used tank stainless steel with compartments
details to article: 28307
| Producer: | Eisenmann |
| Typ: | Becken aus Edelstahl |
| Year of manufacture: | 2010 |
| Pieces: | 1 |
| Condition: | gebraucht / used / second hand |
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informations about: powder coatings Powder coating is a type of coating that is applied as a free-flowing, dry powder. The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. The coating is typically applied electrostatically and is then cured under heat to allow it to flow and form a "skin". The powder may be a thermoplastic or a thermoset polymer. It is usually used to create a hard finish that is tougher than conventional paint. Powder coating is mainly used for coating of metals, such as "whiteware," aluminium extrusions, and automobile and bicycle parts. Newer technologies allow other materials, such as MDF (medium-density fibreboard), to be powder coated using different methods. There are two main categories of powder coatings: thermosets and thermoplastics. The thermosetting variety incorporates a cross-linker into the formulation. When the powder is baked, it reacts with other chemical groups in the powder to polymerize, improving the performance properties. The thermoplastic variety does not undergo any additional reactions during the baking process, but rather only flows out into the final coating. The most common polymers used are polyester, polyurethane, polyester-epoxy (known as hybrid), straight epoxy (fusion bonded epoxy) and acrylics. Production: The polymer granules are mixed with hardener, pigments and other powder ingredients in a mixer The mixture is heated in an extruder The extruded mixture is rolled flat, cooled and broken into small chips The chips are milled and sieved to make a fine powder The powder coating process involves three basic steps: Part preparation or the pre-treatment The powder application Curing Methylene chloride is generally effective at removing powder coating, however most other organic solvents (acetone, thinners, etc.) are completely ineffective. Most recently the suspected human carcinogen methylene chloride is being replaced by benzyl alcohol with great success. Powder coating can also be removed with abrasive blasting. 98% sulfuric acid commercial grade also removes powder coating film. Certain low grade powder coats can be removed with steel wool, though this might be a more labor-intensive process than desired. From Wikipedia, the free encyclopedia | ||||||||||||||||||||||||||||
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