Machu-Test-Bath

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The Machu test is an accelerated salt spray test.

It's an excellent screening tool for quick evaluation of coating products, specially developped for research and developpment, and customer service.

24 hours test duration is equivalent to 500 hours salt spray.

48 hours test duration is equivalent to 1.000 hours salt spray.

The Machu test gives you the opportunity to evaluate the weathering performance of powder coating system. Pigments fading, film haziness, loss of gloss and film softening after 48-96 hurs test duration.

A simply wat to point out outdoor durability problems.

The JB18 Machu-Test-Unstirred Water Baths is ideal for short-term immersion corrosion tests; a 24-hour test corresponds to approximately 500 hours of conventional salt spray testing.

The test is made in a warm and acidic test solution at a temperature of 37 °C for a duration of 48 h.

The Machu test bath is used for the Qualicoat and QIB certification for accelerated weathering of coated aluminum and steel panels.

The JB 18 Machu-Test-Bath is a temperature-controlled 18 litre bath.

Applications

Environmental, medical, pharmaceutical, practical science demonstration, sample warming, sample preparation, QC materials, sample thawing, sample incubation, media preparation, biotechnology, clinical, petroleum, food Industry, and Industrial Applications

Key Features Specifications Operating conditions Warranty information Your Benefits

Key Features

Temperature range ambient +5ºC to 95ºC operation
Stability (DIN 12876) : ±0.5ºC
Unique Set and Forget® technology - fast heat-up, reliable temperature control
Simple, intuitive controls - quick and easy to set temperature
Practical front panel lock - disables front panel controls preventing unintentional changes
Drain tap on 18 bath
Regulatory approval CE and CSA approved
Temperature setting energy regulation Digital
Equipped with an internal basin and a specimen holder

Test solution Fluid Composition Technical tips

The test solution consists of natrium chloride, acetic acid and hydrogen peroxide. After a test period of 24 h the test solution has to be renewed and the pH value corrected by using hydrogen peroxide.

The Machu test is used to obtain the QUALICOAT label and works according to the requirements of QIB (Quality Community for Industrial Coating).

The Machu-Test-Bath container with top cover is made of Stainless steel - high grade steel, with durable polished finish.

Because of the aggressive test solution a smaller container is integrated to place the test panels inside.

The bottom of the test container is equipped with slots to place the test panels with an angle of 20°.

Qualicoat recommends :

"Before immersion, a cross-cut incision with a width of 1 mm shall be made on the significant surface with a special tool to cut the coating down to the metal. If the dimensions of the sample are smaller than 70 x 70 mm, one scratch will be made lengthwise."

"Accelerated corrosion test, on extruded sections of AA 6060 or AA 6063 only"

The test panels need to be scratched crosswise with a 1 mm cutting tool through the coating to the metal by a scratching tool. We recommend our Scratching Tool according to Sikkens, Model 463.