Reasons for Prohibiting Wet Sandblasting in Cylinder Interior Cleaning

Q: Why is wet sandblasting strictly prohibited for cleaning gas cylinder interiors?

🎯 The "Choke Point" Risk

While wet sandblasting is highly effective for open surfaces, it becomes a liability when applied to the constrained geometry of a gas cylinder.

• ⚠️ The Clogging Crisis: When moisture mixes with abrasive media inside a cylinder, it creates a thick, viscous slurry. Due to surface tension, this mixture frequently clogs the narrow neck during drainage.
• ⚠️ Extraction Failure: Unlike dry media that flows freely, wet sand becomes trapped. It is nearly impossible to fully evacuate this sludge through the small opening.
• ⚠️ Hidden Corrosion: Residual moisture trapped behind the "plug" triggers rapid internal corrosion, compromising the structural integrity of the cylinder.

The Professional Standard: To ensure safety and a 100% clean finish, we recommend Dry Abrasive Blasting paired with high-efficiency vacuum extraction or Chemical Pickling for internal surface preparation.