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Method & Safety

The Science
Behind Our Work

Three physical forces. Five certified steps. Zero residues. Discover why dry ice blasting is the most ingenious cleaning technique in industry.

Schedule a Free Demo View The Physics
How It Works

Three Physical Principles,
Together Unbeatable

Dry ice blasting combines three simultaneous physical forces that together deliver a cleaning effect that no other method can match.

01

Thermal Shock

CO2 pellets have a temperature of -78.5 °C. On contact with the contaminated surface, an extreme temperature shock occurs. Dirt and coatings shrink faster than the substrate, causing the adhesion forces to break and the contamination to release — without damaging the base material.

-78,5 °C
Temperature CO2 pellet
02

Sublimation Expansion

On impact, the dry ice sublimates directly from solid to gas — without a liquid phase. This causes a volume expansion by a factor of 700. The resulting shock wave acts like a micro-explosion under the dirt layer, releasing and removing it from the inside out.

×700
Volume expansion during sublimation
03

Kinetic Impact

Dry ice pellets are accelerated by compressed air to high speeds of 150 to 300 m/s. The kinetic energy on impact is proportional to the mass and the square of the speed. This removes hardened coatings, oils and baked-on residues from any surface.

300 m/s
Maximum pellet speed
Our Work Process

From First Contact
To Cleaning Certificate

Every project starts with a thorough analysis. This way we always deliver the optimal result — without surprises, with complete documentation.

1

Site Visit & Analysis

A CRYOSTRAL technician visits your site and inventories the surfaces to be cleaned, the nature of the contamination and the operational limitations (safety zone, downtime windows, ATEX zones). Based on this, we prepare a tailor-made quote.

FreeWithin 48uBenelux coverage
2

Risk Analysis & Safety Plan

Before every intervention, we prepare a detailed safety plan: CO2 concentration measurement, ventilation schedule, personal protective equipment (PPE) and coordination with your safety coordinator. All work falls under our VCA certification.

VCA-certifiedATEX-awareRI&E-compliant
3

Preparation & Shielding

Our team prepares the work zone: shielding adjacent installations, placing the CO2 supply, connecting the compressed air compressor and calibrating the Cold Jet applicator for pressure, pellet size and feed rate tailored to your specific application.

Cold Jet EquipmentVariable pellet size0,3 – 16 kg/hour
4

Cleaning & Quality Control

The actual cleaning is carried out by certified operators. During the work, a second technician continuously checks the cleaning quality and documents progress with before/after photography. Deviations are corrected immediately.

Photo documentationFour-eyes principleISO 9001 compliant
5

Report & Cleaning Certificate

After completion, you receive a complete cleaning report within 24 hours: before/after photo documentation, the parameters used, the finished surfaces, the CO2 consumption registration and an official cleaning certificate that is auditproof for HACCP, ISO and internal quality systems.

Delivered within 24hHACCP-auditproofDigital + PDF
Safety Protocols

Safety Is Not
A Side Issue

CO2 cleaning is inherently safe when applied correctly. We follow the strictest protocols in the sector and are externally audited every year.

Personal Protective Equipment

  • ✓Cryogenic gloves (min. -100 °C protection)
  • ✓Face shield or safety glasses (EN 166 standard)
  • ✓Hearing protection — noise level 85-105 dB(A)
  • ✓Safety shoes (S3 class)
  • ✓CO2 detection badge mandatory in confined spaces

Ventilation & CO2 Management

  • ✓Minimum air exchange: 10 volumes/hour in work zone
  • ✓Continuous CO2 monitoring: alarm at >5,000 ppm
  • ✓Evacuation plan mandatory in confined spaces
  • ✓Emergency fan always present on site
  • ✓Coordination with customer health and safety coordinator

ATEX & Explosion Safety

  • ✓ATEX Zone 1 & 2 certified equipment available
  • ✓Anti-static hoses and grounding mandatory
  • ✓Spark-free compressed air installations
  • ✓Separate risk analysis for every ATEX zone
  • ✓Operators trained in ATEX awareness

Zero Residue & Product Safety

  • ✓Dry ice sublimates completely: no wet cleaning
  • ✓No chemical or biological contamination
  • ✓Safe around electrical installations (voltage ≤690 V)
  • ✓No abrasive damage to substrate
  • ✓HACCP-compliant for the food industry
Comparison

Dry Ice Blasting vs.
Traditional Methods

An objective comparison shows why more and more industrial companies are switching to dry ice cleaning as the standard cleaning method.

