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Left: Sandblasting Surface Preparation Guide.
This chart gives a guide to the various types of surface finishes produced with different grades of grit. Note: Although the surface preparation process is referred to as "sand blasting" or "grit blasting", it actually uses steel shot as the abrasive agent. This is fired at the steel work using compressed air. |
| Right: Tyre marks in the grit on the floor of the preparation shed. |
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Left: Inside the preparation shed. |
| Right: Inside the paint shop.
In the foreground is a portable spray paint unit powered by compressed air. The mid ground shows some fabrications which have been painted. In the background is a rack for storing paints. |
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Left: A steel section which has been prepared (grey area) and painted
(cream area). The prepared area has been left unpainted as this member is to be welded into a frame. |