The Blasting Process
The wet abrasive blasting process is very similar to that of dry media blasting, although the abrasive media is propelled toward the surface of the metal using a ’slurry’ combined with high pressure air. The wet blasting process can vary slightly depending on the media grade used. Allard Vapour Blasting Services offer clients various grades of media options to suit virtually every application. Do not hesitate to contact us for more information or to get a quote.
- First, removal of all items which can be either unbolted or unclipped, followed by masking and plugging of any holes on the part prior to cleaning.
- The abrasive particles are propelled towards the part in a stream of high pressure slurry, using either a water injection nozzle (WIN), or halo nozzle (nozzle size dependant on application).
- As the abrasive media impacts the hard surface of the metal, the force of the impact blasts away the surface coating.
- The part is dried to prevent corrosion from the water. This MUST be done prior to adding another treatment or protective coating to aid the prevention of ‘flash rusting’.
Types of Wet Abrasive Blasting
Wet Bead Blasting
For a smooth peened finish, glass beads similar to those used in the dry bead blasting process are propelled against the metal surface.
Wet Soda Blasting
Soda is a softer, single abrasive generally used in instances where it is not necessary to recycle the slurry. This process is often used for special applications and for larger parts such as car and ship bodies.
Wet Aluminium Oxide Blasting
Generally used to clean, polish and create an anti-slip surface on metal.