Criterion Dry ice blasting High-pressure cleaning Chemical cleaning Sandblasting
Machine can stay onYesNoSometimesNo
No chemical residueYesYesNoYes
No water / wet wasteYesNoNoYes
Safe for electronicsYesNoLimitedNo
No substrate damageYesSometimesYesNo
HACCP-compliantYesLimitedNoNo
Minimal waste volumeYesNoNoNo
Cleaning certificate standardAlwaysOn requestOn requestOn request
Our Equipment

Cold Jet — The Gold
Standard in CO2 Cleaning

CRYOSTRAL works exclusively with Cold Jet equipment, the world market leader in dry ice blasting installations. Our systems are calibrated for maximum efficiency and precision.

Cold Jet dry ice machine equipment CRYOSTRAL
Cold Jet Select 60
Primary system — high production
Cold Jet Partner ATEX Option Micro-Cleaning

Technical Specifications

CO2 throughput0,3 – 16 kg/hour
Working pressure4 – 14 bar (controllable)
Pellet diameter0,3 mm – 3 mm
Pellet temperature-78,5 °C
Blasting speed150 – 300 m/s
Noise level85 – 105 dB(A)
Compressed air requirement1,5 – 4,5 m³/min
ATEX versionZone 1 & 2 available
Food Industry230 V / 50 Hz
Request Technical Datasheet
Certifications

Every Project Secured
By External Audit

Our certifications are not paper — they are the basis of every project and give our customers the certainty that every job is carried out according to the highest standards.

VCA

VCA**

Safety, Health and Environment Checklist Contractors. Two stars: the highest VCA class for companies with operators who work independently at high-risk companies.

HACCP

HACCP-compliant

Hazard Analysis Critical Control Points. Dry ice cleaning is the recommended method for the food industry because of the zero-residue guarantee. Fully auditproof.

CJ

Cold Jet Certified

Certified partner and operator of Cold Jet dry ice blasting systems. Our technicians are trained by Cold Jet in the use, maintenance and safety of all systems.

ISO

ISO 9001

Quality management system compliant with ISO 9001. Every cleaning project is documented and audited through our standardised quality procedures.

Frequently Asked Questions

Your Technical
Questions
Answered

Do you have a specific question about our technology or safety approach? Our experts are ready for you.

Ask Your Question
No. Dry ice pellets sublimate completely — there is no water drainage or chemical residue. With the correct shielding of open parts, the method is completely safe for adjacent installations and electrical components.
Yes, provided our ATEX Zone 1/2 certified equipment is used. These systems are fully anti-static and are operated exclusively by ATEX-awareness certified operators after a specific risk analysis.
This varies greatly depending on the nature of the contamination, the surface and the required degree of cleanliness. During our site visit, we make an accurate estimate. On average, consumption is between 5 and 60 kg CO2 per working hour.
Extremely temperature-sensitive substrates (certain thermoplastics, thin rubbers) and surfaces with loose coatings may be unsuitable. In case of doubt, we always carry out a test setup on a non-critical surface area.
For emergency interventions, we are usually on site within 24 hours in Benelux. Planned projects are scheduled during your downtime window. Contact +32 473 22 17 18 for emergencies.
The report contains: before/after photo documentation per cleaning section, the equipment and parameters used, the cleaning duration, names of the certified operators and the official cleaning certificate — fully auditproof for external inspections.
Free Demo

See the Result With
Your Own Eyes

We carry out a free test setup at your site. You see the effect in real time, without obligations.

Schedule a Site Visit+32 473 22 17 18
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