FRENNL
Plastics & industrial molding, Belgium & Luxembourg

Dry ice blasting for injection molds

Resin build-up, mold release residue, carbon deposits: dry ice blasting cleans your injection molds in place, between cycles, without disassembly or solvent. Zero scratching, immediate return to production.

No disassembly No solvent Zero scratching Immediate return to production
The problem

A dirty mold costs you money

  • Resin and release agent build-up degrades part quality and finish over cycles
  • Manual cleaning requires full disassembly: hours of downtime per intervention
  • Solvents and abrasive brushes risk scratching polished cavities
  • Carbon deposits accumulate in vents, causing gassing defects
  • Waiting too long between cleanings shortens mold lifespan
The dry ice blasting solution

Clean mold, back in production fast

  • Cleaning in place, on the press, between two production cycles
  • No disassembly, no solvent, no abrasive contact with polished surfaces
  • Removes resin, release agent and carbon deposits from vents and fine details
  • Zero moisture, zero risk of corrosion on tool steel
  • Mold ready to run immediately after the intervention
Applications

Mold types we clean

01

Plastic injection molds

Precision cleaning of cavities, cores and ejector systems for thermoplastic injection.

02

Rubber & elastomer molds

Removal of vulcanisation residue and mold release build-up on rubber compression and injection molds.

03

Die-casting molds

Cleaning of aluminium and zinc die-casting tools, removal of metal deposits and release agent.

04

Blow molding tools

Cleaning of cavities and pinch-off areas for bottle and container blow molding.

05

Composite & RTM molds

Gentle cleaning of composite tooling surfaces without damaging gel coat or fine texturing.

Why dry ice blasting

The advantages for your production

Preserves polished surfaces

Non-abrasive process, no risk of scratching or altering dimensions, even on high-gloss polished cavities.

Cleaning in place

Performed directly on the press, between two cycles, with no need to remove the mold from the machine.

Access to vents & fine detail

Reaches narrow vents, undercuts and fine texturing that manual cleaning cannot properly access.

Extends mold lifespan

Regular non-abrasive cleaning reduces wear compared to manual scraping or aggressive solvents.

Maintenance schedule

How often should molds be cleaned?

High-cadence molds

Weekly to bi-weekly cleaning for molds running continuously in multi-shift production.

Standard production

Monthly cleaning for molds in regular, single-shift production runs.

Between material changes

Systematic cleaning when switching resin colour or compound to avoid cross-contamination.

Before long storage

Full cleaning before a mold is stored, to prevent corrosion and residue hardening over time.

Frequently asked questions

Dry ice blasting for injection molds

Yes, that is the main advantage. The intervention is carried out in place, between two production cycles, with no need to remove the mold from the machine.
No if pressure is correctly adjusted. Dry ice sublimates on contact with no abrasive action. Icetec systematically tests on a discreet area before treating polished cavities.
Depending on size and contamination, a standard mold is cleaned in 20 to 60 minutes, far faster than a full manual disassembly and cleaning cycle.
Yes. Dry ice blasting is effective at removing vulcanisation residue and release agent build-up from rubber and elastomer tooling without damaging the mold surface.
Yes. Icetec can set up a recurring maintenance plan aligned with your production cadence, with preferential rates for regular contracts.

Request a free quote

Describe your mold type, material and production cadence. An Icetec expert will assess feasibility and get back to you, no obligation.

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