Bristle Blasting

Removing paint from stone with a bristle blaster

bristle blast, MBX, yorkshire, lincolnshire, nottinghamshire, derbyshire, uk

One of the challenges we have faced over the years is to find a technique to safely remove the 'stubborn' patches of paint from a surface after we have used pressure washing, chemical stripping, sand jetting or even dry ice blasting. In 2013 we discovered that a hand tool we have had in our possession for a number of years - bought to clean up rust and 'missed bits' on blast cleaned metal (it is sold as a paint shop surface preparation tool) can be used on stone and brick as well. It has the advantage that the cleaning face is much smaller than with a sand jet, and can therefore be much more controlled. It is however, still important to know when to stop!

 

Bristle blasting paint from a previously chemically stripped sandstone pillar, May 2013

bristle blast, MBX, yorkshire, lincolnshire, nottinghamshire, derbyshire, uk

bristle blasting of the pillars - before (above) and after (below) even with this technique we couldn't get all the paint off - but the sandstone was too soft to risk any other kind of blasting; in this case the paint had been previously softened with the chemical stripper.

In the photographs below, we followed up dry ice blasting of paintwork from stone in a Listed Grade I property in East Yorkshire with the bristle blaster to try to get some of the lime based filler out of the stonework. - Lime based fillers and paints are always very difficult to remove with chemical strippers

bristle blast, MBX, yorkshire, lincolnshire, nottinghamshire, derbyshire, uk

bristle blast, MBX, yorkshire, lincolnshire, nottinghamshire, derbyshire, uk

 

Key Benefits

  • Flexible, many surfaces and contaminants can be dealt with quickly and easily.
  • Very localised blast area (which also does mean that it is a slow process)
  • lower mess than abrasive blasting, so it can be used indoors.
  • Suitable surface profile generation for subsequent treatments, such as Zinga cold galvanising.
  • Longer time-scales before flash rusting appears