Hello have question do you have product that you can recommend to spray galvanised roller shutters
Assuming the galvanised shutters are weathered, clean, dry, sound and prepared as detailed in the technical data sheet we can recommend Bradite One Can Matt followed by Bradite Fastrac.
This is avaialble in many RAL and BS colours in a satin or gloss finish.
Please be aware that any paint coating applied may wear on the joints of a roller shutter and the faces when they door is rolled onto the drum.