What is the difference between sandblasting and dustless blasting?
Dry blasting involves forcing blast media along a 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 blaster uses a combination of compressed air, water and blast media so only a fraction of the amount of blast media is required when compared to dry blasting. The Blaster allows operatives to increase or decrease the amount of water, blast media and air which gives greater control and precision over the entire blast process. The blast media is cushioned by water along the blast hose meaning no heat, friction or dust are produced with this method and no warping of the blasted surface can occur. The presence of water allows the blast media to travel at greater speeds along 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 blasted surface leaving it clean, profiled and contaminant free ensuring the best possible bonding strength can be achieved with future surface coatings. This, therefore, makes the Dustless blasting System an extremely cost-effective and environmentally sound surface preparation method.
What coatings, corrosion and residues can be removed?
Our 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. 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?
Blast media coated in a water jacket by surface tension, increases speed and mass enhancing the force of impact upon the blast surface. Water presence lubricates and eliminates hose and nozzle wear.
Blast media hits the surface, the water jacket continues moving but still holding onto the blast media by surface tension. The water jacket 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