Blast cleaning is an alternative method of cleaning in many applications. It relies mainly on mechanical forces and requires the delivery of some blasting agent on a surface at a high velocity. Selection of blasting material depends largely on the type of surface that requires cleaning, and includes wire clippings, ice, baking soda, silicon carbide, and sand among others.
Blast Cleaning Techniques
Dry Ice Blasting
This new cleaning method uses CO2 pellets (dry ice). Upon making contact with the surface, the dry ice pellets sublimate directly from solid to vapor, making way for a clean, dry and erosion free surface. It is a non-abrasive method and can remove contaminants quickly without damaging the machine parts such as panels, switches, wiring, etc. Dry ice blasting does not require drying time. Some of the applications in which dry ice blasting finds its most common use include adhesive removal, dyes cleaning, fire restoration, and mold removal, along with many others.
Also known as abrasive blasting, this method of cleaning refers to propelling abrasive material against a surface. It involves projection of stream at a high-speed through a jet nozzle with the help of pressurized air, and is good enough to leave the surface clean, dry, and ready for applying new coating. This method is for cleaning processes that focus on removing coatings, old paintings, debris, rusts, grime, and several other contaminants from the surfaces. The high-speed projection of abrasives leads to creation of fine dust particles, which can cause silicosis, a dreaded lung disease. Due to this harmful side effect, UK has banned the use of most common types of sands for abrasive blasting.
Different techniques of blast cleaning are preferred for the restoration purpose depending on the applications. Overall, these methods find their use in a range of applications such as to clean the dirt from a JC Eco Blasting surface or to remove burrs left behind during the processing of a material. The blasting methods are also useful in the finishing of a material, patio cleaning, making an age-old stonework look afresh via grit blasting, and so on. Some other applications include aircraft cleaning, graffiti removal, cleaning of metalwork, light fittings, etc., using blast cabinets, removing corrosion, varnish deposits, etc., from automobiles, and more.
Equipment for blast cleaning
Manufacturers come up with their own version of blast cleaning equipment with several advanced features to lure the customers. Some of these include:
Dry Ice Blasting (DIB) System: ensures environmentally sustainable cleaning and offers multiple advantages:
- Best for transport cooling and surface preparation
- Non-toxic and non-destructive
- Quicker and environmentally friendly cleaning process