What is the difference between walnut shell blasting and dry ice cleaning?
2 Answers
Differences between walnut shell blasting and dry ice cleaning: 1. Walnut shell blasting: Walnut shell blasting for engine carbon deposits: It can only clean the surface of the engine, not the inside of the engine cylinders, and walnut shells can easily clog the intake valves. Walnut shells have a certain abrasive property, which can cause wear to the engine and affect its performance. 2. Dry ice cleaning: No technical requirements for cleaning personnel. It saves cleaning costs because the purchase cost of dry ice is low, and the power-consuming air compressor also saves on electricity bills. There is no need for secondary processing costs. Using dry ice to clean the engine can extend its service life. The difference between dry ice cleaning and walnut shell blasting is that dry ice is relatively softer.
I've always been quite interested in car cleaning methods. Walnut shell blasting and dry ice cleaning are fundamentally different. Walnut shell blasting involves processing walnut shells into fine sand and spraying them onto component surfaces to physically scrape off carbon deposits and oil stains. It's more common and cost-effective, but often leaves residue stuck in crevices, requiring extra time for cleanup. Dry ice cleaning is much more advanced, using ultra-low-temperature carbon dioxide pellets that instantly sublime and explode upon impact with dirt, peeling it away without leaving any residue or damaging parts. Simply put, walnut shell blasting is like sanding with sandpaper, while dry ice cleaning is like using a magic cleaning pen—the former is affordable but troublesome, the latter quick but expensive. If you frequently clean engines, walnut shell blasting is suitable for routine maintenance, while dry ice is better for precision or stubborn dirt removal. The key is to choose based on budget and needs, not just be swayed by advertising hype.
