Comment about spraying outside and painting the neighbourhood in the Allidle compressor thread reminded me to ask if anyone had tried the Hammerite Metalmaster electrostatic sprayer.
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the boxes on a shed shelf about =A350 and a can of paint for it =A318. The marketing says one can is enough paint for 12m run of 1m high railings or there abouts. Being electrostatic it's supposed to "paint both sides at once" which would be useful here with railings only 6" from the back of the shed thus one side is not that easy to get at.