I want to repaint my metal gutters. We built our house 20 years ago. I painted the gutters and downpipes burgundy, it is still in really good condition and doesn't even look very faded, but, i just dont like the colour anymore, i want to do it all black. What i want to know is, can i just clean the gutters and downpips and paint over with black or do i need to use primer then paint? There is NO flaking or peeling etc, i literally just want a different colour after 20 years. Qll the info and youtube clips seem to be on either brand new gutters or old gutters that are flaking and peeling or colourbond gutters etc. Mine are metal, previously painted, in perfect condition, i just want yo change the colour. Was thinking of asking at bunnings, but they don't always give the best/accurate advice or don't listen properly to what im actually asking or wanting to do - especially if it's not something stock standard.