or air which gives greater control and precision over the entire blast process.
The blast media is cushioned by water along with the blast hose meaning no heat, friction or dust are produced with this method and no warping of the sandblasted surface can occur.
The presence of water allows the blast media to travel at greater speeds within the hose which means the blast media has a greater effect on impact with the blasted surface.
The water micro-washes the blast media from the sandblasted surface leaving it contaminant-free ensuring the best possible bonding strength can be achieved with surface coatings. This, therefore, makes the Dustless sandblasting System an extremely cost-effective and environmentally sound surface preparation method.
What coatings, corrosion and residues can be removed?
Our dustless sandblasting system can remove the toughest of coatings including bitumen from pipelines yet can be adjusted to clean fragile surfaces including glass, sandstone and critical weld fixtures. We can also remove floor tile adhesive all without damaging polythene enclosures.
From industrial coatings, rust, soot, fire damaged surfaces, flood-damaged surfaces, corrosion, paint and bitumen to permanent and temporary thermoplastic paint, temporary road marking tape, surface dressing emulsions, resin-based paints, anti-skid surfacing and graffiti.
It's more flexible and versatile at removing a wide range of coatings, corrosion and residues from an even wider range of surfaces including metal and non-ferrous metals, glass, stone, brick, wood, fibreglass, concrete and asphalt.
How does dustless blasting work?
The blast media is coated in water and the surface tension increases the speed too enhancing the force of impact upon the surface being blasted. Water presence lubricates and eliminates hose and nozzle wear.
Blast media hits the surface, the water continues moving but still holding onto the blast media by surface tension. The water jacket its self also hits the surface and prevents any grit bounce.
Water jacket snaps around the blast media into the crack under the blast surface and hydrostatically blasts a larger amount of surface coating away. The end result is a profiled surface, feathered edges and the most efficient use of the least amount of blast media and water.
The simple part...
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