FOCUS ON COIL PROCESSING
Coil handling crane ( image : Street Crane ).
ON THE SURFACE
Coated coil can be slit for narrow widths , cut to required lengths , bent , profiled or deep drawn without damaging the organic coating .
“ Prepainted metals are now available with additional functionality included in the organic coating ( such as anti-bacterial ; anti-fingerprint ; anti-dirt ; easy-clean ; non-stick and heat-reflective ).”
Coil coating is a reel-fed continuous process for painting metal which is then used to make a finished part . In one continuous reel-to-reel process , a metal coil of material is unwound , cleaned , primed and then coated with up to two layers of paint on each side , before being thermally cured and then rewound .
“ The process allows for different colours and patterns to be applied to each side of the sheet . In addition , a strippable plastic film layer can be added for extra surface protection . Once coated , the coil is then further processed to give users the material in the dimensions and formats that they require ,” outlined coil- coating specialist , Cooper Coated Coil .
“ The consistency and accuracy of the coilcoating process generates excellent corrosion resistance properties compared to other painting methods . This is due to the highly controlled cleaning , pre-treatment , coating
Coil coating process ( image : Cooper Coated Coils .) application and curing stages within the process . These controls are virtually impossible to attain with other painting processes . Dealing with a ‘ flat sheet ’ allows the material to be thoroughly cleaned prior to the paint being applied . Coating in this way provides excellent control of paint film weights , which can be measured in microns ,” it added .
Counting the benefits
Coated coil can be slit for narrow widths , cut to required lengths , bent , profiled or deep drawn without damaging the organic coating . It can be processed into any number
34 | ismr . net | ISMR April 2024