SERVICES: LIQUID AND POWDER LINE PRETREATMENT PROCESS

In order to meet the demands of the commercial construction industry, Spectrum Metal Finishing uses some of the largest pretreatment tanks in the industry.  This means we can pre-treat and coat unique and oversize components that our competitors could not do.  Our immersion techniques ensure that every recessed area is properly cleaned, which allows the coating to permanently bond to the part.  This method is greatly preferred over inline spray washing, which may miss certain recessed areas and causes poor adhesion.

Prior to the pretreatment process the material is loaded onto specially designed buggies.     Then, depending on the type of material, the components are immersed in a 5-stage chrome phosphate pretreatment system to prepare them for paint application.

COLOR SELECTION

An architect will probably view dozens of laboratory-produced color chip samples.  The sample chips are representative of  laboratory  prepared panels.  However, the same conditions are impossible to duplicate on an actual production line using complex paint equipment.  This is why it is important for architects to give their final color approval based on production line samples, not the laboratory-produced color chips.  Spectrum Metal Finishing proudly adheres to industry standards of the AAMA (American Architectural Manufacturer’s Association) 2603, 2604 & 2605 specification.

Pretreatment Process
5-stage chrome phosphate pretreatment system.

HOW THE EYE PERCEIVES COLOR

Regardless of the type of coating, the method of application and whether material is earmarked for indoor or outdoor use, the appearance of its surface is determined by the responses of three photo-receptors located in the retina of the human eye.  The color of any material depends upon its ability to reflect certain wavelengths of light while absorbing others.  Variations in light levels can cause a shift in color sensitivity making blue colors appear brighter in dim light and red colors brighter in intense light.  This is why the lighting conditions during the final approval process are so crucial.

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