Blasting

Blasting

General about sand blasting
All corrosion on the panel must be removed before painting. Sand blasting is a very good way of achieving this especially for deep rust damage.
During sand blasting aluminum oxide is sprayed with a very high pressure onto the damaged area which gives a bare metal area.
The advantages of sand blasting are that areas that are otherwise difficult to access can be reached and that there is a smooth transition between metal and paint. Sand blasted surfaces also provide a good base for both tin filler and painting.
Volvo stocks a complete sand blasting unit (9986410-0), with a number of different nozzles.

Nozzle types






Spot blaster




The gun has seven revolving suction nozzles which have been developed with the help of experienced vehicle painters. The various nozzles seal against all the difficult edges and corners of the car.
The suction nozzles are manufactured of a special rubber which tolerate long blasting times. They prevent dust and dirt from being spread in the premises as well as protecting the paint beside the rust damage.
It is important that only the rust is removed because the original car paint is stronger than any paint repairs.

Note! Sand blasted areas should be sanded with P280 sandpaper and blown with compressed air. This is done to all sand blasted areas.

Note! A blasted surface corrodes very easily. The surface should not be exposed to damp and should be primed as soon as possible.