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2. Prepainted metal - Wikipedia

   en.wikipedia.org/wiki/Prepainted_metal

   According to EN 13523-0, a prepainted metal (or coil coated metal) is a ‘metal on which a coating material (e.g. paint, film…) has been applied by coil coating’.When applied onto the metallic substrate, the coating material (in liquid, in paste or powder form) forms a film possessing protective, decorative and/or other specific properties.

3. Primer (paint) - Wikipedia

   en.wikipedia.org/wiki/Primer_(paint)

   Primer reduces the number of paint coats needed for good coverage and even color. A thin layer of paint may still be permeable to water. Water can permeate into the wood and cause warping, mildew, or dry rot. Primer improves the waterproofing of the finish. [4] Primers are not used as part of a wood stain treatment because they obscure the wood ...

4. Phosphate conversion coating - Wikipedia

   en.wikipedia.org/wiki/Phosphate_conversion_coating

   The process takes advantage of the low solubility of phosphates at medium or high pH. The bath is a solution of phosphoric acid (H 3 PO 4), containing the desired iron, zinc or manganese cations and other additives. [10] The acid reacts with the iron metal producing hydrogen and iron cations: Fe + 2 H 3 O + → Fe 2+ + H 2 + 2 H 2 O

5. Coating - Wikipedia

   en.wikipedia.org/wiki/Coating

   Extrusion coating - generally high pressure, often high temperature, and with the web travelling much faster than the speed of the extruded polymer Curtain coating- low viscosity, with the slot vertically above the web and a gap between slot-die and web. Slide coating- bead coating with an angled slide between the slot-die and the bead.

6. Roof coating - Wikipedia

   en.wikipedia.org/wiki/Roof_coating

   Many roof coatings are elastomeric, that is, they have elastic properties that allow them to stretch and return to their original shape without damage. Typical roof coating dry film thickness vary from paint film thickness (plus or minus 0.075 mm (3 dry mils) to more than 1 mm (40 dry mils). This means a roof coating actually becomes the top ...

7. Rustproofing - Wikipedia

   en.wikipedia.org/wiki/Rustproofing

   Termed e-coat, "electrocoat automotive primers are applied by totally submerging the assembled car body in a large tank that contains the waterborne e-coat, and the coating is applied through cathodic electrodeposition. This assures nearly 100% coverage of all metal surfaces by the primer.