White metal blast to near white metal blast Some general guidance in the form of Table 1 is helpful to gain a starting point. The first question to answer is what blast pressure is required to prepare the surface effectively. How to Determine the Correct Blast Pressure for Your Application Being able to fine tune the blast pressure is of immense benefit when removing strongly adhered coatings from delicate substrates because the substrate can be damaged when the coating is removed. Wooden materials (e.g., decks) can be cleaned by vapor abrasive blast cleaning if the blast pressure is low enough to prevent damaging the wood fibers. The material makeup of the substrate and the substrate’s condition should also be considered. Conversely, a lower pressure is sufficient for easy-to-remove coatings or loose dirt. Tough, thick coatings, corrosion, or strongly adhered surface contaminants require a higher blast pressure. Read: What is Wet/Vapor Abrasive Blasting Why Blast Pressure MattersĮach job is unique and requires forethought to achieve the best results.
0 Comments
Leave a Reply. |