Saturday, June 15th, 2013

The recognised pre-treatment for steel substrates just prior to application of powder is phosphating which can vary in coating weight. The greater the conversion coating weight the greater the degree of corrosion resistance achieved; the lower the coating weight the better the mechanical properties. It is therefore necessary to select a compromise between mechanical properties and corrosion resistance.  High phosphate coating weights can give trouble with powder coatings in that crystal fracture can occur when the coating is subjected toRead More …

Different metal working processes have varying cooling and lubrication needs. Coolants have many properties that increase their efficiency, extend their life, and minimize the potential to damage tools and products. Therefore, when choosing a coolant, many factors need to be considered. These considerations include: Tramp oil rejection Ability to settle out solids Bacterial resistance Corrosion and rust resistance Emulsification capability Foaming nature and resistance Optimal coolant life Longevity of coolant as measured against current industrial standards Cost of coolant ChemicalRead More …

When repainting a part,prior to application of the new paint coat  the old,paint often must be removed. The waste reduction assessment should start by examining what causes the need for repainting: inadequate initial part preparation; defects in coating application; equipment problems; or coating damage due to improper handling. While no process is perfect, reducing the need for repainting has a direct effect on the volume of waste generated from paint removal. Once the need for paint stripping has been reducedRead More …