The aluminum trim coils including PE coated aluminium coil, PVDF coated aluminum coil, epoxy paint color coated aluminum coil, which is suitable for roofing, gutter, decoration and insulation industry. The common alloys are AA1100,AA1050, AA3003, AA3004, AA3005, AA3105, AA5005, AA5182, AA5052, AA5754, AA5454, AA8011,etc.
The trim coil colors are usually toned according to Ral or PANTONE color card and the paint is usually fluorocarbon or polyester paint. Haomei trim coil is produced by the international advanced roller coating process, which can ensure that the surface of the color-coated aluminum coil is dust-free and no color difference.
The color coated aluminum coil for roof with a layer of fluorocarbon paint or polyester paint has excellent characteristics such as UV resistance, acid and alkali resistance, and high weather resistance. The lifespan can be more than 20 years.
It is also used for aluminum gutter and down pipes, using 3105H24 and 3003H24 aluminum alloys. One of the often used specification is that it is coated with polyester (PET) paint on both sides with front film thickness 25-28 um and back film thickness 15-18 um. Good mechanical properties make it easy to bend and weld, which are favored by many aluminum alloy gutter and downspout manufacturers at home and abroad.
The general production process of coil coating has 5 steps, namely coil input, cleaning and chemical treatment, painting, curing and finished product output. The process layout and equipment composition are different in different cases, but the basic parts are the same.
Surface cleaning and chemical treatment is very important for the paint adhesion. A production line has at least two coating rollers to ensure two layers of topcoat and prime. The curing of the paint layer means that the coil that has just been painted should be fixed before touching the next roller surface to avoid mutual adhesion and damage.
As a big aluminum coil manufacturer, Haomei Aluminum has white, brown, gold, red and black aluminum coil stock. Welcome to leave message below to inquire what you need.