Anyone who has lived in Australia knows that the humidity can climb depending on the season. That’s okay if you are hanging out on the beach with a long, cold drink in hand, but humidity is not good if you want to avoid substrate surface corrosion during and immediately after abrasive blasting.
It is impossible to remove water from air by reducing relative humidity (RH) with heated air. In fact, heating air will enable it to hold more water before saturation. That is, no water is actually removed via a heating method. Dehumidification, on the other hand, effectively reduces the moisture content of the air.
Using a dehumidifier to introduce dehumidified air into your sandblasting booth will significantly reduce RH, which will, in turn, decrease the risk of ‘flash rusting’. Reducing humidity to below 50% RH will also allow you to ‘hold the blast’ on uncoated steel for days. Obviously the need to immediately clean and paint after every blast can be reduced with the use of a dehumidifier, which means you can keep blasting for longer and meet production targets more quickly.
Humiscope, Australia Wide, has the answer to your sandblasting corrosion dilemma. Humiscope has dehumidifiers for commercial and industrial applications available for rental or purchase. If you are new to the benefits of dehumidification, get in touch with one of our friendly staff members. They are happy to offer help and advice on the right dehumidifier for your project.