What is fine blasting?
Fine blasting refers to a refined blasting technique applied to delicate objects.
Characteristics of fine blasting
The three characteristics of fine blasting (or precision blasting) are:
- Low blasting pressure
The right blasting pressure is actually determined by the surface type and degree of contamination. To prevent surface damage, fine blasting often requires no more than 1 to 3 bar of blasting pressure, significantly less than for traditional blasting. - Fine abrasive
The choice of abrasive is also determined by the surface type and degree of contamination. In general, it can be said that it should be a fine abrasive that - like fine sandpaper - gives the smoothest results. Commonly used are abrasive grain sizes ranging from 0.05 to 0.3 mm (270 - 50 mesh). - Exact, constant metering
Precise abrasive metering is essential to prevent overblasting and achieve a uniform blasting result. A metering valve with precise adjustment options and an optimised flow rate ensure constant abrasive flow.
For small or large projects
Whether for small or large projects, fine blasting is ideal for various applications, such as wood blasting, monument cleaning and fire damage restioration. For small objects, a small nozzle and compressor can be used. For larger projects, a higher production rate can be achieved by deploying nozzles with larger diameters, while maintaining fine results!
Wet or dry blasting
Due to the precise abrasive dosage and low(er) blasting pressure, fine blasting already causes significantly less dust than traditional blasting. When water is also added to the air and abrasive stream, dust production is minimised.
Discover Gritco machines
Gritco has been developing wet and dry fine blasting equipment for 34 years and is happy to make all its knowledge and experience available to put together the right method + machine line for your specific blasting application.
