What is the advantage of using the abrasive grit process?

• A. Quickly removes all deposits in one pass
• B. Reduces maintenance cost by 50%
• C. Allows the time interval between cleaning to be longer
• D. Compromises engine performance

Answer: (C)

Abrasive grit blasting is a mechanical cleaning method that propels abrasive particles at surface areas to remove deposits, corrosion, and old coatings while also roughening the surface for subsequent coatings or repairs. The key advantage is that it thoroughly cleans and prepares the surface, which can extend the period before cleaning is needed again. When the surface is brought back to a clean, reconditioned state, the rate at which new deposits accumulate to the level that requires maintenance is reduced, allowing the time interval between cleanings to be longer. It’s not about finishing everything in one pass, and deposits may require more than a single pass in tough cases, but the overall maintenance benefit is the longer interval between cleaning actions.