TQC Sheen Machu Test Bath

Developed by TQC Sheen, our paint testing specialist brand, the TQC Sheen Machu Test Bath is designed for coating inspection and quality control in certified laboratories.  

Machu test corrosion analysis  

The Machu test serves as a rapid corrosion test for aluminum and steel. This immersion test for corrosion gives you the opportunity to evaluate the weathering performance of powder coating systems, pigments fading, film haziness or loss of gloss and film. 

In contrast to the comparatively time consuming salt spray test (acetic acid), the machu test gives you reliable corrosion test results after a short test period. 

The Machu test is fast and delivers results that typically correlate well with the results of a salt spray corrosion test. So it’s often used as a quick test before a more comprehensive assessment is launched. 

During a Machu test your test panel samples are cut down to the metal, scribed and then exposed to a test solution containing natrium chloride, acetic acid and hydrogen peroxide for 48 hours at 37°C. You can then determine the corrosion protection by assessing the infiltration at the scribe. 

Real world environmental conditions

To give a picture of how effectively our immersion test for corrosion recreates the natural weathering process, consider this: a 24 hour test duration is equivalent to 500 hours in a salt spray chamber and a 48 hour test equates to 1,000 hours. 

Machu test immersion corrosion kit  

When you purchase a Machu Test Bath from TQC Sheen you get the 11 liter Machu Test Bath itself, a SST top lid with perforated base plate and a four liter plastic container. 

Corrosion test safety assurance  

Safety features of the TQC Sheen Machu Test Bath include the over temperature and over current protector and the sensor control technology. 

Quality Machu test performance – as standard!  

The TQC Sheen Machu Test Bath was designed to support testing to Qualicoat and QIB-Spezifikationen international standards.  

Corrosion analysis product portfolio 

Across the Industrial Physics portfolio we have plenty of devices that are designed to recreate realistic, real world testing conditions.  

Our C&W Salt Spray Cabinets were designed to test both components and coated test panels across the whole spectrum of industry. These corrosion analysis test cabinets are reliable, easy to operate and have a robust construction. 

The PosiTest range of pull off adhesion testers swiftly and accurately measure the force required to pull a specified test diameter of coating away from a substrate using hydraulic pressure. 

Immerse yourself in our corrosion test knowledge

We’re always pleased to share the knowledge we’ve gained over decades of making machines to test metal samples, parts and components. 

In the knowledgebase section of our website you’ll find blogs about subjects related to the product on offer on this page. For example, this one explores how to assess car paint quality. Or perhaps you’d consider this blog that asks manufacturers whether they should switch to water based paints of more interest.