Detecting Hexavalent Chromium On-Site — Plus 35 Years of MONTI Innovation

Two milestones worth celebrating: a practical advance in on-site chromium safety testing, and 35 years of MONTI-Werkzeuge GmbH pushing the boundaries of mechanical surface preparation. Both reflect the same core commitment — protecting people and infrastructure through better tools and better knowledge.

Why Hexavalent Chromium Matters for Surface Preparation Teams

Hexavalent chromium (CrVI) is a toxic compound found in some legacy anti-corrosion coatings, particularly chromate-based primers widely used on industrial structures before modern regulations came into force. When these coatings are disturbed during surface preparation — grinding, blasting, or bristle blasting — CrVI can become airborne and pose serious health risks.

Identifying the presence of CrVI before starting preparation work is essential for:

• Selecting appropriate respiratory protection (PAPR or supplied-air for CrVI-positive surfaces)
• Implementing correct waste containment and disposal procedures
• Complying with occupational health regulations (REACH, OSHA, local requirements)
• Protecting workers from long-term health consequences

The CrVI Self-Test Method

A practical self-test method for detecting hexavalent chromium on-site allows surface preparation teams to evaluate whether a coating contains CrVI before committing to a full preparation program. The test uses colorimetric reagents that react with CrVI compounds in the coating sample, providing a rapid indication without laboratory analysis.

Key advantages of the on-site approach:

• Results within minutes — no laboratory turnaround time
• Low cost per test — practical for routine pre-job screening
• No specialized equipment required
• Can be performed by trained site personnel

Note: On-site colorimetric testing provides an indication of CrVI presence. Where confirmed CrVI exposure is suspected or where regulatory compliance documentation is required, laboratory analysis remains the gold standard.

35 Years of MONTI: A Look Back at Surface Preparation Innovation

MONTI-Werkzeuge GmbH celebrated its 35th anniversary — three and a half decades of developing and refining mechanical surface preparation tools that have changed how maintenance teams work globally.

From the original wire brush designs to the breakthrough Bristle Blaster® technology that achieves Sa 2½ without abrasive blasting, MONTI has consistently challenged the status quo of surface preparation. Key milestones include:

• Development of the patented Bristle Blaster® rotary wire tool
• Independent validation achieving SSPC-SP10 / Sa 2½ cleanliness and 65–85 µm Rz anchor profile
• ATEX certification for use in explosive atmospheres (Zone 1 and Zone 2)
• Adoption by major oil and gas operators, shipyards, and pipeline contractors globally
• Integration into coating manufacturer specifications and industry standards

Looking Ahead

The next 35 years will be shaped by robotics, automation, and the growing demand for sustainable maintenance practices. MontiPower is already investing in these areas — from robotic bristle blasting platforms to digital documentation and inspection integration.

The foundation, however, remains the same: tools that work, standards that matter, and a team that understands the real conditions of industrial maintenance.

Explore MontiPower's full product range or get in touch to discuss your surface preparation challenges.