In article , "nightjar"
cpb@insert my surname here.me.uk says...
I built a clean room, which had to be washed down with bleach and
disinfectant on a regular basis, using skinned foamed PVC sheet to line
walls and ceiling.

*pause to google*

I'd still have to paint it though, unless I wanted it in white, right?
So that would bring me back to which paint to use...

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KVL