:::/Grit Blasting

Grit Blasting

This is used in a multitude of applications both in-house and on-site with a variety of media such as garnet, aluminium oxide, mixed alumina and stainless steel grit. The application is a refined process depending on the surface, the environment and the equipment involved. It can be a mechanical, semi mechanical or manual process with numerous aspects to consider.

Blasting is used to remove build up of paint and corrosion from surfaces; it can also be used to achieve a profile to which coatings can adhere, thus increasing life expectancy making the process more cost effective.

We can work to blasting standards SA 2, SA 2.5 & SA 3 depending on the specification and also carry out a brush off (flash) blast SA 1 to remove light rusting.

The variable types of grit which can be used are;

  • Garnet A hard, durable, low-dusting natural mineral abrasive which is capable of achieving high coverage rates. Typical applications include blasting of stainless steel, steel, special alloys. It is widely used and fine grades may be used in jet cutting applications.
  • Olivine A natural mineral abrasive which contains no free silica, ideally suited to the cleaning of brick and masonry.
  • Chilled Iron A very hard recyclable abrasive which breaks down on impact to expose sharp new cutting edges which promote a rapid cleaning action. It is generally used in closed circuit, air propelled blasting systems at our in-house facilities.
  • Steel High carbon steel shot and grit are used in closed systems which employ impeller wheels to propel the abrasive. Steel grit abrasives are available in a range of hardness’s to suit all surface treatment applications.
  • Alumina A very hard synthetic mineral abrasive which is generally used in small blast cabinets. It is typically used for cleaning non-ferrous components or providing a profile on stainless steels.
  • Vegetable Abrasives Natural organic abrasives such as crushed olive stone or dried corn cob have a gentle cleaning action and are suited to applications where metal removal is not permitted, such as turbine blades or die and mould cleaning.
  • Glass Bead A very versatile material with a large variety of applications including deburring, deflashing, decarbonising, mould and die cleaning.
  • Plastic Abrasive This is used for blast cleaning items where coatings is removed without damaging the surface underneath. Ideally suited for items such as Car Body Work Panels, Aircraft Panels etc.

Sussex Blast Cleaning has a broad experience in all types of blasting and our experienced survey team advise on the correct application to meet the customer requirements

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