Water and Sandblasting

Water blasting is another method of pressure cleaning, but suited more towards heavy-duty cleaning and removal processes. Water blasting uses are generally commercial. Its strengths are apparent when maintenance painting (on a surface) has been prolonged and the surface has started to peel and blister or the paint has simply failed due to incorrect sealing or paint applications.

This cleaning method incorporates a 3500 – 5000 psi-pressure washer with a few special attachments. Method (1) is a turbo tip which rotates a stream of water through the nozzle creating a more concentrated cleaning action and thus will strip the surface of most flaking rust, the surface may then be painted with a surface tolerant paint or further cleaned with blasting or hydro blasting sand. Method (2) is to add silica sand to the water at the tip of the applicator nozzle.