A pvdf aluminum painted coil refers to an aluminium coil with pvdf paint. The full name for PVDF is Polyvinylidene Fluoride, a coating with polyester resin as the main film-forming substance. It is formed by polyhydric alcohol and polybasic acid condensation polymerization. The paint film is plump, bright, thick in conjunctiva, good in insulation, excellent in physical and mechanical properties (especially toughness, abrasion resistance, impact resistance and scratch resistance) and durable in color retention after long-term exposure to sunlight. As a result, a pvdf aluminium coil lasts 20 years in outdoor application.
Alloys of a pvdf coated aluminium coil cover 1050, 1060, 1100, 3003, 3004, 3105, 5052, 5754 and 8011 etc. The coating thickness is over 25micron. Overall thickness of the coil ranges between 0.08mm and 5.0mm, and width up to 2650mm. Coils core diameters include 150mm, 405mm, 505mm, 508mm and 510mm. The color standard of E is less than 2, not obvious by eyeballing. The pencil hardness of over 2HB. The coating adhesive is not lower than first grade Impact: no any crack (50kg/cm, ASTMD-2794:1993) . The T bend is less than 2T. In the boiling point test, there’s no distortion or color change in the 99 or more degree water which will be further cooled for 2 hours. The corrosion resistance test is carried out by placing the surface of an pvdf aluminum painted coil in the 5% muriatic acid and 5% NaCL, indoor deep in the 2% muriatic acid and 2% NaCL, after 48 hours, and there is no change in the coil surface.
Haomei pvdf aluminum painted coil rolls find their applications in a vast scope of fields, including house roofing, van body (roofing, flooring, side panels), shutter doors, blinds, car plates, ceiling, solar collector, curtain walls, spacers, aluminium composite panels, channel letters, gutters and so on. In particular, the aluminium composite panel further falls on numerous end products, such as furniture, ornaments, crafts, shavers and so on.