Maintaining clean mold cavities is essential for plastic manufacturers to meet modern quality standards. The buildup of residues from resins, mold releases, or labeling processes can cause sticking, surface defects, and tool damage.
Furthermore, manufacturers must manage “flash”—excess material at the mold parting line—which requires removal to ensure product integrity. Traditional manual cleaning with chemicals and hand tools is often slow and ineffective.
Dry ice blasting provides a superior, non-abrasive, and eco-friendly alternative. This process allows for on-site cleaning without water or chemicals, generating no secondary waste. By integrating this method, manufacturers can clean molds faster, extending the time between preventive maintenance cycles. Currently, dry ice blasting is utilized to clean the rear sections of blow molds and entire deep-cavity injection molds, replacing labor-intensive manual scrubbing
Applications where dry ice blasting presents opportunities for improved operations
- Blow molds.
- Compression molds.
- Extrusion molds.
- Injection molds.
- Thermoform molds.
- Plastic injection screw barrels.
- Urethane molds and overspill.
- Plate out.
- De-flashing
Benefits of dry ice blasting overall include:
- Better cleaning.
- No chemicals.
- No water.
- No blasting media.
- No waste disposal
- Minimal Down Time
- On site cleaning
- No abrasion to molds
