TQC Sheen Machu Scratching Tool

Precision Cutting for Reliable Corrosion Testing

The TQC Sheen Machu Scratching Tool is designed to prepare coated panels for the Machu test, a widely used accelerated corrosion testing method. Supplied with a 1 mm width cutter, the tool creates a controlled cut through the coating layer to the metal substrate, facilitating effective exposure and compliance with ISO 17872.

This item is also included as an optional extra within the Qualicoat kit.

Two Models to Suit Your Needs

Choose from two high-quality variants to match your testing requirements:

• Basic (CC2000 model): Features a self-aligning knife bracket to ensure a perpendicular, consistent cut through the coating. Ideal for coatings of approximately 80 μm thickness.
• Professional (CC3000 model): Offers adjustable cutting depth and dual ball bearings to maintain precise contact with the substrate surface, delivering highly reproducible results (max. depth 750 μm).

Why Choose the Machu Scratching Tool?

A key requirement in Qualicoat and QIB accredited labs, the Machu Scratching Tool is designed for accurate preparation of coated substrates before corrosion testing. The ergonomic grip, replaceable cutter, and rugged construction make it a trusted choice in quality control and coating performance evaluation.

How to Use the Machu Scratching Tool

1. Select the appropriate model (Basic or Professional).
2. Place the cutter on the coated test panel.
3. Draw the tool to create a perpendicular scratch down to the metal.
4. Proceed with the Machu test using standardized methods (ISO 17872).

Built for Quality and Repeatability

With options for adjustable depth and mechanical guidance via ball bearings, the tool minimizes variability between tests, ensuring reliable comparisons and compliance with international testing standards.

Reliable and Easy to Use

Built for precision and ease of use, the TQC Sheen Machu Scratching Tool is a dependable instrument for preparing coated substrates for corrosion testing. Whether you choose the Basic or Professional version, both models deliver consistent, clean cuts to meet international testing standards. With its ergonomic grip and durable construction, it’s trusted by labs worldwide for reliable and repeatable results.

Explore More Corrosion Testing Tools

Looking to expand your test setup? The Machu Scratching Tool is also available as an optional component within the TQC Sheen Qualicoat Powder Coating Test Kit, offering a complete solution for Qualicoat-compliant laboratories. For conducting the full Machu corrosion test, pair it with the TQC Sheen Machu Test Bath, designed for consistent and controlled exposure conditions. You may also be interested in the TQC Sheen CC2000 Cross Cut Adhesion Test Kit—a key tool for evaluating coating adhesion as part of your broader quality control process.

Let’s Talk Corrosion Testing

At Industrial Physics, we understand the importance of accurate and reproducible corrosion testing. With decades of expertise in surface preparation and coatings analysis, we’re here to support your work with in-depth resources, testing insights, and industry knowledge. To deepen your understanding of why proper surface preparation matters, take a look at our FAQ on how corrosion resistance testing improves paint performance or explore the article on cyclic corrosion testing and what it’s used for.

Visit our website to explore corrosion testing methods, access technical documentation, or contact our specialists for guidance on choosing the right tools for your application.